WO2011054156A1 - 一种微波信号的校正方法、装置和*** - Google Patents

一种微波信号的校正方法、装置和*** Download PDF

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Publication number
WO2011054156A1
WO2011054156A1 PCT/CN2009/074869 CN2009074869W WO2011054156A1 WO 2011054156 A1 WO2011054156 A1 WO 2011054156A1 CN 2009074869 W CN2009074869 W CN 2009074869W WO 2011054156 A1 WO2011054156 A1 WO 2011054156A1
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Prior art keywords
signal
radio frequency
frequency signal
transmitter
error
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PCT/CN2009/074869
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English (en)
French (fr)
Inventor
赵贵学
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN200980121257.XA priority Critical patent/CN102986181B/zh
Priority to PCT/CN2009/074869 priority patent/WO2011054156A1/zh
Priority to EP09845358A priority patent/EP2413553A4/en
Priority to RU2011131781/07A priority patent/RU2535917C2/ru
Priority to US12/984,705 priority patent/US8824589B2/en
Publication of WO2011054156A1 publication Critical patent/WO2011054156A1/zh
Priority to US13/250,278 priority patent/US8331479B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/223—Demodulation in the optical domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2064—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers using microwave technology
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3845—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
    • H04L27/3854—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using a non - coherent carrier, including systems with baseband correction for phase or frequency offset

Definitions

  • the present invention relates to the field of microwave communication technologies, and in particular, to a method, device and system for correcting microwave signals.
  • Microwave technology directly transmits data through space without the need to lay fiber or cable. It has obvious engineering advantages in cities, remote areas or special areas (such as rivers). Microwave technology is convenient for networking, flexible in use, and short in service opening time. With the development of microwave technology, the cost of microwave equipment is gradually reduced. Therefore, the use of microwave technology is becoming more and more widespread.
  • the nonlinearity of the amplifier causes signal distortion
  • the in-band fluctuation of the channel filter causes the gain imbalance of the RF channel, etc.
  • the existing error correction method is: extracting part of the transmitter's transmitted signal, performing down-conversion, band-pass filtering, and analog-to-digital converter (ADC) sampling processing to obtain a feedback IQ signal, and the error calculation module is based on the original IQ.
  • the signal and feedback IQ signals calculate the error signal of the transmit channel, pre-distort the transmitted data according to the error signal, and then transmit through the transmit channel.
  • the existing error correction technology has at least the following disadvantages: It is necessary to increase the sampling circuit, the down converter, the band pass filter and the ADC, etc., which directly increases the system cost and power consumption, and can only correct the error of the transmitter, and cannot correct the reception. The error introduced by the machine.
  • the embodiment of the invention provides a method, a device and a system for correcting a microwave signal, which can realize the correction of the microwave signal without adding a sampling circuit, a down converter, a band pass filter and an ADC.
  • a method for correcting a microwave signal comprising:
  • a method for correcting a microwave signal comprising:
  • the second radio frequency signal carries the feedback IQ signal, and the transmitter performs correction using the feedback IQ signal.
  • a method for correcting a microwave signal comprising:
  • the second radio frequency signal carries the error signal
  • the transmitter uses the error signal to correct the transmitted radio frequency signal.
  • a microwave signal correction device includes:
  • a receiving module configured to receive a first radio frequency signal from a transmitter, where a microwave frame of the first radio frequency signal carries an original IQ signal;
  • An acquiring module configured to sample the first radio frequency signal, obtain sampling data, obtain a feedback IQ signal from the sampling data, and further perform demodulation on the sampling data to recover the microwave a frame, the original IQ signal is obtained;
  • An error calculation module configured to perform error calculation using the original IQ signal and the feedback IQ signal to obtain an error signal
  • a correction module for performing correction using the error signal.
  • a microwave signal correction device includes:
  • a receiving module configured to receive a first radio frequency signal from a transmitter
  • An acquiring module configured to sample the first radio frequency signal, obtain sampling data, and obtain a feedback IQ signal from the sampling data
  • a sending module configured to send a second radio frequency signal to the transmitter, where the second radio frequency signal carries the feedback IQ signal, and the transmitter uses the feedback IQ signal to perform correction.
  • a microwave signal correction device includes:
  • a receiving module configured to receive a first radio frequency signal from a transmitter
  • An acquiring module configured to sample the first radio frequency signal, obtain sampling data, and obtain a feedback IQ signal from the sampling data
  • An error calculation module configured to perform an error calculation using the feedback IQ signal to obtain an error signal
  • a sending module configured to send a second radio frequency signal to the transmitter, where the second radio frequency signal carries the error signal, The transmitter uses the error signal to correct the transmitted radio frequency signal.
  • a microwave signal correction system comprising:
  • a transmitter configured to send a first radio frequency signal to a receiver, where the first radio frequency signal carries a raw IQ signal in a microwave frame;
  • the receiver is configured to receive the first radio frequency signal, sample the first radio frequency signal, obtain sampling data, obtain a feedback IQ signal from the sampling data, and demodulate and recover the sampling data. Deriving a microwave frame to obtain the original IQ signal; performing error calculation using the original IQ signal and the feedback IQ signal to obtain an error signal; and performing correction using the error signal.
  • a microwave signal correction system comprising: a transmitter, configured to send the first radio frequency signal to the receiver;
  • the receiver is configured to receive the first radio frequency signal, sample the first radio frequency signal, obtain sampling data, obtain a feedback IQ signal from the sample data, and send a second radio frequency signal to the transmitter
  • the second radio frequency signal carries the feedback IQ signal
  • the transmitter is further configured to receive the second radio frequency signal and perform correction using the feedback IQ signal.
  • a microwave signal correction system comprising:
  • a transmitter configured to send the first radio frequency signal to the receiver
  • the receiver is configured to receive the first radio frequency signal, sample the first radio frequency signal, obtain sampling data, obtain a feedback IQ signal from the sampled data, and perform error calculation by using the feedback IQ signal An error signal; transmitting a second radio frequency signal to the transmitter, where the second radio frequency signal carries the error signal;
  • the transmitter is further configured to receive the second radio frequency signal, and use the error signal to correct the transmitted radio frequency signal.
  • the receiver samples the radio frequency signal from the transmitter, obtains sampling data, obtains a feedback IQ signal from the sampled data, and uses the feedback IQ signal to perform error Correction.
  • Sampling the received RF signal does not require adding additional devices. It can be processed using the receiver's inherent receive channel, reducing cost and power consumption.
  • the feedback IQ signal is the signal processed by the receive channel, and the transmitter error correction is implemented. At the same time, correction of the error introduced by the receiver receiving channel can be achieved.
  • FIG. 1 is a schematic flow chart of an error correction method according to an embodiment of the present invention
  • 2 is a schematic flowchart of another error correction method according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of another error correction method according to an embodiment of the present invention
  • FIG. 4 is a schematic flow chart of still another error correction method according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart diagram of still another error correction method according to an embodiment of the present invention.
  • FIG. 6 is a schematic flow chart of still another error correction method according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of an error correction apparatus according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of another error correction apparatus according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of still another error correction apparatus according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of an error correction system according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of another error correction system according to an embodiment of the present invention
  • FIG. 12 is a schematic structural diagram of another error correction system according to an embodiment of the present invention
  • FIG. 13 is still another embodiment of the present invention.
  • FIG. 14 is a schematic structural diagram of still another error correction system according to an embodiment of the present invention
  • FIG. 15 is a schematic structural diagram of another error correction system according to an embodiment of the present invention
  • the transmitter sends a signal to the receiver, and the process of transmitting the signal by the transmitter and receiving the signal by the receiver may cause an error.
  • the method, device and system for correcting the microwave signal provided by the embodiments of the present invention are used for correction.
  • the error generated by the receiver transmitting the signal to the transmitter can be
  • the transmitter and the receiver have the functions of transmitting and receiving signals.
  • the names of the transmitter and the receiver are only for convenience of description. In practical applications, the transmitter is used for correction. And the receiver is mostly part of the transceiver, so it has the function of transmitting and receiving signals at the same time.
  • the transmitter first generates an original IQ signal, which can be implemented by a service processing and a modulator module, and then obtains a radio frequency signal through digital-to-analog conversion, up-conversion, and the like of the transmission channel, and sends the radio frequency signal.
  • the receiver receives the radio frequency signal from the transmitter, and obtains a sampling signal for demodulation by performing down-conversion, analog-to-digital conversion, etc. of the receiving channel, and extracts a part thereof as a feedback IQ signal.
  • the original IQ signal has changed after being processed by the transmitter's transmit channel, the receiver's receive channel, etc., which increases the IQ signal amplitude and phase imbalance error, channel gain error and nonlinear error, which leads to deteriorating system demodulation performance.
  • error correction is performed according to the feedback IQ signal, and the RF signal transmitted by the transmitter or the RF signal received by the receiver is corrected to minimize the error caused by the analog channel of the transceiver, thereby demodulating performance of the system. Get the best.
  • the transmitter adds the original IQ signal to the microwave frame as data for transmission to the receiver
  • the receiver can extract the original IQ signal from the microwave frame
  • the original IQ signal extracted by the receiver and the transmitter are added to the microwave.
  • the original IQ signal in the frame is the same.
  • the error correction method includes:
  • S100 Receive a first radio frequency signal from a transmitter, where a radio frame of the first radio frequency signal carries an original IQ signal;
  • S102 Sample the first radio frequency signal to obtain sampling data, and obtain a feedback IQ signal from the sample data.
  • the first radio frequency signal is received from the transmitter, and the original radio signal is carried in the microwave frame of the first radio frequency signal; the first radio frequency signal is sampled to obtain sampling data, and the feedback IQ signal is obtained from the sampled data; The sampled data is demodulated, and the microwave frame is recovered to obtain the original IQ signal; the error signal is obtained by using the original IQ signal and the feedback IQ signal to obtain an error signal; and the error signal is used for correction.
  • the sampling process of the received RF signal does not need to add additional devices, and the receiver can be processed by the receiving channel, which reduces the cost and power consumption, and the feedback IQ signal is the signal processed by the receiving channel. At the same time as the transmitter error correction is implemented, the correction of the error introduced by the receiver receiving channel can be realized.
  • the error correction method includes:
  • S200 Receive a first radio frequency signal from a transmitter, where a radio frame of the first radio frequency signal carries an original IQ signal.
  • the transmitter generates the original IQ signal, which is divided into two paths.
  • One original IQ signal is extracted into the microwave frame, and processed by the processor and sent to the receiver through the transmission channel after being processed by the modulator, so that the microwave frame of the RF signal received by the receiver is received.
  • the original IQ signal is carried in the original IQ signal; the original IQ signal is processed by digital-to-analog conversion, up-conversion, etc. of the transmission channel to obtain a radio frequency signal, which is sent to the receiver.
  • S202 Sample the first radio frequency signal to obtain sampling data, and obtain a feedback IQ signal from the sampled data.
  • the sampling data is obtained by the down-conversion of the receiving channel, analog-to-digital conversion, etc., and the feedback IQ signal is obtained from the sampled data, and a part of the sampled data can be directly extracted as the feedback IQ signal.
  • Error correction can be implemented by a demodulator and a business processing module.
  • the received RF signal is directly corrected by using the error signal, thereby improving the receiving performance of the receiver.
  • the error correction method includes:
  • S300 Receive a first radio frequency signal from a transmitter, where a microwave frame of the first radio frequency signal carries an original IQ signal.
  • the transmitter generates the original IQ signal, which is divided into two paths.
  • One original IQ signal is extracted into the microwave frame, and processed by the processor and sent to the receiver through the transmission channel after being processed by the modulator, so that the microwave frame of the RF signal received by the receiver is received.
  • the original IQ signal is carried in the original IQ signal; the original IQ signal is processed by digital-to-analog conversion, up-conversion, etc. of the transmission channel to obtain a radio frequency signal, which is sent to the receiver.
  • S302 sampling the first radio frequency signal, obtaining sampling data, and obtaining a feedback IQ signal from the sampling data;
  • the feedback IQ signal is obtained by processing the down-conversion of the receiving channel, analog-to-digital conversion, and the like.
  • the service processing and the modulator module of the transmitter can correct the transmitted radio frequency signal by using the error signal. This is a prior art and will not be described here.
  • the error signal is sent to the transmitter, and the transmitter uses the error signal to correct the transmitted radio frequency signal, thereby improving the transmission performance of the transmitter and improving the receiving performance of the receiver.
  • the error correction method includes: S400. Receive a first radio frequency signal from a transmitter.
  • S404 Send a second RF signal to the transmitter, where the second RF signal carries a feedback IQ signal, and the transmitter uses the feedback IQ signal to perform correction.
  • the first radio frequency signal is received from the transmitter; the first radio frequency signal is sampled, the sampled data is obtained, and the feedback IQ signal is obtained from the sampled data; the second radio frequency signal is sent to the transmitter, and the second radio frequency signal is carried.
  • There is a feedback IQ signal and the transmitter uses the feedback IQ signal for correction. Sampling the received RF signal does not require adding additional devices. It can be processed using the receiver's inherent receive channel, reducing cost and power consumption.
  • the feedback IQ signal is processed by the receive channel. Therefore, the transmitter is implemented. At the same time as the error correction, the correction of the error introduced by the receiver receiving channel can be realized.
  • the error correction method includes:
  • the service processing of the transmitter and the modulator generate the original IQ signal, which is divided into two paths, one original IQ signal is extracted to the local; the other original IQ signal is directly transmitted to the receiver through the transmission channel, that is, digital-to-analog conversion through the transmission channel, After the frequency conversion is processed, the RF signal is obtained and sent to the receiver. .
  • S504 Send a second RF signal to the transmitter, where the second RF signal carries a feedback IQ signal, and the transmitter uses the original IQ signal and the feedback IQ signal to calculate an error to obtain an error signal, and the transmitter uses the error signal to correct the transmitted RF signal. .
  • the transmitter uses the feedback IQ signal and the local raw IQ signal for error calculation.
  • the feedback IQ signal is sent to the transmitter, and the transmitter uses the original IQ signal and the feedback IQ signal to perform error calculation to obtain an error signal, and the error signal is used to transmit the RF signal. Correction can improve the transmitter's transmit performance and also improve the receiver's receive performance.
  • Example 6 (not carrying original)
  • the error correction method includes:
  • the transmitter's service processing and modulator generate the original IQ signal, and the RF signal is obtained by digital-to-analog conversion, up-conversion, etc. of the transmission channel, and sent to the receiver.
  • the error signal is directly calculated by using the feedback IQ signal, for example, according to time domain equalization, because the calculation is performed only according to the feedback IQ signal, the correction effect may be slightly worse, but between the transmitter and the receiver. The amount of information passed will be reduced accordingly.
  • the first radio frequency signal is received from the transmitter; the first radio frequency signal is sampled to obtain sampling data, and the feedback IQ signal is obtained from the sampled data; the error signal is obtained by using the feedback IQ signal to obtain an error signal;
  • the radio frequency signal is sent to the transmitter, and the second radio frequency signal carries an error signal, and the transmitter uses the error signal to correct the transmitted radio frequency signal.
  • Sampling the received RF signal does not require adding additional devices. It can be processed using the receiver's inherent receive channel, reducing cost and power consumption.
  • the feedback IQ signal is processed by the receive channel. Therefore, the transmitter is implemented. At the same time as the error correction, the correction of the error introduced by the receiver receiving channel can be achieved.
  • the error correction device includes:
  • the receiving module 700 is configured to receive a first radio frequency signal from the transmitter, where the micro-wave frame of the first radio frequency signal carries the original IQ signal;
  • the obtaining module 702 is configured to sample the first radio frequency signal to obtain sampling data, and the number of samples According to the feedback IQ signal; also used to demodulate the sampled data, recover the microwave frame, and obtain the original IQ signal;
  • the error calculation module 704 is configured to perform an error calculation using the original IQ signal and the feedback IQ signal to obtain an error signal;
  • a correction module 706 is configured to perform correction using the error signal.
  • the receiving module receives the first radio frequency signal from the transmitter, where the microwave frame of the first radio frequency signal carries the original IQ signal; the acquiring module samples the first radio frequency signal to obtain sampling data, and obtains the sampled data. The IQ signal is fed back; the sampled data is demodulated, and the microwave frame is recovered to obtain the original IQ signal; the error calculation module uses the original IQ signal and the feedback IQ signal to perform error calculation to obtain an error signal; and the correction module uses the error signal for correction.
  • the sampling process of the received RF signal does not need to add additional devices, and can be processed by using the receiver's inherent receiving channel, which reduces cost and power consumption, and feeds back the IQ signal to the signal processed by the receiving channel. Therefore, the correction of the introduction error of the receiver receiving channel can be realized while implementing the transmitter error correction.
  • the error correction device includes:
  • the receiving module 700 is configured to receive a first radio frequency signal from the transmitter, where the micro-wave frame of the first radio frequency signal carries the original IQ signal;
  • the transmitter generates the original IQ signal, which is divided into two paths.
  • One original IQ signal is extracted into the microwave frame, and processed by the processor and sent to the receiver through the transmission channel after being processed by the modulator, so that the microwave frame of the RF signal received by the receiver is received.
  • the original IQ signal is carried in the original IQ signal; the original IQ signal is processed by digital-to-analog conversion, up-conversion, etc. of the transmission channel to obtain a radio frequency signal, which is sent to the receiver.
  • the obtaining module 702 is configured to sample the first radio frequency signal, obtain sampling data, and obtain a feedback IQ signal from the sampling data.
  • the method further includes: demodulating the sampling data, recovering the microwave frame, and obtaining the original IQ signal;
  • Sampling data is obtained by down-conversion, analog-to-digital conversion, etc. of the receiving channel, from the sampled data Get the feedback IQ signal.
  • the microwave frame can be recovered, thereby obtaining the original IQ signal stored in the microwave frame, which can be implemented by the demodulator and the service processing module.
  • the error calculation module 704 is configured to perform an error calculation using the original IQ signal and the feedback IQ signal to obtain an error signal;
  • a correction module 706 is configured to perform correction using the error signal.
  • the correction module 706 is specifically configured to correct the received RF signal by using an error signal, which can be implemented by a demodulator and a service processing module.
  • the correction module directly corrects the received radio frequency signal by using the error signal, thereby improving the receiving performance of the receiver.
  • the error correction device includes:
  • the receiving module 700 is configured to receive a first radio frequency signal from the transmitter, where the micro-wave frame of the first radio frequency signal carries the original IQ signal;
  • the transmitter generates the original IQ signal, which is divided into two paths.
  • One original IQ signal is extracted into the microwave frame, and processed by the processor and sent to the receiver through the transmission channel after being processed by the modulator, so that the microwave frame of the RF signal received by the receiver is received.
  • the original IQ signal is carried in the original IQ signal; the original IQ signal is processed by digital-to-analog conversion, up-conversion, etc. of the transmission channel to obtain a radio frequency signal, which is sent to the receiver.
  • the obtaining module 702 is configured to sample the first radio frequency signal, obtain sampling data, and obtain a feedback IQ signal from the sampling data.
  • the method further includes: demodulating the sampling data, recovering the microwave frame, and obtaining the original IQ signal;
  • the error calculation module 704 is configured to perform an error calculation using the original IQ signal and the feedback IQ signal to obtain an error signal;
  • a correction module 706 is configured to perform correction using the error signal.
  • the calibration module 706 is specifically configured to send the second radio frequency signal to the transmitter, and the microwave frame of the second radio frequency signal carries an error signal, and the transmitter uses the error signal to correct the transmitted radio frequency signal.
  • the correction module sends an error signal to the transmitter, and the transmitter uses the error signal.
  • the correction of the transmitted RF signal can improve the transmission performance of the transmitter and also improve the reception performance of the receiver.
  • the error correction device includes:
  • a receiving module 800 configured to receive a first radio frequency signal from a transmitter
  • the service processing of the transmitter and the modulator generate the original IQ signal, which is divided into two paths, one original IQ signal is extracted to the local; the other original IQ signal is directly transmitted to the receiver through the transmission channel, that is, digital-to-analog conversion through the transmission channel, After the frequency conversion is processed, the RF signal is obtained and sent to the receiver.
  • the obtaining module 802 is configured to sample the first radio frequency signal, obtain sampling data, and obtain a feedback IQ signal from the sampling data;
  • the sending module 804 is configured to send a second radio frequency signal to the transmitter, the second radio frequency signal carries a feedback IQ signal, and the transmitter uses the feedback IQ signal to perform correction.
  • the transmitter uses the local original IQ signal and the feedback IQ signal to perform error calculation to obtain an error signal, and the transmitter uses the error signal to correct the transmitted RF signal.
  • the receiving module receives the first radio frequency signal from the transmitter; the acquiring module samples the first radio frequency signal, obtains sampling data, and obtains a feedback IQ signal from the sampling data; and the sending module sends the second radio frequency signal to the transmitter.
  • the second RF signal carries a feedback IQ signal, and the transmitter uses the feedback IQ signal for correction. Sampling the received RF signal does not require adding additional devices. It can be processed using the receiver's inherent receive channel, reducing cost and power consumption.
  • the feedback IQ signal is processed by the receive channel. Therefore, the transmitter is implemented. At the same time as the error correction, the correction of the error introduced by the receiver receiving channel can be realized.
  • the error correction device includes:
  • a receiving module 900 configured to receive a first radio frequency signal from a transmitter
  • the service processing of the transmitter and the modulator generate the original IQ signal, and the RF signal is obtained by the digital-to-analog conversion, up-conversion, etc. of the transmission channel, and is sent to the receiver.
  • the obtaining module 902 is configured to sample the first radio frequency signal, obtain sampling data, and obtain a feedback IQ signal from the sampling data;
  • the error calculation module 904 is configured to perform error calculation using the feedback IQ signal to obtain an error signal.
  • the error signal is directly calculated by using the feedback IQ signal, for example, according to time domain equalization, because only the feedback IQ signal is used. The calculation, so the effect of the correction may be slightly worse, but the amount of information transmitted between the transmitter and the receiver will be reduced accordingly.
  • the transmitting module 906 is configured to send the second radio frequency signal to the transmitter, the second radio frequency signal carries the error signal, and the transmitter uses the error signal to correct the transmitted radio frequency signal.
  • the transmitter uses the feedback IQ signal and the local raw IQ signal for error calculation.
  • the receiving module receives the first radio frequency signal from the transmitter; the acquiring module samples the first radio frequency signal to obtain sampling data, and obtains a feedback IQ signal from the sampling data; the error calculating module uses the feedback IQ signal to perform error calculation. Obtaining an error signal; the transmitting module sends a second radio frequency signal to the transmitter, the second radio frequency signal carries an error signal, and the transmitter uses the error signal to correct the transmitted radio frequency signal. Sampling the received RF signal does not require adding additional devices. It can be processed using the receiver's inherent receive channel, reducing cost and power consumption. The feedback IQ signal is processed by the receive channel. Therefore, the transmitter is implemented. At the same time as the error correction, the correction of the receiver receiving channel I input error can be realized.
  • the error correction system includes:
  • the transmitter 1000 is configured to send the first radio frequency signal to the receiver 1002, where the micro-wave frame of the first radio frequency signal carries the original IQ signal;
  • the receiver 1002 is configured to receive the first radio frequency signal, sample the first radio frequency signal, obtain sampling data, and obtain a feedback IQ signal from the sampled data; demodulate the sampled data, recover the microwave frame, and obtain the original IQ signal; The error signal is obtained by using the original IQ signal and the feedback IQ signal to obtain an error signal; the error signal is used for correction.
  • the transmitter sends the first radio frequency signal to the receiver, and the microwave of the first radio frequency signal
  • the frame carries the original IQ signal
  • the receiver receives the first RF signal; samples the first RF signal to obtain sampled data, and obtains a feedback IQ signal from the sampled data; demodulates the sampled data to recover the microwave frame,
  • the original IQ signal is obtained by using the original IQ signal and the feedback IQ signal to obtain an error signal; and the error signal is used for correction.
  • the receiver samples the received RF signal without adding additional devices. It can use the receiver's inherent receive channel for processing, reducing cost and power consumption, and feeding back the IQ signal to the received channel. Therefore, At the same time as the transmitter error correction, the correction of the error introduced by the receiver receiving channel can be realized.
  • the error correction system includes:
  • the transmitter is configured to send the first radio frequency signal to the receiver, where the microwave frame of the first radio frequency signal carries the original IQ signal;
  • the service processing of the transmitter and the modulator generate the original IQ signal, which is divided into two paths.
  • One original IQ signal is extracted into the microwave frame, processed by the processor and sent to the receiver through the transmission channel after processing by the processor; another original IQ signal Send directly to the receiver through the transmit channel.
  • the receiver is configured to receive the first radio frequency signal, sample the first radio frequency signal, obtain sampling data, and obtain a feedback IQ signal from the sampled data; demodulate the sampled data, recover the microwave frame, and obtain the original IQ signal; The IQ signal and the feedback IQ signal are error-calculated to obtain an error signal; the error signal is used for correction.
  • the receiving channel of the receiver receives the first RF signal from the transmitter, and obtains a feedback IQ signal through down-conversion, analog-to-digital conversion, etc. of the receiving channel, and can be recovered by demodulating the sampled data by the demodulator and the service processing module.
  • the microwave frame is obtained, thereby obtaining the original IQ signal stored in the microwave frame, and the error signal is obtained by using the original IQ signal and the feedback IQ signal to obtain an error signal, and the demodulator and the service processing module directly use the error signal to directly correct the received RF signal.
  • the error calculation requires that the original IQ signal and the feedback IQ signal correspond, that is, the feedback IQ signal is an IQ signal obtained by processing the original IQ signal through the transmitter's transmission channel, the receiver's receiving channel, and the like.
  • the error correction can be performed if it does not correspond, but the effect of the correction is not optimal.
  • the error signal is used to correct the received RF signal.
  • the embodiment needs to be reused. The method obtains a new error signal and then uses the new error signal to error correct the received RF signal. Other embodiments are similar.
  • the receiver directly corrects the received radio frequency signal by using the error signal, thereby improving the receiving performance of the receiver.
  • the error correction system includes:
  • the transmitter is configured to send the first radio frequency signal to the receiver, where the microwave frame of the first radio frequency signal carries the original IQ signal;
  • the service processing of the transmitter and the modulator generate the original IQ signal, which is divided into two paths.
  • One original IQ signal is extracted into the microwave frame, processed by the processor and sent to the receiver through the transmission channel after processing by the processor; another original IQ signal Send directly to the receiver through the transmit channel.
  • the receiver is configured to receive the first radio frequency signal, sample the first radio frequency signal, obtain sampling data, and obtain a feedback IQ signal from the sampled data; demodulate the sampled data, recover the microwave frame, and obtain the original IQ signal; The IQ signal and the feedback IQ signal are error-calculated to obtain an error signal; the error signal is used for correction.
  • the receiving channel of the receiver receives the first RF signal from the transmitter, and obtains a feedback IQ signal through down-conversion, analog-to-digital conversion, etc. of the receiving channel, and can be recovered by demodulating the sampled data by the demodulator and the service processing module.
  • the microwave frame is obtained, thereby obtaining the original IQ signal stored in the microwave frame, and the error signal is obtained by using the original IQ signal and the feedback IQ signal to obtain an error signal, and the receiver transmits the second RF signal to the transmitter, and the second RF signal carries the microwave frame.
  • the error signal is used by the transmitter to correct the transmitted RF signal.
  • the error signal is sent to the transmitter, and the transmitter uses the error signal to transmit
  • the RF signal is corrected to improve the transmitter's transmit performance and also improve the receiver's receive performance.
  • the error correction system includes:
  • a transmitter 1300 configured to send a first radio frequency signal to the receiver 1102
  • the receiver 1302 is configured to receive the first radio frequency signal, sample the first radio frequency signal, obtain sampling data, obtain a feedback IQ signal from the sampled data, and send the second radio frequency signal to the transmitter 1300, where the second radio frequency signal carries feedback IQ signal;
  • Transmitter 1300 is also operative to receive a second RF signal for correction using a feedback IQ signal.
  • the transmitter sends the first radio frequency signal to the receiver; the receiver receives the first radio frequency signal; samples the first radio frequency signal to obtain sampling data, and obtains a feedback IQ signal from the sampled data; and sends the second radio frequency signal to the transmitter,
  • the second RF signal carries a feedback IQ signal; the transmitter also receives the second RF signal and performs correction using the feedback IQ signal. Sampling the received RF signal does not require adding additional devices. It can be processed using the receiver's inherent receive channel, reducing cost and power consumption.
  • the feedback IQ signal is processed by the receive channel. Therefore, the transmitter is implemented. At the same time of error correction, the correction of the receiver receiving channel error can be realized.
  • the error correction system includes:
  • the transmitter is configured to transmit the first radio frequency signal to the receiver.
  • the transmitter's traffic processing and modulator generate the original IQ signal, split into two, one original IQ signal is extracted locally; the other raw IQ signal is sent directly to the receiver through the transmit channel.
  • the receiver is configured to receive the first radio frequency signal; sample the first radio frequency signal to obtain sampled data, and obtain a feedback IQ signal from the sampled data; send the second radio frequency signal to the transmitter, and the second radio frequency signal carries the feedback IQ signal.
  • the microwave signal of the second RF signal has a feedback IQ signal, and the transmitter can extract the feedback IQ. signal.
  • the transmitter is also operative to receive a second RF signal for correction using a feedback IQ signal.
  • the transmitter extracts the feedback IQ signal, uses the local original IQ signal and the feedback IQ signal to calculate the error to obtain an error signal, and uses the error signal to correct the transmitted RF signal.
  • the feedback IQ signal is sent to the transmitter, and the transmitter uses the original IQ signal and the feedback IQ signal to calculate the error to obtain an error signal, and the error signal is used to correct the transmitted RF signal, thereby improving the transmitter performance. At the same time, it can also improve the receiving performance of the receiver.
  • the error correction system includes:
  • a transmitter 1500 configured to send a first radio frequency signal to the receiver 1502;
  • the receiver 1502 is configured to receive the first radio frequency signal, sample the first radio frequency signal, obtain sampling data, and obtain a feedback IQ signal from the sampled data; use the feedback IQ signal to perform error calculation to obtain an error signal; and send the second radio frequency signal to The transmitter 1500, the second radio frequency signal carries an error signal;
  • the transmitter 1500 is further configured to receive the second radio frequency signal and use the error signal to correct the transmitted radio frequency signal.
  • the transmitter sends the first radio frequency signal to the receiver; the receiver receives the first radio frequency signal; samples the first radio frequency signal to obtain sampling data, and obtains a feedback IQ signal from the sampled data; using the feedback IQ signal
  • the error is calculated to obtain an error signal; the second RF signal is sent to the transmitter, and the second RF signal carries the error signal; the transmitter receives the second RF signal, and uses the error signal to correct the transmitted RF signal.
  • Sampling the received RF signal does not require adding additional devices. It can be processed using the receiver's inherent receive channel, reducing cost and power consumption.
  • the feedback IQ signal is processed by the receive channel. Therefore, the transmitter is implemented. At the same time as the error correction, the correction of the error introduced by the receiver receiving channel can be realized.
  • the error correction system includes:
  • the transmitter is configured to transmit the first radio frequency signal to the receiver.
  • the transmitter's traffic processing and modulator generate the original IQ signal, which is sent directly to the receiver through the transmit channel.
  • the receiver is configured to receive the first radio frequency signal; sample the first radio frequency signal to obtain sampling data, and obtain a feedback IQ signal from the sampled data; use the feedback IQ signal to perform error calculation to obtain an error signal; and send the second radio frequency signal to the transmitter
  • the second RF signal carries an error signal.
  • the transmitter is further configured to receive the second RF signal and use the error signal to correct the transmitted RF signal.
  • the feedback IQ signal is directly used for error calculation, so the correction effect is slightly poor, and the optimal effect is not achieved, but the amount of data between the transmitter and the receiver is small.
  • the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is better.
  • Implementation Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a hard disk or optical disk, etc. includes instructions for causing a device to perform the methods of various embodiments of the present invention.

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Abstract

本发明的实施例公开了一种微波信号的校正方法、装置和***，涉及微波通信技术领域，解决了现有技术中微波信号的校正需要增加额外的取样电路、下变频器，带通滤波器和ADC等器件的问题。本发明实施例中，接收机对来自发射机的射频信号进行采样，得到采样数据，从所述采样数据中得到反馈IQ信号，利用该反馈IQ信号进行误差校正。对接收的射频信号进行采样处理不需要增加额外的器件，可以使用接收机固有的接收通道进行处理，降低了成本和功耗。

Description

一种微波信号的校正方法、 装置和*** 技术领域
本发明涉及微波通信技术领域， 尤其涉及一种微波信号的校正方法、 装 置和***。
背景技术
微波技术直接通过空间传送数据， 不需要铺设光纤或是电缆等， 在城市、 偏远地区或者特殊地区 （例如河流等）具有明显的工程优势； 微波技术组网 方便， 使用方式灵活， 业务开通时间短； 随着微波技术的发展， 微波设备的 成本逐渐降低， 因此， 微波技术的使用越来越广泛。
微波技术中， 有一些现象影响到了微波信号的传输质量， 例如， 放大器 的非线性导致信号失真， 通道滤波器的带内波动导致射频通道的增益不平衡 等等， 为了提高微波信号的传输质量， 需要提高收发信机的信噪比， 通常采 用误差校正的方法解决这一问题。
现有的误差校正方法为： 提取发射机的部分发射信号， 进行下变频、 带 通滤波以及模数转换器（Analog to Digital Converter, ADC )采样处理后得到 反馈 IQ信号， 误差计算模块根据原始 IQ信号和反馈 IQ信号计算出发射通道的 误差信号， 根据误差信号对发射的数据进行预失真处理， 然后通过发射通道 发射。
现有的误差校正技术至少存在如下缺点： 需要增加取样电路、 下变频器， 带通滤波器和 ADC等器件， 直接增加了***成本和功耗， 并且只能校正发射 机的误差， 不能校正接收机引入的误差。
发明内容
本发明实施例提供一种微波信号的校正方法、 装置和***， 不需要增加 取样电路、下变频器， 带通滤波器和 ADC等器件， 即可实现微波信号的校正。
为达到上述目的， 本发明的实施例采用如下技术方案： 一种微波信号的校正方法， 包括：
接收来自发射机的第一射频信号， 所述第一射频信号的微波帧中携带有 原始 IQ信号；
对所述第一射频信号进行采样， 得到采样数据， 从所述采样数据中得到 反馈 IQ信号；
对所述采样数据进行解调， 恢复出微波帧， 得到所述原始 IQ信号； 利用所述原始 IQ信号和所述反馈 IQ信号进行误差计算得到误差信号； 利用所述误差信号进行校正。
一种微波信号的校正方法， 包括：
接收来自发射机的第一射频信号；
对所述第一射频信号进行采样， 得到采样数据， 从所述采样数据中得到 反馈 IQ信号；
发送第二射频信号到所述发射机， 所述第二射频信号携带有所述反馈 IQ 信号， 所述发射机利用所述反馈 IQ信号进行校正。
一种微波信号的校正方法， 包括：
接收来自发射机的第一射频信号；
对所述第一射频信号进行采样， 得到采样数据， 从所述采样数据中得到 反馈 IQ信号；
利用所述反馈 IQ信号进行误差计算得到误差信号；
发送第二射频信号到所述发射机， 所述第二射频信号携带有所述误差信 号， 所述发射机利用所述误差信号对发射的射频信号进行校正。
一种微波信号的校正装置， 包括：
接收模块， 用于接收来自发射机的第一射频信号， 所述第一射频信号的 微波帧中携带有原始 IQ信号；
获取模块， 用于对所述第一射频信号进行采样， 得到采样数据， 从所述 采样数据中得到反馈 IQ信号； 还用于对所述采样数据进行解调， 恢复出微波 帧， 得到所述原始 IQ信号；
误差计算模块， 用于利用所述原始 IQ信号和所述反馈 IQ信号进行误差 计算得到误差信号；
校正模块， 用于利用所述误差信号进行校正。
一种微波信号的校正装置， 包括：
接收模块， 用于接收来自发射机的第一射频信号；
获取模块， 用于对所述第一射频信号进行采样， 得到采样数据， 从所述 采样数据中得到反馈 IQ信号；
发送模块， 用于发送第二射频信号到所述发射机， 所述第二射频信号携 带有所述反馈 IQ信号， 所述发射机利用所述反馈 IQ信号进行校正。
一种微波信号的校正装置， 包括：
接收模块， 用于接收来自发射机的第一射频信号；
获取模块， 用于对所述第一射频信号进行采样， 得到采样数据， 从所述 采样数据中得到反馈 IQ信号；
误差计算模块， 用于利用所述反馈 IQ信号进行误差计算得到误差信号； 发送模块， 用于发送第二射频信号到所述发射机， 所述第二射频信号携 带有所述误差信号， 所述发射机利用所述误差信号对发射的射频信号进行校 正。
一种微波信号的校正***， 包括：
发射机， 用于发送第一射频信号到接收机， 所述第一射频信号的微波帧 中携带有原始 IQ信号；
所述接收机， 用于接收所述第一射频信号； 对所述第一射频信号进行采 样， 得到采样数据， 从所述采样数据中得到反馈 IQ信号； 对所述采样数据进 行解调， 恢复出微波帧， 得到所述原始 IQ信号； 利用所述原始 IQ信号和所 述反馈 IQ信号进行误差计算得到误差信号； 利用所述误差信号进行校正。
一种微波信号的校正***， 包括： 发射机， 用于发送第一射频信号到接收机；
所述接收机， 用于接收所述第一射频信号； 对所述第一射频信号进行采 样， 得到采样数据， 从所述采样数据中得到反馈 IQ信号； 发送第二射频信号 到所述发射机， 所述第二射频信号携带有所述反馈 IQ信号；
所述发射机还用于接收所述第二射频信号， 利用所述反馈 IQ信号进行校 正。
一种微波信号的校正***， 包括：
发射机， 用于发送第一射频信号到接收机；
所述接收机， 用于接收所述第一射频信号； 对所述第一射频信号进行采 样， 得到采样数据， 从所述采样数据中得到反馈 IQ信号； 利用所述反馈 IQ 信号进行误差计算得到误差信号； 发送第二射频信号到所述发射机， 所述第 二射频信号携带有所述误差信号；
所述发射机还用于接收所述第二射频信号， 利用所述误差信号对发射的 射频信号进行校正。
本发明实施例提供的微波信号的校正方法、 装置和***， 接收机对来自 发射机的射频信号进行采样， 得到采样数据， 从所述采样数据中得到反馈 IQ 信号， 利用该反馈 IQ信号进行误差校正。 对接收的射频信号进行采样处理不 需要增加额外的器件， 可以使用接收机固有的接收通道进行处理， 降低了成 本和功耗， 反馈 IQ信号为接收通道处理后的信号， 在实现发射机误差校正的 同时， 可以实现接收机接收通道引入误差的校正。
附图说明 施例中所需要使用的附图作筒单地介绍， 显而易见地， 下面描述中的附图仅 仅是本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性 劳动性的前提下， 还可以根据这些附图获得其他的附图。
图 1为本发明实施例中的一种误差校正方法的流程示意图； 图 2为本发明实施例中的另一种误差校正方法的流程示意图； 图 3为本发明实施例中的再一种误差校正方法的流程示意图；
图 4为本发明实施例中的再一种误差校正方法的流程示意图；
图 5为本发明实施例中的再一种误差校正方法的流程示意图；
图 6为本发明实施例中的再一种误差校正方法的流程示意图；
图 7为本发明实施例中的一种误差校正装置的结构示意图；
图 8为本发明实施例中的另一种误差校正装置的结构示意图；
图 9为本发明实施例中的再一种误差校正装置的结构示意图；
图 10为本发明实施例中的一种误差校正***的结构示意图；；
图 11为本发明实施例中的另一种误差校正***的结构示意图； 图 12为本发明实施例中的再一种误差校正***的结构示意图； 图 13为本发明实施例中的再一种误差校正***的结构示意图； 图 14为本发明实施例中的再一种误差校正***的结构示意图； 图 15为本发明实施例中的再一种误差校正***的结构示意图； 图 16为本发明实施例中的再一种误差校正***的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进行 清楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而 不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没有作 出创造性劳动前提下所获得的所有其他实施例， 都属于本发明保护的范围。 并且， 以下各实施例均为本发明的可选方案， 实施例的排列顺序及实施例的 帧号与其优选执行顺序无关。
在本发明的实施例中， 发射机发送信号到接收机， 发射机发送信号、 接 收机接收信号等过程均可能引起误差， 本发明实施例提供的微波信号的校正 方法、 装置和***用于校正该误差。 接收机发送信号到发射机产生的误差可 以使用类似的实施例进行校正， 发射机和接收机均可以同时具有发送和接收 信号的功能， 本发明实施例中， 发射机和接收机的名称仅仅是为了方便描述， 实际应用中， 发射机和接收机大多是收发信机的一部分， 因此同时具有发送 和接收信号的功能。
在本发明的实施例中， 发射机首先产生原始 IQ信号， 可以由业务处理与 调制器模块实现， 然后通过发射通道的数模转换、 上变频等处理后得到射频 信号， 并将该射频信号发送到接收机； 接收机接收来自发射机的射频信号， 通过接收通道的下变频、 模数转换等处理后得到用于解调的采样信号， 从中 提取一部分作为反馈 IQ信号。 原始 IQ信号经过发射机的发射通道、 接收机 的接收通道等的处理后已经发生变化， 增加了 IQ信号幅相不平衡误差、 通道 增益误差和非线性误差等， 从而导致***解调性能恶化。 此时根据反馈 IQ信 号进行误差校正， 通过对发射机发射的射频信号或者接收机接收到的射频信 号进行校正， 最大程度减小收发信机模拟通道带来的误差， 从而使得***的 解调性能达到最佳。
在一些实施例中， 发射机将原始 IQ信号加入微波帧中作为数据传送到接 收机，接收机可以从微波帧中提取出该原始 IQ信号，接收机提取出的原始 IQ 信号和发射机加入微波帧中的原始 IQ信号相同。
实施例 1
如图 1所示， 误差校正方法包括：
S100、 接收来自发射机的第一射频信号， 第一射频信号的微波帧中携带 有原始 IQ信号；
S102、 对第一射频信号进行采样， 得到采样数据， 从采样数据中得到反 馈 IQ信号；
S104、 对采样数据进行解调， 恢复出微波帧， 得到原始 IQ信号；
S106、 利用原始 IQ信号和反馈 IQ信号进行误差计算得到误差信号；
S108、 利用误差信号进行校正。 本实施例中， 接收来自发射机的第一射频信号， 第一射频信号的微波帧 中携带有原始 IQ信号； 对第一射频信号进行采样， 得到采样数据， 从采样数 据中得到反馈 IQ信号； 对采样数据进行解调， 恢复出微波帧， 得到原始 IQ 信号； 利用原始 IQ信号和反馈 IQ信号进行误差计算得到误差信号； 利用误 差信号进行校正。 与现有技术相比， 对接收的射频信号进行采样处理不需要 增加额外的器件， 可以使用接收机固有的接收通道进行处理， 降低了成本和 功耗，反馈 IQ信号为接收通道处理后的信号，在实现发射机误差校正的同时， 可以实现接收机接收通道引入误差的校正。
实施例 2
如图 2所示， 误差校正方法包括：
S200、 接收来自发射机的第一射频信号， 第一射频信号的微波帧中携带 有原始 IQ信号；
发射机产生原始 IQ信号， 分成两路， 一路原始 IQ信号被提取到微波帧 中， 经过业务处理与调制器的处理后通过发射通道发送到接收机， 使得接收 机接收到的射频信号的微波帧中携带有原始 IQ信号； 另一路原始 IQ信号通 过发射通道的数模转换、 上变频等处理后得到射频信号， 发送到接收机。
S202、 对第一射频信号进行采样， 得到采样数据， 从采样数据中得到反 馈 IQ信号；
通过接收通道的下变频、 模数转换等处理得到采样数据， 从采样数据中 得到反馈 IQ信号， 可以直接提取一部分采样数据作为反馈 IQ信号。
S204、 对采样数据进行解调， 恢复出微波帧， 得到原始 IQ信号； 对采样数据的解调， 可以恢复出微波帧， 从而得到保存在微波帧的原始 IQ信号， 可以由解调器与业务处理模块实现。
S206、 利用原始 IQ信号和反馈 IQ信号进行误差计算得到误差信号； S208、 利用误差信号对接收到的射频信号进行校正。
误差校正可以由解调器与业务处理模块实现。 本实施例中， 利用误差信号直接对接收到的射频信号进行校正， 从而改 善了接收机的接收性能。
实施例 3
如图 3所示， 误差校正方法包括：
S300、 接收来自发射机的第一射频信号， 第一射频信号的微波帧中携带 有原始 IQ信号；
发射机产生原始 IQ信号， 分成两路， 一路原始 IQ信号被提取到微波帧 中， 经过业务处理与调制器的处理后通过发射通道发送到接收机， 使得接收 机接收到的射频信号的微波帧中携带有原始 IQ信号； 另一路原始 IQ信号通 过发射通道的数模转换、 上变频等处理后得到射频信号， 发送到接收机。
S302、 对第一射频信号进行采样， 得到采样数据， 从采样数据中得到反 馈 IQ信号；
通过接收通道的下变频、 模数转换等处理后得到反馈 IQ信号。
S304、 对采样数据进行解调， 恢复出微波帧， 得到原始 IQ信号； 通过解调器与业务处理模块对采样数据的解调， 可以恢复出微波帧， 从 而得到保存在微波帧的原始 IQ信号。
S306、 利用原始 IQ信号和反馈 IQ信号进行误差计算得到误差信号； S308、 发送第二射频信号到发射机， 第二射频信号的微波帧中携带有误 差信号， 发射机利用误差信号对发射的射频信号进行校正。
发射机的业务处理与调制器模块可以利用误差信号对发射的射频信号进 行校正， 此为现有技术， 在此不再赘述。
本实施例中， 将误差信号发送至发射机， 发射机利用该误差信号对发射 的射频信号进行校正， 可以提高发射机的发射性能， 同时也可以提高接收机 的接收性能。
实施例 4
如图 4所示， 误差校正方法包括： S400、 接收来自发射机的第一射频信号；
S402、 对第一射频信号进行采样， 得到采样数据， 从采样数据中得到反 馈 IQ信号；
S404、 发送第二射频信号到发射机， 第二射频信号携带有反馈 IQ信号， 发射机利用反馈 IQ信号进行校正。
本实施例中， 接收来自发射机的第一射频信号； 对第一射频信号进行采 样， 得到采样数据， 从采样数据中得到反馈 IQ信号； 发送第二射频信号到发 射机， 第二射频信号携带有反馈 IQ信号， 发射机利用反馈 IQ信号进行校正。 对接收的射频信号进行采样处理不需要增加额外的器件， 可以使用接收机固 有的接收通道进行处理， 降低了成本和功耗， 反馈 IQ信号为接收通道处理后 的信号， 因此， 在实现发射机误差校正的同时， 可以实现接收机接收通道引 入误差的校正。
实施例 5
如图 5所示， 误差校正方法包括：
S500、 接收来自发射机的第一射频信号；
发射机的业务处理与调制器产生原始 IQ信号， 分成两路， 一路原始 IQ 信号被提取到本地； 另一路原始 IQ信号直接通过发射通道发送到接收机， 即 通过发射通道的数模转换、 上变频等处理后得到射频信号， 发送到接收机。。
S502、 对第一射频信号进行采样， 得到采样数据， 从采样数据中得到反 馈 IQ信号；
S504、 发送第二射频信号到发射机， 第二射频信号携带有反馈 IQ信号， 发射机利用原始 IQ信号和反馈 IQ信号进行误差计算得到误差信号， 发射机 利用误差信号对发射的射频信号进行校正。
发射机利用反馈 IQ信号和本地的原始 IQ信号进行误差计算。
本实施例中， 将反馈 IQ信号发送至发射机， 发射机利用原始 IQ信号和 反馈 IQ信号进行误差计算得到误差信号， 利用该误差信号对发射的射频信号 进行校正， 可以提高发射机的发射性能， 同时也可以提高接收机的接收性能。 实施例 6 (不携带原始）
如图 6所示， 误差校正方法包括：
S600、 接收来自发射机的第一射频信号；
发射机的业务处理与调制器产生原始 IQ信号，通过发射通道的数模转换、 上变频等处理后得到射频信号， 发送到接收机。
S602、 对第一射频信号进行采样， 得到采样数据， 从采样数据中得到反 馈 IQ信号；
S604、 利用反馈 IQ信号进行误差计算得到误差信号；
本实施例中， 直接使用反馈 IQ信号进行误差计算得到误差信号， 例如根 据时域均衡进行计算， 因为仅根据反馈 IQ信号进行计算， 所以校正的效果可 能略差， 但是发射机与接收机之间传递的信息量会相应减少。
S606、 发送第二射频信号到发射机， 第二射频信号携带有误差信号， 发 射机利用误差信号对发射的射频信号进行校正。
本实施例中， 接收来自发射机的第一射频信号； 对第一射频信号进行采 样， 得到采样数据， 从采样数据中得到反馈 IQ信号； 利用反馈 IQ信号进行 误差计算得到误差信号； 发送第二射频信号到发射机， 第二射频信号携带有 误差信号， 发射机利用误差信号对发射的射频信号进行校正。 对接收的射频 信号进行采样处理不需要增加额外的器件， 可以使用接收机固有的接收通道 进行处理， 降低了成本和功耗，反馈 IQ信号为接收通道处理后的信号， 因此， 在实现发射机误差校正的同时， 可以实现接收机接收通道引入误差的校正。
实施例 7
如图 7所示， 误差校正装置包括：
接收模块 700, 用于接收来自发射机的第一射频信号， 第一射频信号的微 波帧中携带有原始 IQ信号；
获取模块 702, 用于对第一射频信号进行采样， 得到采样数据， 从采样数 据中得到反馈 IQ信号； 还用于对采样数据进行解调， 恢复出微波帧， 得到原 始 IQ信号；
误差计算模块 704,用于利用原始 IQ信号和反馈 IQ信号进行误差计算得 到误差信号；
校正模块 706, 用于利用误差信号进行校正。
本实施例中， 接收模块接收来自发射机的第一射频信号， 第一射频信号 的微波帧中携带有原始 IQ信号； 获取模块对第一射频信号进行采样， 得到采 样数据， 从采样数据中得到反馈 IQ信号； 对采样数据进行解调， 恢复出微波 帧， 得到原始 IQ信号； 误差计算模块利用原始 IQ信号和反馈 IQ信号进行误 差计算得到误差信号； 校正模块利用误差信号进行校正。 与现有技术相比， 对接收的射频信号进行采样处理不需要增加额外的器件， 可以使用接收机固 有的接收通道进行处理， 降低了成本和功耗， 反馈 IQ信号为接收通道处理后 的信号， 因此， 在实现发射机误差校正的同时， 可以实现接收机接收通道引 入误差的校正。
实施例 8
如图 7所示， 误差校正装置包括：
接收模块 700, 用于接收来自发射机的第一射频信号， 第一射频信号的微 波帧中携带有原始 IQ信号；
发射机产生原始 IQ信号， 分成两路， 一路原始 IQ信号被提取到微波帧 中， 经过业务处理与调制器的处理后通过发射通道发送到接收机， 使得接收 机接收到的射频信号的微波帧中携带有原始 IQ信号； 另一路原始 IQ信号通 过发射通道的数模转换、 上变频等处理后得到射频信号， 发送到接收机。
获取模块 702, 用于对第一射频信号进行采样， 得到采样数据， 从采样数 据中得到反馈 IQ信号； 还用于对采样数据进行解调， 恢复出微波帧， 得到原 始 IQ信号；
通过接收通道的下变频、 模数转换等处理得到采样数据， 从采样数据中 得到反馈 IQ信号。 对采样数据的解调， 可以恢复出微波帧， 从而得到保存在 微波帧的原始 IQ信号， 可以由解调器与业务处理模块实现。
误差计算模块 704,用于利用原始 IQ信号和反馈 IQ信号进行误差计算得 到误差信号；
校正模块 706, 用于利用误差信号进行校正。
校正模块 706具体用于利用误差信号对接收到的射频信号进行校正， 可 以由解调器与业务处理模块实现。
本实施例中， 校正模块利用误差信号直接对接收到的射频信号进行校正， 从而改善了接收机的接收性能。
实施例 9
如图 7所示， 误差校正装置包括：
接收模块 700, 用于接收来自发射机的第一射频信号， 第一射频信号的微 波帧中携带有原始 IQ信号；
发射机产生原始 IQ信号， 分成两路， 一路原始 IQ信号被提取到微波帧 中， 经过业务处理与调制器的处理后通过发射通道发送到接收机， 使得接收 机接收到的射频信号的微波帧中携带有原始 IQ信号； 另一路原始 IQ信号通 过发射通道的数模转换、 上变频等处理后得到射频信号， 发送到接收机。
获取模块 702, 用于对第一射频信号进行采样， 得到采样数据， 从采样数 据中得到反馈 IQ信号； 还用于对采样数据进行解调， 恢复出微波帧， 得到原 始 IQ信号；
误差计算模块 704,用于利用原始 IQ信号和反馈 IQ信号进行误差计算得 到误差信号；
校正模块 706, 用于利用误差信号进行校正。
校正模块 706具体用于发送第二射频信号到发射机， 第二射频信号的微 波帧中携带有误差信号， 发射机利用误差信号对发射的射频信号进行校正。
本实施例中， 校正模块将误差信号发送至发射机， 发射机利用该误差信 号对发射的射频信号进行校正， 可以提高发射机的发射性能， 同时也可以提 高接收机的接收性能。
实施例 10
如图 8所示， 误差校正装置包括：
接收模块 800, 用于接收来自发射机的第一射频信号；
发射机的业务处理与调制器产生原始 IQ信号， 分成两路， 一路原始 IQ 信号被提取到本地； 另一路原始 IQ信号直接通过发射通道发送到接收机， 即 通过发射通道的数模转换、 上变频等处理后得到射频信号， 发送到接收机。
获取模块 802, 用于对第一射频信号进行采样， 得到采样数据， 从采样数 据中得到反馈 IQ信号；
发送模块 804, 用于发送第二射频信号到发射机， 第二射频信号携带有反 馈 IQ信号， 发射机利用反馈 IQ信号进行校正。
本实施例中， 发射机利用本地的原始 IQ信号和反馈 IQ信号进行误差计 算得到误差信号， 发射机利用误差信号对发射的射频信号进行校正。
本实施例中， 接收模块接收来自发射机的第一射频信号； 获取模块对第 一射频信号进行采样， 得到采样数据， 从采样数据中得到反馈 IQ信号； 发送 模块发送第二射频信号到发射机， 第二射频信号携带有反馈 IQ信号， 发射机 利用反馈 IQ信号进行校正。 对接收的射频信号进行采样处理不需要增加额外 的器件， 可以使用接收机固有的接收通道进行处理， 降低了成本和功耗， 反 馈 IQ信号为接收通道处理后的信号， 因此， 在实现发射机误差校正的同时， 可以实现接收机接收通道引入误差的校正。
实施例 11
如图 9所示， 误差校正装置包括：
接收模块 900, 用于接收来自发射机的第一射频信号；
发射机的业务处理与调制器产生原始 IQ信号，通过发射通道的数模转换、 上变频等处理后得到射频信号， 发送到接收机。 获取模块 902, 用于对第一射频信号进行采样， 得到采样数据， 从采样数 据中得到反馈 IQ信号；
误差计算模块 904, 用于利用反馈 IQ信号进行误差计算得到误差信号； 本实施例中， 直接使用反馈 IQ信号进行误差计算得到误差信号， 例如根 据时域均衡进行计算， 因为仅根据反馈 IQ信号进行计算， 所以校正的效果可 能略差， 但是发射机与接收机之间传递的信息量会相应减少。
发送模块 906, 用于发送第二射频信号到发射机， 第二射频信号携带有误 差信号， 发射机利用误差信号对发射的射频信号进行校正。
发射机利用反馈 IQ信号和本地的原始 IQ信号进行误差计算。
本实施例中， 接收模块接收来自发射机的第一射频信号； 获取模块对第 一射频信号进行采样， 得到采样数据， 从采样数据中得到反馈 IQ信号； 误差 计算模块利用反馈 IQ信号进行误差计算得到误差信号； 发送模块发送第二射 频信号到发射机， 第二射频信号携带有误差信号， 发射机利用误差信号对发 射的射频信号进行校正。 对接收的射频信号进行采样处理不需要增加额外的 器件， 可以使用接收机固有的接收通道进行处理， 降低了成本和功耗， 反馈 IQ信号为接收通道处理后的信号， 因此， 在实现发射机误差校正的同时， 可 以实现接收机接收通道 I入误差的校正。
实施例 12
如图 10所示， 误差校正***包括：
发射机 1000, 用于发送第一射频信号到接收机 1002, 第一射频信号的微 波帧中携带有原始 IQ信号；
接收机 1002, 用于接收第一射频信号； 对第一射频信号进行采样， 得到 采样数据， 从采样数据中得到反馈 IQ信号； 对采样数据进行解调， 恢复出微 波帧， 得到原始 IQ信号； 利用原始 IQ信号和反馈 IQ信号进行误差计算得到 误差信号； 利用误差信号进行校正。
本实施例中， 发射机发送第一射频信号到接收机， 第一射频信号的微波 帧中携带有原始 IQ信号； 接收机接收第一射频信号； 对第一射频信号进行采 样， 得到采样数据， 从采样数据中得到反馈 IQ信号； 对采样数据进行解调， 恢复出微波帧， 得到原始 IQ信号； 利用原始 IQ信号和反馈 IQ信号进行误差 计算得到误差信号； 利用误差信号进行校正。 接收机对接收的射频信号进行 采样处理不需要增加额外的器件， 可以使用接收机固有的接收通道进行处理， 降低了成本和功耗， 反馈 IQ信号为接收通道处理后的信号， 因此， 在实现发 射机误差校正的同时， 可以实现接收机接收通道引入误差的校正。
实施例 13
如图 11所示， 误差校正***包括：
发射机和接收机；
发射机用于发送第一射频信号到接收机， 第一射频信号的微波帧中携带 有原始 IQ信号；
发射机的业务处理与调制器产生原始 IQ信号， 分成两路， 一路原始 IQ 信号被提取到微波帧中， 经过业务处理与调制器的处理后通过发射通道发送 到接收机； 另一路原始 IQ信号直接通过发射通道发送到接收机。
接收机用于接收第一射频信号； 对第一射频信号进行采样， 得到采样数 据， 从采样数据中得到反馈 IQ信号； 对采样数据进行解调， 恢复出微波帧， 得到原始 IQ信号； 利用原始 IQ信号和反馈 IQ信号进行误差计算得到误差信 号； 利用误差信号进行校正。
接收机的接收通道接收来自发射机的第一射频信号， 通过接收通道的下 变频、 模数转换等处理后得到反馈 IQ信号， 通过解调器与业务处理模块对采 样数据的解调， 可以恢复出微波帧， 从而得到保存在微波帧的原始 IQ信号， 利用原始 IQ信号和反馈 IQ信号进行误差计算得到误差信号， 解调器与业务 处理模块利用该误差信号直接对接收的射频信号进行误差校正。 一般情况下， 误差计算要求原始 IQ信号和反馈 IQ信号相对应， 即反馈 IQ信号为原始 IQ 信号经过发射机的发射通道、 接收机的接收通道等的处理后得到的 IQ信号， 当然不对应的话也能进行误差校正， 只是校正的效果达不到最佳。 利用得到的误差信号对接收的射频信号进行误差校正， 当温度等发生变 化， 发射机的发射通道、 接收机的接收通道等的处理所产生的误差可能变化， 此时， 需要重新利用本实施例的方法得到新的误差信号， 然后利用新的误差 信号对接收的射频信号进行误差校正， 其它实施例也是类似的。
本实施例中， 接收机利用误差信号直接对接收到的射频信号进行校正， 从而改善了接收机的接收性能。
实施例 14
如图 12所示， 误差校正***包括：
发射机和接收机；
发射机用于发送第一射频信号到接收机， 第一射频信号的微波帧中携带 有原始 IQ信号；
发射机的业务处理与调制器产生原始 IQ信号， 分成两路， 一路原始 IQ 信号被提取到微波帧中， 经过业务处理与调制器的处理后通过发射通道发送 到接收机； 另一路原始 IQ信号直接通过发射通道发送到接收机。
接收机用于接收第一射频信号； 对第一射频信号进行采样， 得到采样数 据， 从采样数据中得到反馈 IQ信号； 对采样数据进行解调， 恢复出微波帧， 得到原始 IQ信号； 利用原始 IQ信号和反馈 IQ信号进行误差计算得到误差信 号； 利用误差信号进行校正。
接收机的接收通道接收来自发射机的第一射频信号， 通过接收通道的下 变频、 模数转换等处理后得到反馈 IQ信号， 通过解调器与业务处理模块对采 样数据的解调， 可以恢复出微波帧， 从而得到保存在微波帧的原始 IQ信号， 利用原始 IQ信号和反馈 IQ信号进行误差计算得到误差信号， 接收机发送第 二射频信号到发射机， 第二射频信号的微波帧中携带有该误差信号， 发射机 利用该误差信号对发射的射频信号进行校正。
本实施例中， 将误差信号发送至发射机， 发射机利用该误差信号对发射 的射频信号进行校正， 可以提高发射机的发射性能， 同时也可以提高接收机 的接收性能。
实施例 15
如图 13所示， 误差校正***包括：
发射机 1300, 用于发送第一射频信号到接收机 1102;
接收机 1302, 用于接收第一射频信号； 对第一射频信号进行采样， 得到 采样数据，从采样数据中得到反馈 IQ信号；发送第二射频信号到发射机 1300, 第二射频信号携带有反馈 IQ信号；
发射机 1300还用于接收第二射频信号， 利用反馈 IQ信号进行校正。 发射机发送第一射频信号到接收机； 接收机接收第一射频信号； 对第一 射频信号进行采样， 得到采样数据， 从采样数据中得到反馈 IQ信号； 发送第 二射频信号到发射机， 第二射频信号携带有反馈 IQ信号； 发射机还接收第二 射频信号， 利用反馈 IQ信号进行校正。 对接收的射频信号进行采样处理不需 要增加额外的器件， 可以使用接收机固有的接收通道进行处理， 降低了成本 和功耗， 反馈 IQ信号为接收通道处理后的信号， 因此， 在实现发射机误差校 正的同时， 可以实现接收机接收通道 ^ I入误差的校正。
实施例 16
如图 14所示， 误差校正***包括：
发射机和接收机。
发射机用于发送第一射频信号到接收机。
发射机的业务处理与调制器产生原始 IQ信号， 分成两路， 一路原始 IQ 信号被提取到本地； 另一路原始 IQ信号直接通过发射通道发送到接收机。
接收机用于接收第一射频信号； 对第一射频信号进行采样， 得到采样数 据， 从采样数据中得到反馈 IQ信号； 发送第二射频信号到发射机， 第二射频 信号携带有反馈 IQ信号。
第二射频信号的微波帧中有反馈 IQ信号， 发射机可以提取出该反馈 IQ 信号。
发射机还用于接收第二射频信号， 利用反馈 IQ信号进行校正。
发射机提取出反馈 IQ信号，利用本地的原始 IQ信号以及该反馈 IQ信号 进行误差计算得到误差信号， 并且利用该误差信号对发射的射频信号进行校 正。
本实施例中， 将反馈 IQ信号发送至发射机， 发射机利用原始 IQ信号和 反馈 IQ信号进行误差计算得到误差信号， 利用该误差信号对发射的射频信号 进行校正， 可以提高发射机的发射性能， 同时也可以提高接收机的接收性能。
实施例 17
如图 15所示， 误差校正***包括：
发射机 1500, 用于发送第一射频信号到接收机 1502;
接收机 1502, 用于接收第一射频信号； 对第一射频信号进行采样， 得到 采样数据， 从采样数据中得到反馈 IQ信号； 利用反馈 IQ信号进行误差计算 得到误差信号； 发送第二射频信号到发射机 1500, 第二射频信号携带有误差 信号；
发射机 1500还用于接收第二射频信号， 利用误差信号对发射的射频信号 进行校正。
本实施例中， 发射机发送第一射频信号到接收机； 接收机接收第一射频 信号； 对第一射频信号进行采样， 得到采样数据， 从采样数据中得到反馈 IQ 信号； 利用反馈 IQ信号进行误差计算得到误差信号； 发送第二射频信号到发 射机， 第二射频信号携带有误差信号； 发射机接收第二射频信号， 利用误差 信号对发射的射频信号进行校正。 对接收的射频信号进行采样处理不需要增 加额外的器件， 可以使用接收机固有的接收通道进行处理， 降低了成本和功 耗， 反馈 IQ信号为接收通道处理后的信号， 因此， 在实现发射机误差校正的 同时， 可以实现接收机接收通道引入误差的校正。 如图 16所示， 误差校正***包括：
发射机和接收机。
发射机用于发送第一射频信号到接收机。
发射机的业务处理与调制器产生原始 IQ信号， 该原始 IQ信号直接通过 发射通道发送到接收机。
接收机用于接收第一射频信号； 对第一射频信号进行采样， 得到采样数 据， 从采样数据中得到反馈 IQ信号； 利用反馈 IQ信号进行误差计算得到误 差信号； 发送第二射频信号到发射机， 第二射频信号携带有误差信号。
发射机还用于接收第二射频信号， 利用误差信号对发射的射频信号进行 校正。
本实施例中，直接利用反馈 IQ信号进行误差计算，所以其校正效果略差， 达不到最佳效果， 但是发射机与接收机之间的数据量较小。
通过以上的实施方式的描述， 所属领域的技术人员可以清楚地了解到本 发明可借助软件加必需的通用硬件平台的方式来实现， 当然也可以通过硬件 方式， 但很多情况下前者是更佳的实施方式。 基于这样的理解， 本发明的技 术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现 出来， 该计算机软件产品存储在可读取的存储介质中， 如计算机的软盘， 硬 盘或光盘等， 包括若干指令用以使得一台设备执行本发明各个实施例的方法。
以上， 仅为本发明的具体实施方式， 但本发明的保护范围并不局限于此， 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可轻易想到变 化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明的保护范围应 以权利要求的保护范围为准。

Claims

权利 要求 书
1、 一种微波信号的校正方法， 其特征在于， 包括：
接收来自发射机的第一射频信号， 所述第一射频信号的微波帧中携带有原 始 IQ信号；
对所述第一射频信号进行采样， 得到采样数据， 从所述采样数据中得到反 馈 IQ信号；
对所述采样数据进行解调， 恢复出微波帧， 得到所述原始 IQ信号； 利用所述原始 IQ信号和所述反馈 IQ信号进行误差计算得到误差信号； 利用所述误差信号进行校正。
2、 根据权利要求 1所述的方法， 所述利用所述误差信号进行校正， 包括： 利用所述误差信号对接收到的射频信号进行校正。
3、 根据权利要求 1所述的方法， 所述利用所述误差信号进行校正， 包括： 发送第二射频信号到所述发射机， 所述第二射频信号的微波帧中携带有所 述误差信号， 所述发射机利用所述误差信号对发射的射频信号进行校正。
4、 一种微波信号的校正方法， 其特征在于， 包括：
接收来自发射机的第一射频信号；
对所述第一射频信号进行采样， 得到采样数据， 从所述采样数据中得到反 馈 IQ信号；
发送第二射频信号到所述发射机， 所述第二射频信号携带有所述反馈 IQ信 号， 所述发射机利用所述反馈 IQ信号进行校正。
5、根据权利要求 4所述的方法， 其特征在于， 所述发射机利用所述反馈 IQ 信号进行校正具体包括：
所述发射机利用原始 IQ信号和所述反馈 IQ信号进行误差计算得到误差信 号；
所述发射机利用所述误差信号对发射的射频信号进行校正。
6、 一种微波信号的校正方法， 其特征在于， 包括： 接收来自发射机的第一射频信号；
对所述第一射频信号进行采样， 得到采样数据， 从所述采样数据中得到反 馈 IQ信号；
利用所述反馈 IQ信号进行误差计算得到误差信号；
发送第二射频信号到所述发射机， 所述第二射频信号携带有所述误差信号， 所述发射机利用所述误差信号对发射的射频信号进行校正。
7、 一种微波信号的校正装置， 其特征在于， 包括：
接收模块， 用于接收来自发射机的第一射频信号， 所述第一射频信号的微 波帧中携带有原始 IQ信号；
获取模块， 用于对所述第一射频信号进行采样， 得到采样数据， 从所述采 样数据中得到反馈 IQ信号； 还用于对所述采样数据进行解调， 恢复出微波帧， 得到所述原始 IQ信号；
误差计算模块， 用于利用所述原始 IQ信号和所述反馈 IQ信号进行误差计 算得到误差信号；
校正模块， 用于利用所述误差信号进行校正。
8、 根据权利要求 7所述的装置， 所述校正模块具体用于利用所述误差信号 对接收到的射频信号进行校正。
9、 根据权利要求 7所述的装置， 所述校正模块具体用于发送第二射频信号 到所述发射机， 所述第二射频信号的微波帧中携带有所述误差信号， 所述发射 机利用所述误差信号对发射的射频信号进行校正。
10、 一种微波信号的校正装置， 其特征在于， 包括：
接收模块， 用于接收来自发射机的第一射频信号；
获取模块， 用于对所述第一射频信号进行采样， 得到采样数据， 从所述采 样数据中得到反馈 IQ信号；
发送模块， 用于发送第二射频信号到所述发射机， 所述第二射频信号携带 有所述反馈 IQ信号， 所述发射机利用所述反馈 IQ信号进行校正。
11、 一种微波信号的校正装置， 其特征在于， 包括：
接收模块， 用于接收来自发射机的第一射频信号；
获取模块， 用于对所述第一射频信号进行采样， 得到采样数据， 从所述采 样数据中得到反馈 IQ信号；
误差计算模块， 用于利用所述反馈 IQ信号进行误差计算得到误差信号； 发送模块， 用于发送第二射频信号到所述发射机， 所述第二射频信号携带 有所述误差信号， 所述发射机利用所述误差信号对发射的射频信号进行校正。
12、 一种微波信号的校正***， 其特征在于， 包括：
发射机， 用于发送第一射频信号到接收机， 所述第一射频信号的微波帧中 携带有原始 IQ信号；
所述接收机， 用于接收所述第一射频信号； 对所述第一射频信号进行采样， 得到采样数据，从所述采样数据中得到反馈 IQ信号；对所述采样数据进行解调， 恢复出微波帧， 得到所述原始 IQ信号； 利用所述原始 IQ信号和所述反馈 IQ信 号进行误差计算得到误差信号； 利用所述误差信号进行校正。
13、 一种微波信号的校正***， 其特征在于， 包括：
发射机， 用于发送第一射频信号到接收机；
所述接收机， 用于接收所述第一射频信号； 对所述第一射频信号进行采样， 得到采样数据， 从所述采样数据中得到反馈 IQ信号； 发送第二射频信号到所述 发射机， 所述第二射频信号携带有所述反馈 IQ信号；
所述发射机还用于接收所述第二射频信号，利用所述反馈 IQ信号进行校正。
14、 一种微波信号的校正***， 其特征在于， 包括：
发射机， 用于发送第一射频信号到接收机；
所述接收机， 用于接收所述第一射频信号； 对所述第一射频信号进行采样， 得到采样数据， 从所述采样数据中得到反馈 IQ信号； 利用所述反馈 IQ信号进 行误差计算得到误差信号； 发送第二射频信号到所述发射机， 所述第二射频信 号携带有所述误差信号； 所述发射机还用于接收所述第二射频信号， 利用所述误差信号对发射的射 频信号进行校正。
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US8824589B2 (en) 2014-09-02
US20120014472A1 (en) 2012-01-19
RU2011131781A (ru) 2013-12-20
CN102986181B (zh) 2015-07-29
EP2413553A1 (en) 2012-02-01
EP2413553A4 (en) 2012-12-26
RU2535917C2 (ru) 2014-12-20
US20110110472A1 (en) 2011-05-12

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