CN101277121A - Low-power consumption receiver capable of dynamically detecting barrage jamming signal - Google Patents
Low-power consumption receiver capable of dynamically detecting barrage jamming signal Download PDFInfo
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- CN101277121A CN101277121A CN 200810112253 CN200810112253A CN101277121A CN 101277121 A CN101277121 A CN 101277121A CN 200810112253 CN200810112253 CN 200810112253 CN 200810112253 A CN200810112253 A CN 200810112253A CN 101277121 A CN101277121 A CN 101277121A
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Abstract
The present invention relates to a low power consumption receiver which can dynamically detect the blocking interference signal and belongs to the technical field of wireless communication. The receiver comprises the following components: a radio frequency amplifier, a frequency synthesizer, a first frequency mixer, a low-pass filter, a variable gain amplifier and an analog-digital converter which are connected in sequence. The receiver also comprises a blocking interference signal detector and a system configuration regulator connected with the detector. The input end of the blocking interference signal detector can be connected with the output end of the analog-digital converter, and can be connected with the input ends and output ends of the low-pass filter and variable gain amplifier at the same time. The output end of the system configuration regulator is connected with at least one device in all devices respectively, or is connected with a plurality of receiving chains which are composed of the devices through an N-route multiplexer. The receiver presented by the invention can automatically detect the strength of the blocking interference signal and regulates the system configuration correspondingly. The receiver is leaded to work in different working modes in order to adapt different working environments.
Description
Technical field
The invention belongs to wireless communication technology field, particularly a kind of structural design of low-power consumption wireless receiver that can the detection of dynamic barrage jamming signal.
Background technology
In open wireless environment, the signal that receiver is received is made up of expectation received signal (the present invention is referred to as echo signal), interference signal and noise signal.Among the present invention, echo signal is active, and is relatively large by the power that the target transmitter of reality produces.Interference signal also is active, therefore the power of interference signal is relatively large, directly or indirectly produce by jamming transmitter (be operated in all the other transmitters in the native system of frequency range or successive bands with the target transmitter, or be operated in all transmitters with the target transmitter in the other system) with frequency range or successive bands.Noise signal is passive, is made up of electromagnetism background noise and thermal noise etc.In general, noise signal is compared with interference signal, and power is less relatively, and noise signal can be ignored, perhaps with its equivalence in interference signal.
In actual environment, the factor that influences the relative intensity between the echo signal and interference signal and noise signal in the received signal mainly contains following factor:
(1) relative intensity of the transmitting power of the transmitting power of target transmitter and jamming transmitter;
(2) difference of the relative tertiary location (as distance and bearing) between receiver and target transmitter and the jamming transmitter, communication environments (as the size and the dense degree of scattering object);
(3) ratio of the directivity of the transmitting antenna of target transmitter and jamming transmitter (gain), the ratio of the matching degree of the transmitting antenna polarization characteristic of target transmitter and jamming transmitter and the receiving polarization characteristic of receiver.
Therefore, in actual environment, in the signal that receiver is received, interference signal might be more a lot of greatly than the power of echo signal, and the present invention is called barrage jamming signal with the interference signal more powerful than echo signal.According to the difference of barrage jamming signal place channel, be divided into three kinds: co-channel interference, adjacent interference frequently and inferior adjacent frequency disturb.Be called co-channel interference with echo signal at the barrage jamming signal of same channel; Be called in the interference signal of the adjacent frequency domain channel of echo signal place channel and adjacently disturb frequently, the interference signal in the channel outside adjacent frequency domain channel claims time adjacent to disturb frequently.
Fig. 1 and Fig. 2 are the typical two kinds of generic structures of present receiver.The primary structure of a kind of Direct Conversion Receiver (zero intermediate frequency reciver) as shown in Figure 1, comprise radio frequency amplifier, frequency mixer, low pass filter and the variable gain amplifier, the analog to digital converter that link to each other successively, and the frequency synthesizer that links to each other with described frequency mixer; Its operation principle is: after radiofrequency signal is received by receiver antenna, (comprise low noise amplifier and radio frequency automatic gain controller by radio frequency amplifier, one of or the two, do not indicate in the drawings) amplify after, the local oscillation signal that produces with frequency synthesizer multiplies each other in frequency mixer, finish the conversion of radiofrequency signal to (simulation) baseband signal, after being amplified in a certain fixing power bracket by low pass filter and (base band) variable gain amplifier then, by analog to digital converter analog baseband signal is converted into baseband digital signal, gives digital signal processor (not indicating among the figure) and finish corresponding processing.
The primary structure of another kind of double conversion receiver (intermediate-frequency receiver) as shown in Figure 2, comprise radio frequency amplifier, first frequency mixer, band pass filter, second frequency mixer, low pass filter and the variable gain amplifier, the analog to digital converter that link to each other successively, and be connected the frequency synthesizer between described first frequency mixer and second frequency mixer; Its operation principle is: after radiofrequency signal is received by receiver antenna, (comprise low noise amplifier and radio frequency automatic gain controller by radio frequency amplifier, one of or the two, do not indicate in the drawings) amplify after, first local oscillation signal that produces with frequency synthesizer in first frequency mixer, multiply each other (mixing), finish the conversion of radiofrequency signal to intermediate-freuqncy signal, then by after the band pass filter, enter second frequency mixer, second local oscillation signal that produces with frequency synthesizer multiplies each other (mixing) afterwards, after being amplified in a certain fixing power bracket by baseband filter and (base band) variable gain amplifier, by analog to digital converter analog baseband signal is converted into baseband digital signal, gives digital signal processor (not indicating among the figure) and finish corresponding processing.
The dynamic range of the analog to digital converter in the receiver (ADC) is (figure place that depends on ADC) of fixing, (comprise low noise amplifier by automatic gain controller, the radio frequency automatic gain controller, the base band variable gain amplifier, and other may cause the module of signal power variations) adjust after, the received signal gross power is a basic fixed, to utilize the dynamic range of analog to digital converter (ADC) fully.When barrage jamming signal is very strong, the existence of barrage jamming signal has limited the power of echo signal in the received signal, echo signal is compared with the quantizing noise of analog to digital converter may be very faint, reduce the signal to noise ratio of system greatly, caused the demodulation echo signal that receiver can't be correct.Therefore in different wireless communication systems, the power level of barrage jamming signal is required all to have corresponding regulation, to guarantee that receiver can receive echo signal accurately.
In order to solve the problem of barrage jamming signal neutralizing target signal, traditional receiver designs according to worst case, when design is finished, system configuration (comprise hardware designs and software design, and relevant system parameter setting) just be fixed up.In other words, in the design process of traditional receiver, there is a critical value in regulation barrage jamming signal intensity, and comes design system module and system parameters according to this critical value.In actual environment, when barrage jamming signal the time greater than critical value, system's cisco unity malfunction; Have only when barrage jamming signal less than critical value the time, system just can operate as normal.
The intensity of barrage jamming signal directly influences the complexity and the power consumption of receiver, and barrage jamming signal is strong more, and the design of receiver is complicated more, and system configuration is high more, and power consumption is big more, and cost is high more.And in actual applications, the intensity of barrage jamming signal may change along with the difference of receiver location.Under many circumstances, also might there be barrage jamming signal in the signal that receiver receives; In some application scenario, the barrage jamming signal in the receiver received signal also might just occur within certain period, does not exist in all the other time periods.Therefore, under the very little or non-existent situation of barrage jamming signal in the actual environment, traditional receiver still is operated in the mode of operation of the bigger barrage jamming signal of existence, its system configuration requires to be higher than the minimalist configuration required to actual barrage jamming signal far away, promptly there is system margin, though system can work, increased the power consumption of system, wasted system resource.
Summary of the invention
The objective of the invention is for overcoming the weak point of prior art, a kind of low-power consumption receiver that can the detection of dynamic barrage jamming signal is proposed, receiver proposed by the invention can be by collecting the barrage jamming signal information in the practical radio communication environment, the mode of operation of adaptive adjustment receiver is complementary the system configuration of receiver and actual working environment.
The present invention propose first kind can the detection of dynamic barrage jamming signal low-power consumption receiver, comprising:
Radio frequency amplifier is used for radiofrequency signal is amplified or decayed;
Frequency synthesizer is used to produce local oscillated signal;
First frequency mixer is used for radiofrequency signal demodulation (being frequency spectrum shift) is baseband signal;
Low pass filter and variable gain amplifier are used for the outer interference signal of the useless band of filtering and carry out variable gain amplification or decay;
Analog to digital converter is used to finish the conversion of analog signal to digital signal;
It is characterized in that, also comprise:
The barrage jamming signal detector is used for detecting the intensity of blocking (interference) signal;
The system configuration adjuster is used for the barrage jamming signal information (as intensity, duration etc.) according to barrage jamming signal detector feedback, the mode of operation of adaptive adjustment receiver;
The annexation of each device is: described radio frequency amplifier, frequency mixer, low pass filter and variable gain amplifier, analog to digital converter link to each other successively, and described frequency synthesizer links to each other with described frequency mixer; The input of described barrage jamming signal detector links to each other with the output of analog to digital converter, the output of described barrage jamming signal detector links to each other with the input of system configuration adjuster, and the output of described system configuration adjuster links to each other with at least one device among described radio frequency amplifier, frequency mixer, low pass filter and variable gain amplifier, the analog to digital converter respectively.
The present invention propose second kind can the detection of dynamic barrage jamming signal low-power consumption receiver, comprising:
Radio frequency amplifier is used for radiofrequency signal is amplified or decayed;
Frequency synthesizer is used to produce local oscillated signal;
First frequency mixer is used for radiofrequency signal demodulation (being frequency spectrum shift) is baseband signal;
Low pass filter and variable gain amplifier are used for the outer interference signal of the useless band of filtering and carry out variable gain amplification or decay;
Analog to digital converter is used to finish the conversion of analog signal to digital signal;
It is characterized in that, also comprise:
The barrage jamming signal detector is used for detecting the intensity of blocking (interference) signal;
The system configuration adjuster is used for the barrage jamming signal information (as the intensity of interference signal, duration etc.) according to barrage jamming signal detector feedback, the mode of operation of adaptive adjustment receiver;
The annexation of each device is: described radio frequency amplifier, frequency mixer, low pass filter and variable gain amplifier, analog to digital converter link to each other successively, and described frequency synthesizer links to each other with described frequency mixer; Described barrage jamming signal detector links to each other with output with the input of described low pass filter and variable gain amplifier simultaneously, the output of described barrage jamming signal detector links to each other with the input of system configuration adjuster, and the output of described system configuration adjuster links to each other with at least one device among described radio frequency amplifier, frequency mixer, low pass filter and variable gain amplifier, the analog to digital converter respectively.
The present invention propose the third can the detection of dynamic barrage jamming signal low-power consumption receiver, comprising:
Radio frequency amplifier is used for radiofrequency signal is amplified or decayed;
Frequency synthesizer is used to produce local oscillated signal;
First frequency mixer is used for radiofrequency signal demodulation (being frequency spectrum shift) is baseband signal;
Low pass filter and variable gain amplifier are used for the outer interference signal of the useless band of filtering and carry out variable gain amplification or decay;
Analog to digital converter is used to finish the conversion of analog signal to digital signal;
It is characterized in that, also comprise:
The barrage jamming signal detector is used for detecting the intensity of blocking (interference) signal;
The system configuration adjuster is used for the barrage jamming signal information (as intensity, duration etc.) according to barrage jamming signal detector feedback, the mode of operation of adaptive adjustment receiver;
Described radio frequency amplifier, frequency mixer, low pass filter and variable gain amplifier, analog to digital converter link to each other successively, form N parallel receive link independently logically by the different running parameter of each device, each receives the some or all of device of link sharing; This N reception link all links to each other with the N path multiplexer, and the input of described barrage jamming signal detector links to each other with the output of described N path multiplexer, and the output of described barrage jamming signal detector links to each other with the input of system configuration adjuster.
Characteristics of the present invention and beneficial effect:
The receiver that the present invention proposes can detect the intensity of barrage jamming signal automatically, and Adjustment System configuration in view of the above makes operation of receiver in different mode of operations, to adapt to different operational environments.For example, when not having barrage jamming signal, receiver will be operated in the lower low-power consumption mode of system design index request:
(1) linearity of whole reception link requires lower;
(2) characteristic of filter requires lower (as the pass band of broad, the transition band of broad, higher cut-off frequency etc.);
(3) filter order requires lower;
(4) bit wide of digital signal (as the output of analog to digital converter) (i.e. the bit number of a sampled point correspondence) requires less.
Description of drawings
Fig. 1 is the theory diagram of straight Conversion Receiver (being zero intermediate frequency reciver).
Fig. 2 is the theory diagram of double conversion receiver (being intermediate-frequency receiver).
Fig. 3 is for realizing the receiver principle block diagram of block signal detector in the digital circuit territory among the present invention.
Fig. 4 is a receiver principle block diagram of realizing the block signal detector at analog circuit domain of the present invention.
There is barrage jamming signal data-transmission mode schematic diagram in Fig. 5 among the present invention.
Fig. 6 adjusts schematic diagram for the system configuration when having barrage jamming signal of the present invention.
Fig. 7 is the receiver principle block diagram that has the barrage jamming statistic gatherer of the present invention.。
Fig. 8 is the many receiver principle block diagrams that receive link that exist among the present invention.
Embodiment
The present invention proposes can the detection of dynamic barrage jamming signal low-power consumption receiver reach embodiment in conjunction with the accompanying drawings and be described in detail as follows:
For convenience, the present invention is described with the example that is improved to Direct Conversion Receiver shown in Figure 1, but the present invention is equally applicable to the improvement to double conversion receiver shown in Figure 2.
In reality realizes, the barrage jamming detector that the present invention adds on the basis of existing receiver both can realize in the digital circuit territory, as shown in Figure 3, can realize also, that as shown in Figure 4 perhaps part realizes in the digital circuit territory at analog circuit domain, part realizes at analog circuit domain; System configuration adjuster of the present invention both can realize that also can realize at analog circuit domain, perhaps part realized in the digital circuit territory in the digital circuit territory, and part realizes at analog circuit domain.The scheme that the present invention proposes is not subject to concrete implementation, promptly can be applicable to above-mentioned all implementations.
The present invention realizes first kind of receiver of barrage jamming detector in the digital circuit territory, as shown in Figure 3, comprising:
Radio frequency amplifier is used for radiofrequency signal is amplified or decayed;
Frequency synthesizer is used to produce local oscillated signal;
First frequency mixer is used for radiofrequency signal demodulation (being frequency spectrum shift) is baseband signal;
Low pass filter and variable gain amplifier are used for the outer interference signal of the useless band of filtering and carry out variable gain amplification or decay;
Analog to digital converter is used to finish the conversion of analog signal to digital signal;
It is characterized in that, also comprise:
The barrage jamming signal detector is used for detecting the intensity of blocking (interference) signal;
The system configuration adjuster is used for the barrage jamming signal information (as intensity, duration etc.) according to barrage jamming signal detector feedback, the mode of operation of adaptive adjustment receiver;
The annexation of each device is: described radio frequency amplifier, frequency mixer, low pass filter and variable gain amplifier, analog to digital converter link to each other successively, and described frequency synthesizer links to each other with described frequency mixer; The input of described barrage jamming signal detector links to each other with the output of analog to digital converter, the output of described barrage jamming signal detector links to each other with the input of system configuration adjuster, and the output of described system configuration adjuster links to each other successively with described radio frequency amplifier, frequency mixer, low pass filter and variable gain amplifier, analog to digital converter respectively.
Barrage jamming detector among Fig. 3 is realized in the digital circuit territory, promptly after digital to analog converter, by digital signal processor the digital signal of input is handled accordingly.Intensity and the difference intensity of inband signaling between the relevant information that obtain the intensity of band outer (barrage jamming) signal of barrage jamming detector by measuring received signal (comprising inband signaling and out of band signal).That its operation principle specifically describes is following (can with reference to the description of Fig. 1 to straight Conversion Receiver schematic diagram): the baseband digital signal of analog to digital converter output at first enters a barrage jamming signal detector, finish after the detection of barrage jamming signal, give follow-up digital signal processor (not indicating among the figure) again and finish corresponding processing.The testing result of barrage jamming detector is given the system configuration adjuster, the system configuration adjuster is regulated the parameter configuration of all the other modules in the receiver according to the strength information of barrage jamming signal, the mode of operation of all modules in the receiver and actual barrage jamming signal are complementary, thereby reach the reduction power consumption, save the purpose of system resource.
The receiver that second kind of barrage jamming detector of the present invention realized at analog circuit domain, as shown in Figure 4.Different for the annexation of each device with the difference of above-mentioned receiver: promptly described radio frequency amplifier, frequency mixer, low pass filter and variable gain amplifier, analog to digital converter link to each other successively, and described frequency synthesizer links to each other with described frequency mixer; Described barrage jamming signal detector links to each other with output with the input of described low pass filter and variable gain amplifier simultaneously, the output of described barrage jamming signal detector links to each other with the input of system configuration adjuster, and the output of described system configuration adjuster links to each other successively with described radio frequency amplifier, frequency mixer, low pass filter and variable gain amplifier, analog to digital converter respectively.The barrage jamming sensors work principle that analog circuit domain is realized specifically describes as follows: the barrage jamming detector pass through analog, analog signal to the input and output of low pass filter and variable gain amplifier is analyzed comparison, extract the strength information of barrage jamming signal, for example, the power of barrage jamming signal can adopt the signal power before the low pass filter to be far longer than that the signal power of (removing the gain of variable gain amplifier) is similar to after the low pass filter, and the power that the relative intensity of barrage jamming signal can adopt barrage jamming signal recently is similar to the power of the input signal of low pass filter.The testing result of barrage jamming detector is given the system configuration adjuster, the system configuration adjuster is regulated the parameter configuration of all the other modules in the receiver according to the strength information of barrage jamming signal, the mode of operation of all modules in the receiver and actual barrage jamming signal are complementary, thereby reach the reduction power consumption, save the purpose of system resource.
The connected mode of system configuration adjuster and described radio frequency amplifier, frequency mixer, low pass filter and variable gain amplifier, analog to digital converter depends on the configuration interface characteristic of each device, if necessary, the system configuration adjuster need be finished the conversion of analog signal to digital signal, and perhaps digital signal is to the conversion of analog signal.Connected mode between system configuration adjuster and the barrage jamming detector depends on the output signal characteristics of barrage jamming detector, if necessary, the system configuration adjuster need be finished the conversion of analog signal to digital signal, and perhaps digital signal is to the conversion of analog signal.
Above-mentioned receiver is that the difference by the intensity of measuring mixer output signal intensity and low-pass filter output signal obtains outer (barrage jamming) signal strength information of band.That its operation principle specifically describes is following (can with reference to the description of Fig. 1 to straight Conversion Receiver schematic diagram): after radiofrequency signal is received by receiver antenna, after amplifying by radio frequency amplifier and radio frequency automatic gain control circuit (not indicating in the drawings), the local oscillation signal that produces with frequency synthesizer multiplies each other in frequency mixer, finish the conversion of radiofrequency signal to (simulation) baseband signal, (simulation) baseband signal enters the barrage jamming detector, the barrage jamming detector is given the system configuration adjuster with testing result, the system configuration adjuster is complementary the mode of operation of all modules in the receiver and actual barrage jamming signal according to the parameter configuration of all the other modules in the strength information adjusting receiver of barrage jamming signal.
The above-mentioned two kinds of receivers of the present invention are equally applicable to the improvement to double conversion receiver shown in Figure 2.Promptly on the basis of above-mentioned two kinds of structures, also comprise the band pass filter and second frequency mixer that are connected between described first frequency mixer and low pass filter and the variable gain amplifier, the control input end of the described band pass filter and second frequency mixer links to each other with the output of described system configuration adjuster.The input of band pass filter can link to each other with the input of barrage jamming detector with output, and the barrage jamming detector extracts the relevant information of the outer interference signal of band by the input power of measurement band pass filter and the variation of power output.
In most of wireless transmitting systems, data are transmitted with the form of Frame (packet), shown in Fig. 5 (a), comprise a targeting signal part and data-signal part in the Frame, receiver partly carries out the adjustment of system configuration usually at targeting signal, shown in Fig. 5 (b), realize in the targeting signal zone that is adjusted in of system configuration, data division thereafter remains unchanged, to guarantee being correctly decoded of data division.Yet, shown in Fig. 5 (c), barrage jamming signal may occur suddenly at data division, when barrage jamming signal occurs in the data area, the adjusting of system configuration remains in the targeting signal zone and finishes, but need to keep certain system margin, even promptly guarantee in the data area, to occur suddenly barrage jamming, data division still can be correct decoding, the operational environment that this means leading part and data division exists very big different, if the mode of operation of receiver only is configured according to leading part, and does not leave system margin for block signal, data can not be by correct reception so.
Even the continual detection barrage jamming signal of barrage jamming signal detector in the wireless receiver that the present invention proposes is also in running order at data-signal partial blockage interferer signal detection device.Provide the specific embodiment of two system configuration adjusters at this:
(1) receiver is configured in targeting signal and partly adjusts, and is foundation with the intensity of targeting signal.In case detect barrage jamming signal, very fast receiver is adjusted to the higher mode of operation of power consumption, to tackle the influence of barrage jamming signal, shown in Fig. 6 (a): in Fig. 6 (a), the system configuration adjuster generally carries out the adjusting of system configuration in the targeting signal zone.When the barrage jamming signal detector detected barrage jamming in the data-signal zone, the system configuration adjuster is just regulating system configuration immediately in the data area; Among Fig. 6 (b), the system configuration adjuster only carries out the adjusting of system configuration in the targeting signal zone, and keeps certain system margin.When the barrage jamming signal detector detects barrage jamming in the data-signal zone, the system configuration adjuster does not need regulating system configuration immediately, and data still can be correctly decoded.The information of the current barrage jamming signal of collecting will be carried out the reference frame that system configuration is regulated as next targeting signal zone.
(2) adjustment of receiver configuration is not only based on current targeting signal information, but also adjust in conjunction with the statistical information of the barrage jamming signal of former frame or multiframe, as shown in Figure 7, increased a barrage jamming statistic gatherer in the present embodiment, the barrage jamming statistic gatherer is used to collect and preserve the relevant statistical information of barrage jamming signal.The system configuration adjuster is taken all factors into consideration the metrical information of barrage jamming signal detector output and the statistical information of barrage jamming statistic gatherer output is come the regulating system configuration.
Based on the historical information of nearest barrage jamming signal, the adaptive power utilization pattern that adapts with operational environment that is adjusted at of receiver.For example, if barrage jamming signal does not occur in nearest several seconds (a few frame), the system configuration adjuster will be given tacit consent to the mode of operation of receiver for there not being the low-power consumption mode of barrage jamming so.If block signal frequently occurs in nearest several seconds (a few frame), the system configuration adjuster will keep surplus for receiver so, even guarantee barrage jamming to occur in the data area, receiver still can correctly receive data, shown in Fig. 6 (b).
System configuration adjuster of the present invention can be adjusted a lot of system configuration parameters at the circuit stages level: as bias current, impedance, gain, supply power voltage etc.General objective criteria is that the Adjustment System configuration makes and do not have unnecessary surplus in the system.The combination in any of these system configuration parameters constitutes whole mode of operations of receiver, and every kind of corresponding one of mode of operation receives link.Article one, the reception link comprises all functions module among Fig. 1 (or Fig. 2), comprises the needed hardware of all functions module, software and the parameter configuration that realize this link.
Can there be a plurality of reception links in receiver in the design of module level level, and every receives corresponding certain the different wireless environment of link.May there be some proprietary feature module (band pass filter very narrow or very wide as transition band width) in different reception links, and these proprietary functional modules are at the different radio environment, and are specially designed according to certain optimum criterion; Different reception links is shared some the general functional module (as frequency mixer) of possibility also, and these general functional modules are not subjected to the influence of wireless environment; Some functional module may be closed or open to different reception links also, and as at the very strong reception link-down low noise amplifier of radiofrequency signal, the very weak reception link of radiofrequency signal is opened low noise amplifier.Receive link selector by selecting different reception links, make receiver adaptive with current wireless environment facies coupling.
Based on the metrical information of barrage jamming signal detector output or the statistical information of barrage jamming statistic gatherer output, the perhaps combination in any of these two kinds of information, receiver calculates and satisfies certain optimum reception link and link configuration parameter of regulating target (least in power-consuming as making under the prerequisite that guarantees systematic function) according to certain optimized Algorithm.Receive link selector and select the optimum reception link, the parameter of this optimum reception link of system configuration regulator configuration, thus finish the selection of receiver optimum working mode.Receive link selector and logically belong to a functional module of system configuration adjuster, but can be used as an independently functional module physically.
The third receiver that the present invention proposes, as shown in Figure 8; Receiver has the N bar to receive link, for convenience of description, adopts two reception links (N=2) to describe as an embodiment.Receive link selector (functional module that belongs to the system configuration adjuster in logic) according to the metrical information of barrage jamming signal detector output and the statistical information of barrage jamming statistic gatherer output, by the control multiplexer, come selective reception link 1 or receive link 2, the configuration parameter of this optimum reception link of system configuration regulator configuration, thus receiver can adaptively be operated in different mode of operations.For example, when not having barrage jamming signal, receiver is selected the reception link 1 of low-power consumption; When having barrage jamming signal, receiver is selected another higher relatively reception link 2 of power consumption.Selected reception link not only can satisfy the system performance index requirement, and the N bar of receiver receives the reception link of configuration minimum (power consumption minimum) in the link.
Claims (14)
1, a kind of low-power consumption receiver that can the detection of dynamic barrage jamming signal comprises:
Radio frequency amplifier is used for radiofrequency signal is amplified or decayed;
Frequency synthesizer is used to produce local oscillated signal;
First frequency mixer is used for radiofrequency signal demodulation (being frequency spectrum shift) is baseband signal;
Low pass filter and variable gain amplifier are used for the outer interference signal of the useless band of filtering and carry out variable gain amplification or decay;
Analog to digital converter is used to finish the conversion of analog signal to digital signal;
It is characterized in that, also comprise:
The barrage jamming signal detector is used for detecting the intensity of blocking (interference) signal;
The system configuration adjuster is used for the barrage jamming signal information (as intensity, duration etc.) according to barrage jamming signal detector feedback, the mode of operation of adaptive adjustment receiver;
The annexation of each device is: described radio frequency amplifier, frequency mixer, low pass filter and variable gain amplifier, analog to digital converter link to each other successively, and described frequency synthesizer links to each other with described frequency mixer; The input of described barrage jamming signal detector links to each other with the output of analog to digital converter, the output of described barrage jamming signal detector links to each other with the input of system configuration adjuster, and the output of described system configuration adjuster links to each other with at least one device among described radio frequency amplifier, frequency mixer, low pass filter and variable gain amplifier, the analog to digital converter respectively.
2, a kind of low-power consumption receiver that can the detection of dynamic barrage jamming signal comprises:
Radio frequency amplifier is used for radiofrequency signal is amplified or decayed;
Frequency synthesizer is used to produce local oscillated signal;
First frequency mixer is used for radiofrequency signal demodulation (being frequency spectrum shift) is baseband signal;
Low pass filter and variable gain amplifier are used for the outer interference signal of the useless band of filtering and carry out variable gain amplification or decay;
Analog to digital converter is used to finish the conversion of analog signal to digital signal;
It is characterized in that, also comprise:
The barrage jamming signal detector is used for detecting the intensity of blocking (interference) signal;
The system configuration adjuster is used for the barrage jamming signal information (as the intensity of interference signal, duration etc.) according to barrage jamming signal detector feedback, the mode of operation of adaptive adjustment receiver;
The annexation of each device is: described radio frequency amplifier, frequency mixer, low pass filter and variable gain amplifier, analog to digital converter link to each other successively, and described frequency synthesizer links to each other with described frequency mixer; Described barrage jamming signal detector links to each other with output with the input of described low pass filter and variable gain amplifier simultaneously, the output of described barrage jamming signal detector links to each other with the input of system configuration adjuster, and the output of described system configuration adjuster links to each other with at least one device among described radio frequency amplifier, frequency mixer, low pass filter and variable gain amplifier, the analog to digital converter respectively.
3, a kind of low-power consumption receiver that can the detection of dynamic barrage jamming signal comprises:
Radio frequency amplifier is used for radiofrequency signal is amplified or decayed;
Frequency synthesizer is used to produce local oscillated signal;
First frequency mixer is used for radiofrequency signal demodulation (being frequency spectrum shift) is baseband signal;
Low pass filter and variable gain amplifier are used for the outer interference signal of the useless band of filtering and carry out variable gain amplification or decay;
Analog to digital converter is used to finish the conversion of analog signal to digital signal;
It is characterized in that, also comprise:
The barrage jamming signal detector is used for detecting the intensity of blocking (interference) signal;
The system configuration adjuster is used for the barrage jamming signal information (as intensity, duration etc.) according to barrage jamming signal detector feedback, the mode of operation of adaptive adjustment receiver;
Described radio frequency amplifier, frequency mixer, low pass filter and variable gain amplifier, analog to digital converter link to each other successively, form N parallel receive link independently logically by the different running parameter of each device, each receives the some or all of device of link sharing; This N reception link all links to each other with the N path multiplexer, and the input of described barrage jamming signal detector links to each other with the output of described N path multiplexer, and the output of described barrage jamming signal detector links to each other with the input of system configuration adjuster.
4, according to claim 1,2 or 3 described receivers, it is characterized in that, also comprise the barrage jamming statistic gatherer that is connected between described barrage jamming signal detector and the system configuration adjuster, be used to collect and preserve the relevant statistical information of barrage jamming signal.
5, according to claim 1,2 or 3 described receivers, it is characterized in that, also comprise the band pass filter and second frequency mixer that are connected between described first frequency mixer and low pass filter and the variable gain amplifier, described band pass filter links to each other with the output of described system configuration adjuster respectively with second frequency mixer.
According to claim 1,2 or 3 described receivers, it is characterized in that 6, the mode of operation of the adaptive adjustment receiver of described system configuration adjuster is for adjusting effectively (the actual use) bit number of (increase or reduce) analog to digital converter; Or adjust among the bias current, impedance, gain, each parameter of supply power voltage of analog to digital converter one or more.
7, according to claim 1,2 or 3 described receivers, it is characterized in that, the mode of operation of the adaptive adjustment receiver of described system configuration adjuster among the pass band of adjusting low pass filter, transition band width, bias current, impedance, gain, each parameter of supply power voltage one or more, or adjust the implementation complexity (as adjusting the exponent number of filter) of low pass filter.
8, according to claim 1,2 or 3 described receivers, it is characterized in that the mode of operation of the adaptive adjustment receiver of described system configuration adjuster is for adjusting among described radio frequency amplifier bias current, impedance, gain, each parameter of supply power voltage one or more.
9, according to claim 1,2 or 3 described receivers, it is characterized in that, the mode of operation of the adaptive adjustment receiver of described system configuration adjuster among the bias current of adjusting described frequency mixer, impedance, gain, each parameter of supply power voltage one or more.
10, receiver according to claim 3, it is characterized in that, the mode of operation of the adaptive adjustment receiver of described system configuration adjuster is according to barrage jamming signal information, the adaptive reception link of selecting optimum, the running parameter that configuration is best is complementary the mode of operation of receiver and operational environment.
11, according to claim 1,2 or 3 described receivers, it is characterized in that, described barrage jamming signal detector (comprises targeting signal part and data-signal part) in whole Frame continual work, the relevant information of the collection barrage jamming signal that does not stop.
12, receiver according to claim 4 is characterized in that, described barrage jamming signal statistic gatherer is collected the relevant statistical information of barrage jamming signal, comprises the strength information of barrage jamming signal, and the frequency of barrage jamming signal appearance.
13, receiver according to claim 4 is characterized in that, described system configuration adjuster is based on the intensity of targeting signal and the statistical information of barrage jamming signal, the system configuration or the mode of operation of adaptive change system;
14, receiver according to claim 4, it is characterized in that described system configuration adjuster is according to the statistical information of barrage jamming signal, adaptive selection optimum reception link, the running parameter that configuration is best is complementary the mode of operation of receiver and operational environment.
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