CN217770060U - Universal broadband digital-analog hybrid tracking receiver device - Google Patents
Universal broadband digital-analog hybrid tracking receiver device Download PDFInfo
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- CN217770060U CN217770060U CN202221079406.XU CN202221079406U CN217770060U CN 217770060 U CN217770060 U CN 217770060U CN 202221079406 U CN202221079406 U CN 202221079406U CN 217770060 U CN217770060 U CN 217770060U
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Abstract
The utility model discloses a mixed receiver device that trails of general type broadband digifax, the device includes: the device comprises a frequency conversion direct connection module, a signal processing module and a data processing module; the frequency conversion direct connection module is respectively connected with the signal processing module and the data processing module through wires, the signal processing module is also connected with the data processing module through wires, and the data processing module is wirelessly connected with a user side. By combining analog and digital modes, the range of a receiving frequency band is widened, the frequency conversion scheme of a tracking receiver is simplified, and the whole machine can receive a larger dynamic range.
Description
Technical Field
The utility model relates to a satellite communication field, concretely relates to general type broadband digifax hybrid tracking receiver device.
Background
The satellite communication has the advantages of wide coverage range, long communication distance, large communication capacity, convenient and rapid networking, convenient global seamless connection and the like.
With the rapid development of satellite internet technology, the world-ground integration concept is well-established design and construction, and various high, medium and low orbit satellites and constellations applied to communication, navigation and telemetry are comprehensively developed. With the huge outbreak of microsatellites, the satellite tracking technology has become a first problem affecting the application effect of satellite communication, and breakthrough is urgently needed. How to search for satellites and continuously track and establish stable communication links is always the focus of satellite communication research. Satellite communication tracking receivers have evolved over decades as an aid to satellite communications. The existing tracking receivers are all special customized products, track specific satellites, use specific beacon frequencies and specific signal modes (single-tone continuous wave or modulated carrier signals), and completely fail to meet the existing multi-satellite constellation and multi-system tracking modes.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a mixed receiver device that trails of general type broadband digifax through analog and digital combination mode, has widened the scope of receiving the frequency channel, has simplified the frequency conversion scheme of following the receiver, makes the complete machine can receive bigger dynamic range.
In order to achieve the above purpose, the utility model provides a following scheme:
a universal wideband digital-to-analog hybrid tracking receiver apparatus, comprising: the device comprises a frequency conversion direct connection module, a signal processing module and a data processing module;
the frequency conversion direct connection module is respectively connected with the signal processing module and the data processing module;
the signal processing module is also connected with the data processing module.
Preferably, the frequency conversion pass-through module comprises a first switch, a second switch, a third switch, a first filter, a frequency conversion device and an integrated VCO phase-locked loop;
the first switch is respectively connected with the first filter and the frequency conversion device;
the second switch is respectively connected with the first filter and the frequency conversion device;
the third switch is connected with the integrated VCO phase-locked loop and the frequency conversion device respectively.
Preferably, the frequency conversion device comprises a filtering device, an amplifying device and a frequency mixing device;
the filtering device is respectively connected with the amplifying device and the frequency mixing device;
the amplifying device is also connected with the frequency mixing device.
Preferably, the filtering device comprises a second filter, a third filter, a fourth filter, a fifth filter, a sixth filter and a seventh filter;
the amplifying device comprises a first amplifier, a second amplifier and a third amplifier;
the frequency mixing device comprises a first mixer, a second mixer and a third mixer.
Preferably, the second filter is connected to the first amplifier, the first amplifier is further connected to the first mixer, and the first mixer is further connected to the third filter and the third switch, respectively;
the fourth filter is connected with the second amplifier, the second amplifier is further connected with the second mixer, and the second mixer is further connected with the fifth filter and the third switch respectively;
the sixth filter is connected with the third amplifier, the third amplifier is further connected with the third mixer, and the third mixer is further connected with the seventh filter and the third switch respectively.
Preferably, the signal processing module comprises a numerical control attenuator, a fourth amplifier, a fifth amplifier and an eighth filter;
the numerical control attenuator is respectively connected with the second switch and the fourth amplifier;
the fourth amplifier is also connected with the eighth filter;
the eighth filter is also connected to the fifth amplifier.
Preferably, the data processing module comprises a broadband transceiver and an MCU controller;
the broadband transceiver is respectively connected with the fifth amplifier and the MCU controller;
the MCU controller is also connected with the integrated VCO phase-locked loop and the numerical control attenuator.
Preferably, the data processing module is further connected with the user side.
The utility model has the advantages that:
(1) The universal broadband digital-analog hybrid tracking receiver can cover L, S, C and Ku ultra-wideband working frequency bands, and meets the beacon tracking requirements of most satellite systems in the market at present;
(2) Through the combination of analog and digital modes, the switch filter bank of the RF front end across the frequency doubling layer is greatly reduced, meanwhile, the receiving frequency range of the RF front end is widened, and the volume, the weight and the hardware cost of the product are greatly reduced;
(3) Through the mode of combining analog and digital, only the intermediate frequency suppression and image frequency suppression parameters of analog once frequency conversion need to be considered, and the pure digital processing of the back end based on the SDR software defined radio system can be processed by adopting a zero intermediate frequency mode, so that the frequency conversion scheme of the tracking receiver is greatly simplified;
(4) Through the mode of combining analog and digital, the ultra-wideband radio frequency receiving frequency band is converted to a high-performance frequency band which can be processed by a digital chip at one time, and the performance of a device is fully ensured on the premise of ensuring the thermal energy consumption of the device;
(5) The dynamic range of the receiving power of the digital device is supplemented by utilizing the front-end digital control attenuator in an analog and digital combined mode, so that the whole machine can receive a larger input dynamic range;
(6) Single tone continuous wave and modulated signal carrier wave can be supported for signal tracking.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required to be used in the embodiments are briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive laboriousness.
Fig. 1 is a circuit connection block diagram of a general broadband digital-analog hybrid tracking receiver apparatus of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
In this embodiment, as shown in fig. 1, the present invention provides a general wideband digital-analog hybrid tracking receiver apparatus, including: the device comprises a frequency conversion direct connection module, a signal processing module and a data processing module; the frequency conversion pass-through module can also change the number of the corresponding mixing channels by changing the number of the filters, the amplifiers and the mixers, and the number of the selected mixing channels in this embodiment is 3.
And the frequency conversion direct connection module is used for carrying out direct connection on the L frequency band signal and the S frequency band signal according to frequency band division, converting the C frequency band signal to an L frequency band, converting the X frequency band signal to an L frequency band, converting the Ku frequency band signal to an L frequency band, and carrying out switch filter bank processing.
And the signal processing module is used for designing a numerical control attenuator to supplement digital gain conditioning, increasing the gain dynamic range of the tracking receiver and amplifying and filtering the signals of the L frequency band signal and the S frequency band signal after direct connection or frequency conversion.
And the data processing module is used for carrying out AD acquisition and demodulation processing on the signals of the L frequency band and the S frequency band according to the signal types, carrying out real-time judgment processing on the processed AGC data signals and carrying out user feedback on the data.
The frequency conversion direct-connection module comprises a first switch, a first filter, a second filter, a first amplifier, a first mixer, a third filter, a fourth filter, a second amplifier, a second mixer, a fifth filter, a sixth filter, a third amplifier, a third mixer, a seventh filter, a second switch, an integrated VCO phase-locked loop and a third switch.
The first switch of the frequency conversion direct connection module is used for dividing broadband beacon signals into four branches of the switch according to a receiving frequency range, wherein the first branch is an L frequency band beacon signal and an S frequency band beacon signal, the second branch is a C frequency band beacon signal, the third branch is an X frequency band beacon signal, and the fourth branch is a Ku frequency band beacon signal.
And the first filter of the frequency conversion direct-connection module is respectively connected with the first switch and the second switch and is used for carrying out band-pass filtering on the beacon signals of the L and S frequency bands of the first branch and filtering out-of-band and image frequency and other interference signals.
And the second filter of the frequency conversion direct connection module is respectively connected with the first switch and the first amplifier and is used for carrying out band-pass filtering on the C frequency band beacon signal of the second branch circuit and filtering out interference signals such as out-of-band interference, image frequency interference and the like.
The first amplifier of the frequency conversion direct-connection module is also connected with the first mixer and used for carrying out low-noise amplification on the C-band beacon signal of the second branch circuit so as to ensure the sensitivity of the channel signal.
The first frequency mixer of the frequency conversion direct-connection module is also respectively connected with the third switch and the third filter and used for converting the C-band beacon signal of the second branch circuit into an L-band signal.
And the third filter of the frequency conversion direct-connection module is also connected with the second switch and is used for carrying out band-pass filtering on the beacon signal of the second branch circuit which is subjected to frequency conversion to the L frequency band and filtering out-of-band and local oscillation interference signals and the like.
And the fourth filter of the frequency conversion direct-connection module is respectively connected with the first switch and the second amplifier and is used for carrying out band-pass filtering on the X frequency band beacon signal of the third branch circuit and filtering out-of-band and image frequency and other interference signals.
The second amplifier of the frequency conversion direct-connection module is also connected with the second mixer and used for carrying out low-noise amplification on the X-frequency-band beacon signal of the third branch circuit so as to ensure the sensitivity of the channel signal.
The second frequency mixer of the frequency conversion direct-connection module is also respectively connected with the third switch and the fifth filter and used for carrying out frequency conversion on the X frequency band beacon signal of the third branch circuit to an L frequency band signal.
And the fifth band-pass filter of the frequency conversion direct-connection module is also connected with the second switch and is used for carrying out band-pass filtering on the beacon signal of the L frequency band converted by the third branch circuit to filter out-of-band and local oscillation interference signals and the like.
And the sixth filter of the frequency conversion direct connection module is connected with the third amplifier and is used for carrying out band-pass filtering on the Ku frequency band beacon signal of the fourth branch and filtering out-of-band and image frequency and other interference signals.
And the third amplifier of the frequency conversion direct-connection module is also connected with a third mixer and is used for carrying out low-noise amplification on the Ku frequency band beacon signal of the fourth branch circuit so as to ensure the sensitivity of the channel signal.
The third mixer of the frequency conversion direct connection module is also respectively connected with the third switch and the seventh filter and is used for converting the Ku frequency band beacon signal of the fourth branch into an L frequency band signal.
The seventh band-pass filter of the frequency conversion straight-through module is also connected with the second switch and is used for carrying out band-pass filtering on the beacon signal of the L frequency band converted by the fourth branch to filter out-of-band and local oscillation interference signals and the like.
The second switch of the frequency conversion direct connection module has the function of switching three paths of frequency conversion and one path of direct connection signals in a switch combining way.
And the frequency conversion direct-connection module integrates a VCO phase-locked loop and is connected with the third switch and used for providing local oscillation frequency signals required by meeting the requirement of frequency conversion from C, X and Ku frequency bands to L frequency bands.
The third switch of the frequency conversion direct-connection module has the function of selectively distributing the frequency of the broadband local oscillation signal to the branch circuit for frequency mixing through switching.
The signal processing module comprises a numerical control attenuator, a fourth amplifier, an eighth filter and a fifth amplifier.
The signal processing module numerical control attenuator is respectively connected with the second switch and the fourth amplifier and is used for adjusting the gain dynamics of the front end through the numerical control attenuation circuit, enhancing the receiving large dynamic characteristic of the tracking receiver, and adjusting the receiving dynamic adjusting range by 30dB and the adjustable step by 0.5dB.
The fourth amplifier of the signal processing module is further connected with the eighth filter and is used for uniformly carrying out secondary low-noise amplification on the signals in the L frequency band and the S frequency band and amplifying the amplitude of the tracking beacon signal.
The eighth filter of the signal processing module is further connected with the fifth amplifier and is used for further filtering the signals of the L frequency band and the S frequency band and filtering out the interference of out-of-band and local oscillation signals.
The fifth amplifier of the signal processing module is used for amplifying the large signals of the L and S frequency band signals to obtain amplitude signals which can be processed by the rear-end digital acquisition signals.
The data processing module comprises a broadband transceiver and an MCU controller.
The data processing module broadband transceiver is respectively connected with the fifth amplifier and the MCU controller, is used for filtering the narrowband signals with digital editable bandwidth, has analog signal and digital signal gain and related gain conditioning function, analog signal digital sampling (ADC function), can process continuous single tone signals and can also process modulated carriers, and also has programmable received signal strength indication and control output function.
The data processing module MCU controller is also respectively connected with the integrated VCO phase-locked loop and the numerical control attenuator and is used for processing and judging the signals received and collected by the broadband transceiver, maintaining the beacon tracking state of the locking signals and continuously performing large-gain wider band search on the unlocking state; and monitoring and reporting the working state of the tracking receiver, such as the locking state of a phase-locked loop, the tracking state of a beacon signal and the like.
The data processing module MCU controller is also used for outputting tracking information to a user.
The above-mentioned embodiments are only descriptions of the preferred embodiments of the present invention, but not limitations to the scope of the present invention, and all the modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.
Claims (8)
1. A universal wideband digital-to-analog hybrid tracking receiver apparatus, comprising: the device comprises a frequency conversion direct connection module, a signal processing module and a data processing module;
the frequency conversion direct connection module is respectively connected with the signal processing module and the data processing module;
the signal processing module is also connected with the data processing module.
2. A universal wideband digital-to-analog hybrid tracking receiver apparatus according to claim 1, wherein said frequency conversion pass-through module comprises a first switch, a second switch, a third switch, a first filter, a frequency conversion means, and an integrated VCO phase-locked loop;
the first switch is respectively connected with the first filter and the frequency conversion device;
the second switch is respectively connected with the first filter and the frequency conversion device;
and the third switch is respectively connected with the integrated VCO phase-locked loop and the frequency conversion device.
3. The apparatus of claim 2, wherein the frequency conversion means comprises a filter means, an amplifier means and a mixer means;
the filtering device is respectively connected with the amplifying device and the frequency mixing device;
the amplifying device is also connected with the frequency mixing device.
4. A generic wideband digital-to-analog hybrid tracking receiver apparatus according to claim 3,
the filtering device comprises a second filter, a third filter, a fourth filter, a fifth filter, a sixth filter and a seventh filter;
the amplifying device comprises a first amplifier, a second amplifier and a third amplifier;
the frequency mixing device comprises a first mixer, a second mixer and a third mixer.
5. A generic wideband digital-to-analog hybrid tracking receiver apparatus according to claim 4,
the second filter is connected with the first amplifier, the first amplifier is also connected with the first mixer, and the first mixer is also respectively connected with the third filter and the third switch;
the fourth filter is connected with the second amplifier, the second amplifier is also connected with the second mixer, and the second mixer is also respectively connected with the fifth filter and the third switch;
the sixth filter is connected with the third amplifier, the third amplifier is further connected with the third mixer, and the third mixer is further connected with the seventh filter and the third switch respectively.
6. The universal wideband digital-to-analog hybrid tracking receiver apparatus according to claim 2, wherein said signal processing module comprises a digitally controlled attenuator, a fourth amplifier, a fifth amplifier and an eighth filter;
the numerical control attenuator is respectively connected with the second switch and the fourth amplifier;
the fourth amplifier is also connected with the eighth filter;
the eighth filter is also connected to the fifth amplifier.
7. The universal wideband digital-to-analog hybrid tracking receiver apparatus according to claim 6, wherein the data processing module includes a wideband transceiver and an MCU controller;
the broadband transceiver is respectively connected with the fifth amplifier and the MCU controller;
the MCU controller is also connected with the integrated VCO phase-locked loop and the numerical control attenuator.
8. The apparatus of claim 1, wherein the data processing module is further connected to a user side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221079406.XU CN217770060U (en) | 2022-05-07 | 2022-05-07 | Universal broadband digital-analog hybrid tracking receiver device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221079406.XU CN217770060U (en) | 2022-05-07 | 2022-05-07 | Universal broadband digital-analog hybrid tracking receiver device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217770060U true CN217770060U (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221079406.XU Active CN217770060U (en) | 2022-05-07 | 2022-05-07 | Universal broadband digital-analog hybrid tracking receiver device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217770060U (en) |
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2022
- 2022-05-07 CN CN202221079406.XU patent/CN217770060U/en active Active
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