A Ka-band multi-system multi-rate measurement and control device

Abstract

The present invention discloses a Ka-band multi-system multi-rate measurement and control device, which has two modes of ground incoherent measurement and control and ground measurement and control digital transmission and works in time-sharing mode, including: a Ka radio frequency transceiver module, used for receiving and transmitting ground measurement and control signals, the radio frequency signal includes two types of measurement and control signals, namely, the incoherent spread spectrum system and the measurement and control digital transmission system; a signal processing module, used for rapid capture and tracking of ground measurement and control signals, channel ranging signal processing and modulation and transmission of engineering telemetry; a secondary power supply module, used for power supply filtering, voltage conversion and transponder switch execution. The two functions of the present invention work in time-sharing mode and share a hardware platform, which improves the versatility and functional diversity of satellite-borne measurement and control products and reduces the overhead of satellite platforms. The receiving submodule and the transmitting submodule are arranged in a unitized manner and share a frequency source submodule, which reduces the weight of the module and improves the accuracy and reliability of the frequency process.

Description

Technical Field

[0001] The invention belongs to the technical field of aerospace measurement and control communication, and in particular relates to a Ka-band multi-system multi-rate measurement and control device. Background Art

[0002] Measurement and control products are the core products of satellite platforms. Once the measurement and control link fails to work properly, control of the satellite will be lost, resulting in unpredictable consequences. In view of the problems of urgent development time, complex operating environment, single working mode and inability to update functions on orbit of existing measurement and control products, it is urgent to propose a Ka-band multi-system multi-rate measurement and control device with two working modes: incoherent measurement and control and measurement and control data transmission. It also supports on-orbit reconstruction and can maximize the security and efficiency of the measurement and control link. The measurement and control functions can be redefined in real time as needed, effectively reducing the satellite's overhead, and it has the technical characteristics of being easy to implement and highly versatile. Summary of the invention

[0003] The technical purpose of the present invention is to provide a Ka-band multi-system multi-rate measurement and control device to solve the problems in the background technology.

[0004] To solve the above problems, the technical solution of the present invention is:

[0005] A Ka-band multi-system multi-rate measurement and control device, having two modes of ground incoherent measurement and control and ground measurement and control digital transmission and sharing a common measurement and control device, and working in time-sharing according to instructions, including:

[0006] Ka radio frequency transceiver module, used for receiving and transmitting ground measurement and control signals. The radio frequency signals include two types of measurement and control signals: non-coherent spread spectrum system and measurement and control digital transmission system;

[0007] Signal processing module, used for fast acquisition and tracking of ground measurement and control signals, channel ranging signal processing and modulation and transmission of engineering telemetry;

[0008] Secondary power modules for power filtering, voltage conversion and transponder switch execution.

[0009] Specifically, the Ka radio frequency transceiver module includes a receiving submodule, a transmitting submodule and a frequency source submodule;

[0010] The receiving submodule is used to convert the received ground-link Ka measurement and control signal into an intermediate frequency signal after two down-conversions and input it into the signal processing module;

[0011] The transmitting submodule is used to receive the TTL signal from the signal processing module and convert it into S frequency and Ka frequency.

[0012] After two frequency conversions, the Ka measurement and control signal for the underground downlink is modulated and output;

[0013] The frequency source submodule is signal-connected to the receiving submodule, the transmitting submodule and the signal processing module respectively, and is used to provide reference local oscillators for the receiving submodule and the transmitting submodule respectively, and to provide a working clock for the signal processing module.

[0014] Specifically, the receiving submodule includes an isolator, a first low noise amplifier unit, a second low noise amplifier unit, a first radio frequency filter, a first down-conversion unit, a second radio frequency filter, a temperature compensated attenuator, a second down-conversion unit, an intermediate frequency filter, a first AGC unit, a second intermediate frequency filter, and a first amplifier, which are sequentially connected in signal connection;

[0015] The isolator is a high-power isolator used to improve the anti-burning ability of the receiving submodule;

[0016] The temperature compensated attenuator is used to compensate for the device power fluctuation caused by the high and low temperature changes in the aerospace environment.

[0017] Specifically, the transmitting submodule includes a reference filter, a second amplifier, a local oscillator unit, an S frequency converter, a first filter, a Ka frequency converter, a second filter and a third filter which are sequentially connected in signal connection.

[0018] Specifically, the frequency source submodule includes a constant temperature crystal oscillator and a power divider;

[0019] The power divider is used to divide the clock of the constant temperature crystal oscillator into three paths, one of which is output to the signal processing module as the working clock, one is used as the reference first local oscillator and reference second local oscillator of the receiving submodule, and one is used as the reference second local oscillator of the transmitting submodule.

[0020] Specifically, the signal processing module includes an SRAM type FPGA, an anti-fuse refresh chip, two FLASH chips, a high-speed A / D conversion circuit, a high-speed D / A conversion circuit and an interface circuit;

[0021] SRAM FPGA is used for fast acquisition and tracking of ground control signals, channel ranging signal processing, and modulation and transmission of engineering telemetry;

[0022] The anti-fuse refresh chip is connected to the SRAM type FPGA signal, and is used for SRAM type FPGA loading status detection, forced autonomous multiple loading, and autonomous FLASH traversal loading;

[0023] The high-speed A / D conversion circuit and the high-speed D / A conversion circuit are used to connect the SRAM type FPGA with the Ka radio frequency transceiver module signal;

[0024] The FLASH chip is used to store data and supports verification, erasure, and reconstruction by sector.

[0025] The interface circuit is used to send and receive remote control and telemetry signals with external integrated electronic modules.

[0026] Among them, the anti-fuse refresh chip supports active and passive reconstruction for SRAM-type FPGAs;

[0027] UART interface communication via the interface circuit supports on-orbit passive reconstruction and returns reconstruction status telemetry in real time during the reconstruction process.

[0028] Among them, the high-speed A / D conversion circuit is used to receive the intermediate frequency signal from the Ka radio frequency transceiver module for analog-to-digital conversion, and send the generated digital signal to the SRAM type FPGA;

[0029] The high-speed D / A conversion circuit is used to receive the digital signal from the SRAM-type FPGA for digital-to-analog conversion, generate the local oscillator reference signal f0 and send it to the Ka radio frequency transceiver module.

[0030] Specifically, the secondary power module includes a voltage converter, an EMI filter circuit, a relay, a fuse, and an anti-surge circuit;

[0031] The fuse is used to receive external primary power supply;

[0032] The surge protection circuit is respectively connected with the relay, the fuse and the EMI filter circuit signal, and is used for being controlled by the relay to suppress the surge of the power supply and then output to the EMI filter circuit;

[0033] EMI filter circuit voltage converter is used to filter the surge-suppressed power supply and input it into different voltage converters;

[0034] Different voltage converters are used to receive the filtered power and convert it into different voltages and currents as needed.

[0035] Among them, all devices in the Ka RF transceiver module, signal processing module and secondary power supply module are radiation-resistant devices for aerospace use.

[0036] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art:

[0037] The present invention discloses a Ka-band multi-system multi-rate measurement and control device with two functions: ground-based incoherent measurement and control and ground-based measurement and control digital transmission. The two functions work in time-sharing and share a common hardware platform, which improves the versatility and functional diversity of satellite-borne measurement and control products and reduces the overhead of satellite platforms. The utilization and security of satellite measurement and control links can be maximized based on the functional characteristics of the two measurement and control systems. For example, when affected by weather and other interference factors, it can switch to the incoherent measurement and control mode to achieve smooth satellite measurement and control links. When the weather is good or there is a need for no interference factors, a large amount of data needs to be transmitted, and it can be switched to the measurement and control digital transmission integrated mode to improve transmission efficiency.

[0038] The present invention adopts the concepts of compatibility, universality and miniaturization of high, medium and low orbits in design, fully considers the application scenarios of satellite-borne products in each orbit and the maximum envelope requirements of each satellite platform, and adopts the design concept of configurable key program parameters, unitized and modularized hardware circuit design.

[0039] The Ka radio frequency transceiver module of the present invention fully considers the mutual interference between different frequency points, adopts the radio frequency SIP integrated design technology, arranges the receiving submodule and the transmitting submodule in a unitized manner, and shares the frequency source submodule, which reduces the weight of the module and improves the accuracy and reliability of the frequency process. The high-precision double frequency conversion design scheme is adopted, which better suppresses the leakage of the local oscillator and the stray interference compared with the single frequency conversion technology, ensures the phase noise and image suppression capabilities; and fully considers the strong interference confrontation in the space environment. A high-power isolator is used at the front end of the receiving submodule to improve the anti-burning ability, and a high-precision temperature compensation attenuator is placed before the secondary frequency conversion of the receiving submodule to compensate for the device power fluctuation caused by the high and low temperature changes in the aerospace space environment, so that the external telemetry AGC voltage is more stable, and it is more convenient to evaluate the input energy of the measurement and control link; its reference local oscillator f0 is generated by the signal processing module through program configuration, and the hardware platform can adapt to different frequency points, which improves flexibility.

[0040] In view of the influence of single particle inversion and complex electromagnetic environment on FPGA, the present invention adopts an anti-fuse FPGA with excellent single particle inversion resistance performance to regularly refresh and correct the internal configuration information of SRAM type FPGA. Compared with ASIC chip, anti-fuse FPGA has the characteristics of flexible design and can respond to changing application requirements more quickly.

[0041] The present invention aims to solve the problem that the program loading process is easily disturbed, resulting in the failure of function loading and the loss of control of the measurement and control link. The anti-fuse FPGA is used to detect the program loading result. If the loading fails, it is forced to reload three times until it succeeds. If the current FLASH cannot be loaded successfully after three times, the program of another FLASH is loaded without the need for the onboard computer to send a switch FLASH instruction, fully ensuring the security of the measurement and control link. This loading control method has good accuracy and autonomy.

[0042] The present invention aims at the problems of short development cycle of satellite platform measurement and control products, diverse functional requirements, and the inability to update and maintain the functions of existing measurement and control products once they are in orbit, and proposes a satellite-borne measurement and control product with non-coherent measurement and control and integrated measurement and control data transmission. The product has two modes: active reconstruction and passive reconstruction, which can be selected according to the satellite platform configuration to minimize the satellite platform overhead. In addition, the reconstruction process can feedback the FLASH sector verification results to the onboard computer in real time. If a sector reconstruction error occurs, other FLASH sectors can continue to be burned. After the reconstruction is completed, the sector is erased and reconstructed separately, avoiding frequent data interaction during the reconstruction process, resulting in an overly complicated process and affecting the reconstruction efficiency. In addition, the reconstructed communication mode, such as baud rate, transmission bit number and other settings, can be configured according to the external input level, and can respond to the interface requirements of different satellite models as quickly as possible.

[0043] The secondary power supply module of the present invention is suitable for different primary voltage inputs of 22V-46V, meets the maximum voltage envelope of the satellite platform, and has universality. In addition, all components are anti-radiation components for aerospace use, and are all domestic components, and the key technologies are independently controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the following detailed description of the preferred embodiment.The drawings are only for the purpose of illustrating the preferred embodiments and are not to be construed as limiting the invention.

[0045] Figure 1 A structural block diagram of a Ka-band multi-system multi-rate measurement and control device of the present invention;

[0046] Figure 2 A structural block diagram of a Ka radio frequency transceiver module of the present invention;

[0047] Figure 3 It is a power-on reload configuration flow chart of the present invention;

[0048] Figure 4 This is the on-orbit reconstruction flow chart of the present invention. DETAILED DESCRIPTION

[0049] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0050] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0051] The advantages and features of the present invention will become more apparent from the following description and claims.

[0052] Example

[0053] See also Figures 1 to 4 This embodiment provides a Ka-band multi-system and multi-rate measurement and control device, which has two measurement and control systems: incoherent measurement and control and integrated measurement and control digital transmission, and multiple communication rates. The two modes are switched through instructions and work in time-sharing, sharing a set of hardware platforms. In this way, a variety of configurations can be combined and applied according to application scenarios, which not only ensures the diversity of the measurement and control link but also improves the utilization rate of the measurement and control link. In addition, this embodiment supports program loading status monitoring, active reconstruction and passive reconstruction, which can effectively ensure the functional diversity, configurability and security of the measurement and control link. When working in the measurement and control digital transmission mode, the configuration program can be uploaded at high speed to complete the in-orbit reconstruction of itself or other products.

[0054] This embodiment specifically includes: a Ka radio frequency transceiver module, which is used for receiving and transmitting ground measurement and control signals, and the radio frequency signals include two types of measurement and control signals: an incoherent spread spectrum system and a measurement and control digital transmission system. A signal processing module is connected to the Ka radio frequency transceiver module through a high-frequency cable signal, and is used for rapid capture and tracking of ground measurement and control signals, channel ranging signal processing, and modulation and transmission of engineering telemetry while ensuring signal integrity. The secondary power supply module is electrically connected to the Ka radio frequency transceiver module and the signal processing module, respectively, and mainly performs power supply filtering, voltage conversion, transponder switch, refresh prohibition, FLASH cutting, FPGA reset instructions and other execution functions, and provides external 5V, 3.3V and other key analog quantity telemetry to determine the working status of the whole machine.

[0055] See also Figure 1 The Ka RF transceiver module includes a receiving submodule, a transmitting submodule and a frequency source submodule. It fully considers the mutual interference between different frequency points and adopts the RF SIP integrated design technology. The receiving submodule and the transmitting submodule are arranged in a unitized manner, and the frequency source submodule is shared, which reduces the weight of the module and improves the accuracy and reliability of the frequency process.

[0056] In addition, the Ka RF transceiver module adopts a high-precision secondary frequency conversion design and includes three external high-frequency interfaces. The high-frequency interfaces are connected to the signal processing module through SMP cables, namely the output intermediate frequency interface J1, the reference clock output interface J2, and the receiving local oscillator input interface J3.

[0057] The receiving submodule is used to convert the received Ka measurement and control signal for the ground uplink into an intermediate frequency signal after two down-conversions and input it into the signal processing module. The transmitting submodule is used to receive the TTL signal from the signal processing module, convert it twice by S frequency conversion and Ka frequency conversion, and then modulate and output the Ka measurement and control signal for the ground downlink. The frequency source submodule is respectively connected to the receiving submodule, the transmitting submodule and the signal processing module, and is used to provide reference local oscillators for the receiving submodule and the transmitting submodule, and provide a working clock for the signal processing module.

[0058] Specifically, see Figure 1 and Figure 2 , the receiving submodule includes an isolator, a first low noise amplifier unit, a second low noise amplifier unit, a first RF filter, a first down-conversion unit, a second RF filter, a temperature compensated attenuator, a second down-conversion unit, an intermediate frequency filter, a first AGC unit, a second intermediate frequency filter, and a first amplifier, which are sequentially connected. That is, the Ka measurement and control signal for the ground link is received from the receiving antenna, amplified twice by the low noise amplifier after passing through the isolator, and then the signal is subjected to RF filtering, and then two down-conversions are performed to obtain the intermediate frequency signal, so as to effectively suppress the leakage of the local oscillator and the stray interference, and ensure the phase noise and image suppression capabilities. Then the intermediate frequency signal is subjected to intermediate frequency filtering, and the intermediate frequency filtering is performed again after the gain of the AGC unit, and finally the signal is amplified by the first amplifier and output to the signal processing module.

[0059] In order to fully consider the strong interference resistance in the space environment, a high-power isolator is used at the front end of the receiving submodule to improve the anti-burning ability of the receiving submodule. The high-precision temperature compensation attenuator is set between the two down-conversion units to compensate for the device power fluctuations caused by the high and low temperature changes in the aerospace environment, and at the same time make the external telemetry AGC voltage more stable, which is convenient for evaluating the input energy of the measurement and control link.

[0060] Specifically, see Figure 1 and Figure 2The transmitting submodule includes a reference filter, a second amplifier, a local oscillator unit, an S frequency converter, a first filter, a Ka frequency converter, a second filter and a third filter which are sequentially connected. The reference filter receives the TTL signal from the signal processing module and amplifies the signal through the second amplifier, and then realizes S frequency conversion after passing through the local oscillator unit and the S frequency converter, and then realizes Ka frequency conversion modulation after passing through the Ka frequency converter, and finally outputs the Ka measurement and control signal for the underground downlink. A first filter is provided between the S frequency converter and the Ka frequency converter, and a second filter and a third filter are provided between the Ka frequency converter and the output end, and the filter is used to filter the signal passing through it.

[0061] Specifically, see Figure 1 and Figure 2 The frequency source submodule includes a constant temperature crystal oscillator (also called a temperature compensated crystal oscillator), a power divider, several frequency multipliers and several filters. The power divider divides the clock of the constant temperature crystal oscillator into three paths, one of which is output to the signal processing module through J2 as a working clock after passing through the frequency multiplier and filter, one of which is divided into two paths of frequency multipliers and filters as the reference first local oscillator and reference second local oscillator of the receiving submodule respectively, and the other path is used as the reference second local oscillator of the transmitting submodule through the frequency multiplier and filter. Since the same constant temperature crystal oscillator is used as the only frequency reference, the convenience of signal processing is improved.

[0062] Specifically, see Figure 1 The signal processing module includes an SRAM type FPGA, an anti-fuse refresh chip, two FLASH chips, a high-speed A / D conversion circuit, a high-speed D / A conversion circuit and an interface circuit.

[0063] The SRAM FPGA is connected to the anti-fuse refresh chip, two FLASH chips, high-speed A / D conversion circuit, high-speed D / A conversion circuit and interface circuit signals respectively, and is used for fast capture and tracking of ground measurement and control signals, channel ranging signal processing and modulation and transmission of engineering telemetry. The anti-fuse refresh chip is connected to the SRAM FPGA signal, and is used for SRAM FPGA loading status detection, forced autonomous multiple loading and autonomous FLASH traversal loading, so that the SRAM FPGA supports active and passive reconstruction on orbit. In response to single-particle flips caused by space radiation, the anti-fuse refresh chip will regularly refresh the internal configuration registers of the SRAM FPGA in the data processing module, thereby correcting the single-particle flips that occur inside the SRAM FPGA under the premise of uninterrupted SRAM FPGA operation to ensure normal operation.

[0064] High-speed A / D conversion circuit and high-speed D / A conversion circuit are used to connect the SRAM type FPGA with the Ka radio frequency transceiver module signal. The FLASH chip uses radiation-resistant NOR type FLASH to store the configuration information of the SRAM type FPGA, that is, the original configuration information of non-coherent measurement and control and measurement and control data transmission. It supports repeated burning and supports verification, erasure, and reconstruction according to sectors. Among them, Flash1 stores the non-coherent spread spectrum baseband configuration information, and Flash2 stores the measurement and control data transmission integrated baseband configuration information.

[0065] The interface circuit is used to send and receive remote control and telemetry signals with external integrated electronic modules. The UART interface communication of the interface circuit supports passive reconstruction on orbit, and returns the reconstruction status telemetry in real time during the reconstruction process. The high-speed A / D conversion circuit is used to receive the intermediate frequency signal from the Ka radio frequency transceiver module for analog-to-digital conversion, and send the generated digital signal to the SRAM type FPGA; the high-speed D / A conversion circuit is used to receive the digital signal from the SRAM type FPGA for digital-to-analog conversion, and is also used to generate the local oscillator reference signal f0 and send it to the Ka radio frequency transceiver module. The parameters can be configured according to different frequency points through the SARM type FPGA.

[0066] The above-mentioned signal processing module adopts a design concept of compatibility, universality and miniaturization for high, medium and low orbits, fully considering the application scenarios of satellite-borne products in each orbit and the maximum envelope requirements of each satellite platform, and adopts a design concept of configurable key program parameters, unitized and modularized hardware circuit design.

[0067] Specifically, see Figure 1 The secondary power supply module includes a voltage converter, an EMI filter circuit, a relay, a fuse, and an anti-surge circuit. The fuse receives primary power from an external power supply system, which is adapted to a primary power input with a voltage range of 22V-46V, meets the maximum voltage envelope of the satellite platform, and is universal; the power enters the anti-surge circuit and is controlled by the relay to suppress the surge of the power supply and then output to the EMI filter circuit. The surge-suppressed power supply is filtered by the EMI filter circuit, and then passes through different voltage converters to output currents with voltages of 3.3V, 5V, and 12V to the signal processing module and the Ka RF transceiver module to achieve power supply.

[0068] All devices in the above-mentioned Ka RF transceiver module, signal processing module and secondary power supply module are aerospace-grade radiation-resistant devices, and are all domestically produced devices, with key technologies independently controllable.

[0069] Better, see Figure 3, if the anti-fuse refresh chip is powered on or receives an FPGA reset instruction, the selected FLASH configuration program is loaded according to the specified timing. If the anti-fuse refresh chip does not receive the Done signal within a certain period of time, it means that the SRAM-type FPGA has not been configured successfully, then the PROGRAM_B signal is forced to be pulled down three times in succession according to the configuration timing until the Done signal indicating successful FPGA power-on configuration is received. If the Done signal cannot be received after three pull-downs, the configuration error information is returned to the onboard computer. Then, the anti-fuse refresh chip automatically selects another FLASH, and then forces the PROGRAM_B signal to be pulled down three times in succession until the Done signal indicating successful FPGA power-on configuration is received. The above-mentioned high-reliability power-on configuration method fully guarantees the security of the satellite measurement and control link.

[0070] Better, see Figure 4 In this embodiment, the anti-fuse refresh chip supports active reconstruction and passive reconstruction for the SRAM-type FPGA. When the two reconstruction methods exist at the same time, passive reconstruction takes precedence. Active reconstruction, that is, not through the onboard computer, only relying on a Ka-band multi-system multi-rate measurement and control device to complete the update of the configuration program of the selected FLASH, the overhead for the entire satellite is relatively small. Passive reconstruction, that is, through the measurement and control data transmission mode of this embodiment, the configuration program of the selected FLASH is uploaded to the onboard computer for storage at high speed, and the onboard computer then updates the configuration program through the UART interface. The reconstruction information during the reconstruction process is fed back to the onboard computer in real time through the asynchronous 422 interface to complete the real-time monitoring of the entire reconstruction process. If the verification information of the FLASH sector returned by the reconstruction process is incorrect, the ground can re-erase the program of the sector, and then re-inject and reconstruct it. Preferably, the reconstruction baud rate of the anti-fuse refresh chip can be externally configured to better meet the needs of different satellite platforms.

[0071] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the protection scope of the present invention.

Claims

1. A Ka-band multi-system multi-rate measurement and control device, which has two modes of ground incoherent measurement and control and ground measurement and control digital transmission and works in time-sharing mode, characterized in that: include: Ka radio frequency transceiver module, used for receiving and transmitting ground measurement and control signals. The radio frequency signals include two types of measurement and control signals: non-coherent spread spectrum system and measurement and control digital transmission system; Signal processing module, used for fast acquisition and tracking of ground measurement and control signals, channel ranging signal processing and modulation and transmission of engineering telemetry; Secondary power module for power filtering, voltage conversion and transponder switch execution; Wherein, the signal processing module includes an SRAM type FPGA, an anti-fuse refresh chip, two FLASH chips, a high-speed A / D conversion circuit, a high-speed D / A conversion circuit and an interface circuit; The SRAM type FPGA is used for fast capture and tracking of ground measurement and control signals, channel ranging signal processing and modulation and transmission of engineering telemetry; The anti-fuse refresh chip is connected to the SRAM type FPGA signal, and is used for detecting the loading state of the SRAM type FPGA, forcing autonomous multiple loading and autonomous FLASH traversal loading, and real-time monitoring of the measurement and control state; The high-speed A / D conversion circuit and the high-speed D / A conversion circuit are used to connect the SRAM type FPGA with the Ka radio frequency transceiver module signal; The FLASH chip is used to store data and supports verification, erasure, and reconstruction on a sector-by-sector basis; The interface circuit is used to send and receive remote control and telemetry signals with an external integrated electronic module; The anti-fuse refresh chip supports active reconstruction and passive reconstruction of the SRAM type FPGA; The UART interface communication via the interface circuit supports passive reconstruction on-orbit and returns reconstruction status telemetry in real time during the reconstruction process.

2. The Ka-band multi-system multi-rate measurement and control device according to claim 1, characterized in that: The Ka radio frequency transceiver module includes a receiving submodule, a transmitting submodule and a frequency source submodule; The receiving submodule is used to convert the received Ka measurement and control signal for the ground link into a signal after two down-conversions. Obtaining an intermediate frequency signal and inputting it into the signal processing module; The transmitting submodule is used to receive the TTL signal from the signal processing module and perform S frequency conversion and Ka After two frequency conversions, the Ka measurement and control signal for the underground downlink is modulated and output; The frequency source submodule is respectively connected to the receiving submodule, the transmitting submodule and the signal The processing module signal is connected to provide the receiving submodule and the transmitting submodule with reference signals. The local oscillator provides a working clock for the signal processing module.

3. The Ka-band multi-system multi-rate measurement and control device according to claim 2, characterized in that: The receiving submodule includes an isolator, a first low noise amplifier unit, a second low noise amplifier unit, a first radio frequency filter, a first down-conversion unit, a second radio frequency filter, a temperature compensated attenuator, a second down-conversion unit, an intermediate frequency filter, a first AGC unit, a second intermediate frequency filter, and a first amplifier, which are sequentially connected in signal connection; The isolator is a high-power isolator, which is used to improve the anti-burning capability of the receiving submodule; The temperature compensation attenuator is used to compensate for device power fluctuations caused by high and low temperature changes in the aerospace environment.

4. The Ka-band multi-system multi-rate measurement and control device according to claim 2, characterized in that: The transmitting submodule includes a reference filter, a second amplifier, a local oscillator unit, an S frequency converter, a first filter, a Ka frequency converter, a second filter and a third filter which are sequentially connected.

5. The Ka-band multi-system multi-rate measurement and control device according to claim 2, characterized in that: The frequency source submodule includes a constant temperature crystal oscillator and a power divider; The power divider is used to divide the clock of the constant temperature crystal oscillator into three paths, one path is output to the signal processing module as a working clock, one path is used as a reference local oscillator and a reference second local oscillator of the receiving submodule, and one path is used as a reference second local oscillator of the transmitting submodule.

6. The Ka-band multi-system multi-rate measurement and control device according to claim 1, characterized in that: The high-speed A / D conversion circuit is used to receive the intermediate frequency signal from the Ka radio frequency transceiver module for analog-to-digital conversion, and send the generated digital signal to the SRAM type FPGA; The high-speed D / A conversion circuit is used to receive the digital signal from the SRAM type FPGA for digital-to-analog conversion, generate a local oscillator reference signal f0 and send it to the Ka radio frequency transceiver module.

7. The Ka-band multi-system multi-rate measurement and control device according to claim 1, characterized in that: The secondary power supply module includes a voltage converter, an EMI filter circuit, a relay, a fuse, and an anti-surge circuit; The fuse is used to receive an external primary power supply to prevent overcurrent from burning out the device; The surge protection circuit is respectively connected to the relay, the fuse and the EMI filter circuit signal, and is used for being controlled by the relay to suppress the surge of the power supply and then output to the EMI filter circuit; The EMI filter circuit voltage converter is used to filter the surge-suppressed power supply and input it into different voltage converters; The different voltage converters are used to receive the filtered power and convert it into different voltages and currents as required.

8. The Ka-band multi-system multi-rate measurement and control device according to claim 1, characterized in that: All components in the Ka radio frequency transceiver module, the signal processing module and the secondary power supply module are radiation-resistant components for aerospace use.

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