CN118249896A - On-orbit real-time task response system and method based on sensing communication integration - Google Patents

Abstract

The present invention provides an on-orbit real-time task response system and method based on perception and communication integration, including: an integrated processing unit obtains a payload task switching instruction; a payload management unit performs channel conversion according to the payload task switching instruction; a perception and communication integrated processing unit tracks and obtains a perception and communication integrated signal carrying a payload task reconstruction data packet; a digital stand-alone reconstruction control unit performs analysis and verification in combination with integrated processing to obtain payload task data, thereby extracting task reconstruction parameters; a payload stand-alone configuration unit performs payload task parameter configuration to construct a new task function. The present invention enables a perception-type payload to autonomously receive the reconstruction data of a task response and complete judgment and configuration response operations. By increasing the injection rate, reducing intermediate interactions, and concealed transmission strategies, the task switching time of the on-board payload software is reduced, the sensitivity and real-time performance of the payload task response are improved, and the rapid response requirements of on-orbit tasks are met.

Description

On-orbit real-time mission response system and method based on perception and communication integration

Technical Field

The present invention relates to the field of perception-communication integration and on-orbit mission response technology, and in particular, to an on-orbit real-time mission response system and method based on perception-communication integration, and also to a corresponding computer terminal and computer-readable storage medium.

Background technique

In order to cope with the complexity of the space environment, satellite technology is constantly improving and optimizing. In traditional applications, in order to improve the operational reliability of spacecraft, when soft faults occur during on-orbit operation, reversible abnormalities that can be restored by rewriting the code, on-orbit reconstruction of the payload is an important means to ensure stable operation; but the existing on-orbit reconstruction technology basically focuses on reconstructing data on the measurement and control link, which usually has the problem of low upload rate. For the early simple single-particle flip-caused refresh recovery problem, it can meet the use requirements to a certain extent. However, with the increase in the amount and complexity of mission reconstruction data in recent years, the measurement and control channel upload often requires dozens of orbits to complete the upload of all reconstructed data, which is disadvantageous to the current payload function upgrade. It not only increases the extra processing costs of on-orbit data storage and calculation, but also cannot be reconstructed and solved in real time if there are slightly complicated operational abnormalities.

In addition, with the rapid development of aerospace technology, more scenarios are being realized in the context of military-civilian integration or multi-task. This not only improves the effectiveness of military operations, but also brings unprecedented convenience and development opportunities to the civilian field. In the future, it is expected that there will be more practical needs for real-time multi-task response on orbit.

However, the current on-orbit reconstruction cannot meet the timely response requirements of payload mission iterations.

In view of the above problems, on the one hand, the solution of adding uplink channels can partially alleviate the problem, but for radar satellites, detection satellites, etc., there is no dedicated user high-speed communication uplink. Therefore, according to this idea, additional communication payloads need to be added. In addition, transmitting payload mission data through other channels such as intersatellite links may increase the hardware cost on the one hand, and on the other hand, the payload mission data must be transmitted to the payload subsystem through the integrated electronic subsystem, rather than the payload subsystem itself being responsible for receiving and judging the payload mission reconstruction data, which undoubtedly increases the intermediate interaction time and the risk of open interfaces.

Summary of the invention

In view of the above-mentioned deficiencies in the prior art, the present invention provides an on-orbit real-time mission response system and method based on perception and communication integration, and also provides a corresponding computer terminal and computer-readable storage medium.

According to one aspect of the present invention, there is provided an on-orbit real-time mission response system based on perception and communication integration, comprising:

A comprehensive processing unit, which is used to obtain a short instruction for load task switching through a satellite-to-ground measurement and control link, and after judging the short instruction for load task switching, send it to a load management unit;

A load management unit, the unit being used to switch channels according to the load task switching short instruction of the integrated processing unit;

A perception and communication integrated processing unit, which is used to obtain a perception and communication integrated signal carrying a task reconstruction data packet through channel tracking switched by the load management unit, demodulate and parse the signal to obtain a task reconstruction data packet and store a task reconstruction data bit stream;

A digital stand-alone reconstruction control unit, which is used to perform packet analysis and data verification on the task reconstruction data bit stream obtained after processing by the perception and communication integrated processing unit, obtain the payload task data that has passed the authentication verification, extract the task reconstruction parameters, and distribute them to the payload stand-alone configuration unit;

A load stand-alone configuration unit is used to configure load task parameters according to the obtained load task data and task reconstruction parameters to construct a new load task.

Preferably, the integrated processing unit parses the load task switching short instruction, extracts the switching enable bit, and determines whether the enable is valid; if the enable is valid, the task switching short instruction is sent to the load management module; if the enable is not valid, it is discarded.

Preferably, the sensory communication integrated processing unit comprises: an integrated channel processing module, an integrated signal processing module and an integrated data reconstruction storage module; wherein:

The integrated channel processing module is used to pre-process the perception communication integrated signal carrying the task reconstruction data packet and switch the load antenna working mode;

The integrated signal processing module is used to demodulate and analyze the pre-processed perception communication integrated signal to obtain a task reconstruction data packet;

The integrated data reconstruction storage module is used to store and verify the task reconstruction data bit stream.

Preferably, the integrated channel processing module comprises: an integrated phased array antenna, a channel switching mode management module and a tracking and scanning control module; wherein:

The integrated phased array antenna adopts a transmitting and receiving sharing system, and is used to switch the load antenna working mode according to the task switching short instruction issued by the integrated processing unit when the task reconstruction data packet needs to be loaded;

The channel switching mode management module is used to perform multi-step preprocessing on signals whose coverage range is dynamically greater than a set threshold and whose signal sensitivity is lower than the lower limit of the noise floor, so as to obtain a communication signal that is adapted to the power range of the sensing detection signal;

The tracking and scanning control module is used to switch channels and convert the working mode of the payload antenna from the fan scanning mode to the resident mode.

Preferably, the integrated phased array antenna comprises a plurality of polarization switching modules and their corresponding transceiver antenna units; wherein each of the polarization switching modules is connected to its corresponding transceiver antenna unit via a blind-plug connector, so as to realize left-handed or right-handed circularly polarized transmission and reception of signals, and at the same time, narrowband or broadband signal transmission and narrowband or broadband signal reception are realized by switching on corresponding filters, and the resident frequency point is screened and set according to the frequency band range and characteristics of the perception payload and the upload data rate requirements.

Preferably, in the integrated signal processing module, a soft processing method is used to demodulate and analyze the pre-processed perception communication integrated signal, including: integrated pre-processing, filtering, synchronization, demodulation and decoding;

in:

The integrated preprocessing adopts a multi-step preprocessing method of grading, smoothing and tracking feedback processing to eliminate processing glitches caused by heterogeneous signal differences;

The filtering is used to filter out useless signals and assist in the real-time estimation and prediction of channel status, and dynamically adjust tracking parameters according to changes in heterogeneous channels;

The synchronization is used to eliminate differences in heterogeneous channel processing, eliminate errors caused by time deviation or rate mismatch, and identify and extract valid bit positions;

The demodulation and decoding are used to restore the original data and perform decoding processing according to the characteristics of the integrated signal and the channel.

Preferably, the integrated data reconstruction storage module includes: a data storage submodule and a data verification submodule; wherein:

The data storage submodule is used to determine whether the data bit stream reconstructed by an upload task is completed; if not, further determine whether to enter the shutdown countdown or exit countdown; if yes, store the data bit stream reconstructed by the upload task in the corresponding storage area;

The data verification submodule is used to verify and check the task reconstruction data bits after storage; if the verification is correct, check whether the number of bits conforms to the number of data packet frames. If the verification shows excess tail data, truncate the bits according to the verification result; if the verification is correct or the excess tail data processing is completed, retain the storage result; if frame loss or verification error occurs, the ground station repeatedly injects the task reconstruction data packet until the number of frames of the data packet in the storage area is correct and the verification is correct.

According to another aspect of the present invention, there is provided an on-orbit real-time mission response method based on perception and communication integration, comprising:

Obtaining a load task switching instruction through a satellite-to-ground measurement and control link, and making a judgment on the load task switching instruction;

Perform channel switching according to the determined load task switching instruction;

Acquire the perception communication integrated signal carrying the task reconstruction data packet through the switched channel tracking, perform integrated demodulation and analysis processing on the signal to obtain the task reconstruction data packet and store the task reconstruction data bit stream;

Perform package analysis and data verification on the task reconstruction data bit stream obtained after the integrated processing, obtain the payload task data that has passed the authentication verification, and obtain the task reconstruction parameters;

Based on the obtained load task data and task reconstruction parameters, load task parameters are configured to construct a new load task.

According to a third aspect of the present invention, there is provided a computer terminal comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, can be used to execute the system described in any one of the above-mentioned embodiments of the present invention, or to execute the method described in the above-mentioned embodiments of the present invention.

According to a fourth aspect of the present invention, there is provided a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, it can be used to run the system described in any one of the above-mentioned systems of the present invention, or to execute the method described in the above-mentioned methods of the present invention.

Due to the adoption of the above technical solution, the present invention has at least one of the following beneficial effects compared with the prior art:

The on-orbit real-time task response system and method based on perception and communication integration provided by the present invention embeds a perception and communication integrated processing unit to implement integrated soft processing technology during on-orbit real-time task switching, and performs filtering, analysis and demodulation without adding hardware communication units, thereby solving the technical problems of high cost of multiple payloads and multiple hardware units and poor flexibility of traditional hardware, and realizing efficient and agile processing of perception and communication integrated signals without adding hardware communication units, thereby improving task execution efficiency and reliability.

The on-orbit real-time task response system and method based on perception and communication integration provided by the present invention selects and sets the resident frequency points according to the frequency band range and characteristics of the perception payload and the upload data rate requirements, adopts an integrated phased array antenna, and when it is necessary to upload reconstructed data, switches the antenna working mode according to the task switching short instruction issued by the integrated processing unit. Especially in the absence of a specific high-speed uplink communication link or communication payload, the technical problems of high cost of multiple payloads and multiple hardware units and poor flexibility of traditional hardware are solved, and efficient and agile processing of perception and communication integrated signals is achieved without increasing hardware communication units, thereby improving task execution efficiency and reliability.

The on-orbit real-time mission response system and method based on integrated perception and communication provided by the present invention can issue switching instructions in real time and start reconstructed data reception through a low-rate but highly secure measurement and control channel; the real-time nature of the reconstruction and the safety of the injection are ensured through the mutual cooperation of the measurement and control channel and the payload channel.

The on-orbit real-time mission response system and method based on integrated perception and communication provided by the present invention, on the one hand, solves the problem of on-orbit mission response of satellites without dedicated high-speed communication uplinks, and on the other hand, improves the sensitivity and timeliness of real-time switching response, breaks through the safety injection rate limit, and solves the current multi-task rapid response requirements.

The on-orbit real-time mission response system and method based on the integration of perception and communication provided by the present invention realizes common channel transmission in the uplink through feeding and polarization switching, RF transceiver phase shifting and beam control realized by the integrated phased array antenna, which is equivalent to establishing a covert communication channel in the perception channel; by adopting the integrated implementation method of perception communication with common channel and common demodulation soft processing, rather than common signal, compared with the common signal method, it has higher spectrum utilization, lower power consumption and smaller size, and has certain advantages in hardware simplification and improved flexibility.

The on-orbit real-time mission response system and method based on perception and communication integration provided by the present invention reduces the on-orbit reconstruction response time of satellite payloads, reduces the openness risk of on-orbit reconstruction, and improves the satellite mission switching response speed and the safety of on-orbit reconstruction of payloads.

Through the on-orbit real-time mission response system and method based on integrated perception and communication provided by the present invention, the onboard payload can autonomously receive mission reconstruction data and complete judgment and switching configuration operations, thereby reducing the time for satellite payload task switching and real-time response.

The on-orbit real-time task response system and method based on integrated perception and communication provided by the present invention allows the payload subsystem to autonomously receive reconstruction data and complete judgment, and directly reconfigure each single machine in the payload subsystem, further shortening the reconstruction response time and enhancing reliability.

The on-orbit real-time mission response system and method based on perception and communication integration provided by the present invention adopts perception and communication integration technology that is coordinated and integrated through multiple work processes such as integrated phased array antennas and perception and communication integrated signal soft processing to improve the rate and security of payload mission reconstruction data injection, so as to achieve real-time mission response. The mission response technology based on perception and communication integration uses measurement and control channel instructions to control the payload mission data receiving behavior, and uses the perception and communication co-channel method to transmit payload mission data. The measurement and control channel is controlled by the integrated processing unit, which improves the limitations of the low injection data rate of the existing channel and the safety risks of autonomous iteration of the payload.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG1 is a schematic diagram of component modules of an on-orbit real-time mission response system based on perception and communication integration in a preferred embodiment of the present invention.

FIG2 is a schematic diagram of the working structure of a perception communication integrated processing unit in a preferred embodiment of the present invention.

FIG3 is a schematic diagram of the working structure of a digital stand-alone reconstruction control unit in a preferred embodiment of the present invention.

FIG4 is a workflow diagram of an on-orbit real-time task response method based on perception and communication integration in a preferred embodiment of the present invention.

Detailed ways

The following is a detailed description of the embodiments of the present invention: This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

In view of the deficiencies in the prior art, an embodiment of the present invention provides an on-orbit real-time mission response system based on integrated perception and communication. The system uploads short instructions for task switching through a measurement and control channel with extremely low upload rate but high reliability, reconstructs data of payload tasks (such as radar payloads without device perception, device-based perception payloads, etc.) through a covert channel with integrated perception and communication, and uses an integrated phased array antenna for feeding and polarization switching, RF transmission and reception phase shifting and beam control to realize common channel transmission in the uplink, thereby ensuring the real-time nature of payload task reconstruction and the security of upload. The system can be applied to fields such as electronic reconnaissance, electronic jamming, active detection and two-way communication.

Specifically, as shown in FIG1 , the on-orbit real-time mission response system based on perception and communication integration provided in this embodiment may include the following functional units:

The integrated processing unit is used to obtain the payload task switching short instruction through the satellite-to-ground measurement and control link, and after judging the payload task switching short instruction, send it to the payload management unit;

A load management unit, which is used to switch channels according to the load task switching short instruction of the integrated processing unit;

A perception and communication integrated processing unit, which is used to obtain a perception and communication integrated signal carrying a task reconstruction data packet through channel tracking switched by a load management unit, demodulate and parse the signal to obtain a task reconstruction data packet and store a task reconstruction data bit stream;

A digital stand-alone reconstruction control unit, which is used to perform packet analysis and data verification on the task reconstruction data bit stream obtained after processing by the perception and communication integrated processing unit, obtain the payload task data that has passed the authentication verification, extract the task reconstruction parameters, and distribute them to the payload stand-alone configuration unit;

The load stand-alone configuration unit is used to configure the load task parameters according to the obtained load task data and task reconstruction parameters, build a new load task, and complete the load task response.

In some preferred implementations, the integrated processing unit parses the load task switching short instruction, extracts the switching enable bit, and determines whether it is enabled; if it is enabled, the task switching short instruction is sent to the load management module; if it is not enabled, it is discarded.

In some preferred embodiments, as shown in FIG2 , the sensory communication integrated processing unit includes: an integrated channel processing module, an integrated signal processing module and an integrated data reconstruction storage module; wherein:

An integrated channel processing module is used to pre-process the perception communication integrated signal carrying the task reconstruction data packet and switch the payload antenna working mode;

An integrated signal processing module is used to demodulate and analyze the pre-processed perception and communication integrated signal to obtain a task reconstruction data packet;

The integrated data reconstruction storage module is used to store and verify the task reconstruction data bit stream.

In some preferred embodiments, the integrated channel processing module includes: an integrated phased array antenna, a channel switching mode management module and a tracking and scanning control module; wherein:

The integrated phased array antenna adopts a common transmission and reception system. When the task needs to be reconstructed, the payload antenna working mode is switched according to the task switching short instructions issued by the integrated processing unit.

The channel switching mode management module is used to perform multi-step preprocessing on signals whose coverage range is dynamically greater than a set threshold and whose signal sensitivity is lower than the lower limit of the noise floor, so as to obtain a communication signal that is suitable for sensing and detecting signal power range;

The tracking and scanning control module is used to switch channels and convert the operating mode of the payload antenna from the fan scanning mode to the resident mode.

In some preferred embodiments, the integrated phased array antenna includes multiple polarization switching modules and their corresponding transceiver antenna units; wherein each polarization switching module is connected to its corresponding transceiver antenna unit through a blind-plug connector to realize left-handed or right-handed circularly polarized transmission and reception of signals, and at the same time, narrowband or broadband signal transmission and narrowband or broadband signal reception are realized by switching on corresponding filters, and the resident frequency point is screened and set according to the frequency band range and characteristics of the perception payload and the upload data rate requirements.

In some preferred embodiments, in the integrated signal processing module, a soft processing method is used to demodulate and analyze the preprocessed perception communication integrated signal, including: integrated preprocessing, filtering, synchronization, demodulation and decoding;

in:

Integrated preprocessing uses a multi-step preprocessing method of grading, smoothing and tracking feedback processing to further eliminate processing glitches caused by heterogeneous signal differences, improve tracking accuracy and stability, and improve signal-to-noise ratio and reliability.

Filtering is used to filter out useless signals and assist in the real-time estimation and prediction of channel status, and dynamically adjust tracking parameters according to changes in heterogeneous channels.

Synchronization is used to eliminate differences in heterogeneous channel processing and improve tracking accuracy and stability.

Demodulation and decoding are used to restore the original data and perform necessary decoding processing based on the characteristics of the integrated signal and channel, including error correction, descrambling, etc., to ensure the accuracy and integrity of the data.

In some preferred embodiments, the integrated data reconstruction storage module includes: a data storage submodule and a data verification submodule; wherein:

The data storage submodule is used to determine whether the data bit stream reconstructed by an upload task is completed; if not, further determine whether to enter the shutdown countdown or exit countdown; if yes, store the data bits reconstructed by the upload task in the corresponding storage area;

The data check submodule is used to check the task reconstruction data bits after storage; if the check is correct, check whether the number of bits conforms to the number of data packet frames. If the check shows excess tail data, truncate the bits according to the check result; if the check is correct or the excess tail data processing is completed, retain the storage result; if frame loss or check error occurs, the ground station repeatedly injects the task reconstruction data packet until the number of frames of the data packet in the storage area is correct and the check is correct.

In some preferred embodiments, as shown in FIG3 , the digital stand-alone reconstruction control unit first performs packet analysis on the task reconstruction data bit stream after integrated processing, and then performs authentication verification and judgment on the obtained load task data, and then extracts the task reconstruction parameters; and distributes the successfully verified load task data and task reconstruction parameters to the load stand-alone configuration unit.

The on-orbit real-time task response system based on perception and communication integration provided by the above embodiment of the present invention has the following working process:

The measurement and control channel uploads the switching command to the integrated processing unit;

The load management unit switches the antenna mode, stays at the frequency point, locks the direction of the fan scan, and switches the channel according to the switching instructions issued by the integrated processing unit;

The perception communication integrated processing unit pre-processes, filters, tracks, and synchronizes the signals transmitted by the switched channels until the signals are stably locked, while removing disturbances, demodulating, processing weak signals, and correcting information errors;

The digital stand-alone reconstruction control unit reconstructs the task reconstruction data bit stream obtained after the integrated processing, including tail processing, cache processing, exit processing, pre-shutdown processing, etc., to obtain the load task data and task reconstruction parameters;

The load stand-alone configuration unit is configured according to the load task data and task reconstruction parameters, builds a new load task, and completes the load task response.

An embodiment of the present invention provides an on-orbit real-time mission response method based on perception and communication integration.

Specifically, as shown in FIG4 , the on-orbit real-time task response method based on perception and communication integration provided in this embodiment may include the following operations:

S1, obtain the payload task switching instruction through the satellite-to-ground measurement and control link, and make a decision on the payload task switching instruction;

S2, switching channels according to the determined load task switching instruction;

S3, obtaining the perception communication integrated signal carrying the task reconstruction data packet through the switched channel tracking, performing integrated demodulation and analysis processing on the signal to obtain the task reconstruction data packet and storing the task reconstruction data bit stream;

S4, performing packet analysis and data verification on the task reconstruction data bit stream obtained after the integrated processing, obtaining the payload task data that has passed the authentication verification, and obtaining the task reconstruction parameters;

S5, based on the obtained load task data and task reconstruction parameters, load task parameters are configured, a new load task is constructed, and load task switching is completed.

It should be noted that the steps in the method provided by the present invention can be implemented by using corresponding modules, devices, units, etc. in the system. Those skilled in the art can refer to the technical solution of the system to implement the step flow of the method, that is, the embodiments in the system can be understood as preferred examples of implementing the method, which will not be elaborated here.

The technical solution provided by the above embodiment of the present invention is further described in detail below in conjunction with a specific application example.

This specific application example involves meteorological payloads and remote sensing payloads, and is implemented in scenarios where there is no high-speed communication uplink, satellite-to-ground feeder link (which can support an uplink transmission rate of Gbps) or satellite-to-ground user link (which can support an uplink transmission rate of 100Mbps), and where it is inconvenient to carry additional communication payloads.

The ground control station sends control instructions through the satellite-to-ground control link to switch the payload communication channel to frequency dwell. The frequency control module can select a dwell frequency of 1.6 GHz, which is reduced to 400 MHz after multi-stage filtering, low noise amplification, and down-conversion.

The payload task switching instruction is transmitted through the satellite-to-ground measurement and control link. The required data volume is 32Byte, which is the data packet containing the check bit, after substitution encryption, and then encapsulated by the frame header, which meets the requirements of the measurement and control communication protocol.

Furthermore, the integrated processing unit of perception communication is used to complete the integrated channel switching through tracking and scanning control. Through the integrated preprocessing, filtering and synchronization of the integrated signal processing module, until the signal is stably locked, disturbances are removed, demodulation and weak signal processing are performed, and signal analysis and data extraction of the integrated channel transmission are completed. Among them:

The integrated signal processing module completes the correct demodulation and analysis of the perception communication integrated signal carrying the task reconstruction data packet. The main steps include: integrated preprocessing, filtering, synchronization, demodulation, decoding, etc.

The integrated data reconstruction storage module determines whether an upload is completed, and whether it will enter the shutdown countdown or exit countdown within 2 minutes if it is not completed; if so, the data is stored in the corresponding storage area. After the reconstructed data packet is stored in the corresponding storage area, the reconstructed data is checked. If the check is correct, check whether the number of bits matches the number of data packet frames. If there is excess data at the end, truncate it according to the check result; after the check is correct or the tail processing is completed, retain the storage result. If frame loss or verification error occurs, the ground station repeatedly injects the reconstructed data packet until the number of frames of the reconstructed data packet in the storage area is correct and the verification is correct.

The integrated channel processing module, including the integrated signal preprocessing submodule, performs multi-step preprocessing such as grading, smoothing, and feedback on signals with a large dynamic range (the dynamic range covered by the variation range is greater than the set threshold) and a signal sensitivity lower than the lower limit of the noise floor by 15db (the signal sensitivity is lower than the lower limit of the noise floor), to ensure that the communication signals within the power range of the perception detection signals (such as radar signals) are adapted and correctly demodulated and decoded; the fan-scanning dwell frequency control submodule is used to switch the payload communication channel to the frequency dwell mode.

A digital stand-alone reconstruction control unit is used to verify and parse the bit data transmitted by the perception and communication integrated processing unit, and distribute the verified reliable reconstruction instructions to the payload stand-alone configuration unit, so that the payload stand-alone configuration unit can complete the payload task reconstruction.

A payload stand-alone configuration unit is used to start the perception and communication integrated processing unit according to the task switching instruction of the comprehensive processing unit, switch the covert communication high-speed channel, receive the reconstructed data upload, and send the reconstructed data to the digital stand-alone reconstruction control unit.

An integrated processing unit is used to receive short task switching instructions injected into the measurement and control channel.

The integrated processing unit transmits the load task switching command through the satellite-to-ground measurement and control link and directly transmits it to the integrated electronic module. After the integrated electronic module makes a judgment, it sends the command to the load management unit to switch the antenna mode, lock the fan scanning direction, stay at the frequency point, and complete the channel conversion.

Through the implementation of the above specific application examples, it can be known that by transmitting communication signals in an uplink channel with wide-band pulse signal characteristics, a covert communication channel is established, and at an uplink transmission rate of Mbps, the payload task reconstruction data can be uploaded within 2.4s~10min (depending on the task amount and the size of the payload storage data). Compared with the traditional measurement and control link (2kbps), more than 30 orbits are required for one upload, and even if the low-Earth orbit satellite is revisited at 1.5h, it will take at least 2 days. The above embodiments of the present invention can be applied to various scenarios such as on-orbit mission reconstruction and covert communication, and can effectively improve the payload's ability to respond quickly and flexibly switch tasks.

An embodiment of the present invention provides a computer terminal, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it can be used to run the system of any one of the above embodiments of the present invention, or execute any one of the methods of the above embodiments of the present invention.

Optionally, the memory is used to store programs; the memory may include volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviated: RAM), such as static random access memory (English: static random-access memory, abbreviated: SRAM), double data rate synchronous dynamic random access memory (English: Double Data Rate Synchronous Dynamic Random Access Memory, abbreviated: DDR SDRAM), etc.; the memory may also include non-volatile memory (English: non-volatile memory), such as flash memory (English: flash memory). The memory is used to store computer programs (such as applications, functional modules, etc. that implement the above method), computer instructions, etc., and the above computer programs, computer instructions, etc. can be partitioned and stored in one or more memories. And the above computer programs, computer instructions, data, etc. can be called by the processor.

The above-mentioned computer programs, computer instructions, etc. may be stored in one or more memories in partitions, and the above-mentioned computer programs, computer instructions, data, etc. may be called by a processor.

The processor is used to execute the computer program stored in the memory to implement the various steps of the method or various modules of the system involved in the above embodiments. For details, please refer to the relevant descriptions in the above method and system embodiments.

The processor and the memory may be independent structures or integrated structures. When the processor and the memory are independent structures, the memory and the processor may be coupled and connected via a bus.

An embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, it can be used to run the system of any one of the above embodiments of the present invention, or to execute the method of any one of the above embodiments of the present invention.

The on-orbit real-time task response system and method based on perception and communication integration provided by the above-mentioned embodiments of the present invention can play a more obvious role in scenarios where there is no high-speed communication uplink, satellite-to-ground feeder link (supporting Gbps uplink transmission rate), or satellite-to-ground user link (supporting 100Mbps uplink transmission rate), and it is inconvenient to carry additional communication payloads. At the same time, the system also places the switching or reconstruction tasks of the payload tasks directly in the payload and completes them autonomously, which is more efficient and safer. It is applicable to payloads of meteorological satellites, remote sensing satellites, detection satellites, etc. The system can adapt to working modes with multiple frequencies and multiple usage requirements such as electronic reconnaissance, electronic interference, active detection and two-way communication. It is an essential and basic innovative technology in the construction of integrated communication, navigation and remote sensing constellations at the forefront of current aerospace development.

The on-orbit real-time mission response system and method based on the integration of perception and communication provided by the above-mentioned embodiment of the present invention realizes common channel transmission in the uplink through integrated phased array antenna feeding and polarization switching, RF transceiver phase shifting, and beam control, and establishes a covert communication channel in the perception channel (such as radar signal); the payload subsystem autonomously receives the reconstructed data and completes the judgment, and directly reconstructs the configuration for each single machine in the payload subsystem; adopts a transceiver sharing system, and each polarization switching module is connected to the corresponding transceiver antenna unit through a blind plug connector to realize left-handed or right-handed circular polarization transmission and reception of the signal, and at the same time, the corresponding filter is selected by the switch to realize narrowband or broadband signal transmission and narrowband or broadband signal reception; the channel is switched by the frequency control module, and the working mode of the payload antenna is converted from fan scanning to resident mode.

All matters not covered in the above embodiments of the present invention are well known in the art.

The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art may make various modifications or variations within the scope of the claims, which do not affect the essence of the present invention.

Claims (10)

1. An on-orbit real-time mission response system based on integrated perception and communication, characterized by comprising: A comprehensive processing unit, which is used to obtain a short instruction for load task switching through a satellite-to-ground measurement and control link, and after judging the short instruction for load task switching, send it to a load management unit; A load management unit, the unit being used to switch channels according to the load task switching short instruction of the integrated processing unit; A perception and communication integrated processing unit, which is used to obtain a perception and communication integrated signal carrying a task reconstruction data packet through channel tracking switched by the load management unit, demodulate and parse the signal to obtain a task reconstruction data packet and store a task reconstruction data bit stream; A digital stand-alone reconstruction control unit, which is used to perform packet analysis and data verification on the task reconstruction data bit stream obtained after processing by the perception and communication integrated processing unit, obtain the payload task data that has passed the authentication verification, extract the task reconstruction parameters, and distribute them to the payload stand-alone configuration unit; A load stand-alone configuration unit is used to configure load task parameters according to the obtained load task data and task reconstruction parameters to construct a new load task. 2. According to the on-orbit real-time task response system based on perception and communication integration according to claim 1, it is characterized in that the comprehensive processing unit parses the payload task switching short instruction, extracts the switching enable bit, and determines whether the enablement is valid; if the enablement is valid, the task switching short instruction is sent to the payload management module; if the enablement is not valid, it is discarded. 3. The on-orbit real-time mission response system based on perception and communication integration according to claim 1 is characterized in that the perception and communication integration processing unit comprises: an integrated channel processing module, an integrated signal processing module and an integrated data reconstruction storage module; wherein: The integrated channel processing module is used to pre-process the perception communication integrated signal carrying the task reconstruction data packet and switch the load antenna working mode; The integrated signal processing module is used to demodulate and analyze the pre-processed perception communication integrated signal to obtain a task reconstruction data packet; The integrated data reconstruction storage module is used to store and verify the task reconstruction data bit stream. 4. The on-orbit real-time mission response system based on perception and communication integration according to claim 3 is characterized in that the integrated channel processing module includes: an integrated phased array antenna, a channel switching mode management module and a tracking and scanning control module; wherein: The integrated phased array antenna adopts a transmitting and receiving sharing system, and is used to switch the load antenna working mode according to the task switching short instruction issued by the integrated processing unit when the task reconstruction data packet needs to be loaded; The channel switching mode management module is used to perform multi-step preprocessing on signals whose coverage range is dynamically greater than a set threshold and whose signal sensitivity is lower than the lower limit of the noise floor, so as to obtain a communication signal that is adapted to the power range of the sensing detection signal; The tracking and scanning control module is used to switch channels and convert the working mode of the payload antenna from the fan scanning mode to the resident mode. 5. According to claim 4, the on-orbit real-time mission response system based on perception and communication integration is characterized in that the integrated phased array antenna includes multiple polarization switching modules and their corresponding transceiver antenna units; wherein each of the polarization switching modules is connected to its corresponding transceiver antenna unit through a blind plug connector to realize left-handed or right-handed circular polarization transmission and reception of signals, and at the same time, narrowband or broadband signal transmission and narrowband or broadband signal reception are realized by switching the corresponding filter, and the resident frequency point is screened and set according to the frequency band range and characteristics of the perception payload and the upload data rate requirements. 6. The on-orbit real-time mission response system based on perception and communication integration according to claim 3 is characterized in that, in the integrated signal processing module, a soft processing method is adopted to demodulate and analyze the pre-processed perception and communication integrated signal, including: integrated preprocessing, filtering, synchronization, demodulation and decoding; in: The integrated preprocessing adopts a multi-step preprocessing method of grading, smoothing and tracking feedback processing to eliminate processing glitches caused by heterogeneous signal differences; The filtering is used to filter out useless signals and assist in the real-time estimation and prediction of channel status, and dynamically adjust tracking parameters according to changes in heterogeneous channels; The synchronization is used to eliminate differences in heterogeneous channel processing, eliminate errors caused by time deviation or rate mismatch, and identify and extract valid bit positions; The demodulation and decoding are used to restore the original data and perform decoding processing according to the characteristics of the integrated signal and the channel. 7. The on-orbit real-time mission response system based on perception and communication integration according to claim 3 is characterized in that the integrated data reconstruction storage module comprises: a data storage submodule and a data verification submodule; wherein: The data storage submodule is used to determine whether the data bit stream reconstructed by an upload task is completed; if not, further determine whether to enter the shutdown countdown or exit countdown; if yes, store the data bit stream reconstructed by the upload task in the corresponding storage area; The data verification submodule is used to verify and check the task reconstruction data bits after storage; if the verification is correct, check whether the number of bits conforms to the number of data packet frames. If the verification shows excess tail data, truncate the bits according to the verification result; if the verification is correct or the excess tail data processing is completed, retain the storage result; if frame loss or verification error occurs, the ground station repeatedly injects the task reconstruction data packet until the number of frames of the data packet in the storage area is correct and the verification is correct. 8. An on-orbit real-time mission response method based on perception and communication integration, characterized by comprising: Obtaining a load task switching instruction through a satellite-to-ground measurement and control link, and making a judgment on the load task switching instruction; Perform channel switching according to the determined load task switching instruction; Acquire the perception communication integrated signal carrying the task reconstruction data packet through the switched channel tracking, perform integrated demodulation and analysis processing on the signal to obtain the task reconstruction data packet and store the task reconstruction data bit stream; Perform package analysis and data verification on the task reconstruction data bit stream obtained after the integrated processing, obtain the payload task data that has passed the authentication verification, and obtain the task reconstruction parameters; Based on the obtained load task data and task reconstruction parameters, load task parameters are configured to construct a new load task. 9. A computer terminal, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor can be used to execute the system described in any one of claims 1 to 7, or to execute the method described in claim 8 when executing the computer program. 10. A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, can be used to run the system according to any one of claims 1 to 7, or to execute the method according to claim 8.