CN118249896A - On-orbit real-time task response system and method based on sensing communication integration - Google Patents
On-orbit real-time task response system and method based on sensing communication integration Download PDFInfo
- Publication number
- CN118249896A CN118249896A CN202410645609.8A CN202410645609A CN118249896A CN 118249896 A CN118249896 A CN 118249896A CN 202410645609 A CN202410645609 A CN 202410645609A CN 118249896 A CN118249896 A CN 118249896A
- Authority
- CN
- China
- Prior art keywords
- task
- load
- integrated
- data
- reconstruction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000006854 communication Effects 0.000 title claims abstract description 102
- 238000004891 communication Methods 0.000 title claims abstract description 102
- 230000004044 response Effects 0.000 title claims abstract description 53
- 230000010354 integration Effects 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000012545 processing Methods 0.000 claims abstract description 96
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 230000035945 sensitivity Effects 0.000 claims abstract description 7
- 230000008447 perception Effects 0.000 claims description 25
- 230000015654 memory Effects 0.000 claims description 22
- 238000005259 measurement Methods 0.000 claims description 21
- 238000007726 management method Methods 0.000 claims description 20
- 238000007781 pre-processing Methods 0.000 claims description 16
- 238000004590 computer program Methods 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 14
- 230000010287 polarization Effects 0.000 claims description 14
- 238000004458 analytical method Methods 0.000 claims description 13
- 238000013524 data verification Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 8
- 238000013500 data storage Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- 238000009499 grossing Methods 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 3
- 230000001149 cognitive effect Effects 0.000 claims 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000006870 function Effects 0.000 abstract description 2
- 230000003993 interaction Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 7
- 238000012795 verification Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013075 data extraction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
Abstract
The invention provides an on-orbit real-time task response system and method based on sensing communication integration, comprising the following steps: the comprehensive processing unit acquires a load task switching instruction; the load management unit performs channel conversion according to the load task switching instruction; the sensing communication integrated processing unit tracks and acquires sensing communication integrated signals of the load carrying task reconstruction data packet; the digital single machine reconstruction control unit is combined with integrated processing to analyze and check to obtain load task data, so that task reconstruction parameters are extracted; the load single machine configuration unit carries out load task parameter configuration and builds new task functions. The invention realizes that the perceived load can autonomously receive the reconstruction data of the task response, complete the judgment and the configuration response operation, reduces strategies such as intermediate interaction, hidden transmission and the like by improving the uploading rate, jointly reduces the task switching time of the on-board load software, improves the sensitivity and the instantaneity of the load task response, and meets the requirement of quick response of the on-track task.
Description
Technical Field
The invention relates to the technical field of sensing communication integration and on-orbit task response, in particular to an on-orbit real-time task response system and method based on sensing communication integration, and simultaneously relates to a corresponding computer terminal and a computer readable storage medium.
Background
To cope with the complexity of the space environment, satellite technology is continually improving and optimizing. In the traditional application, in order to improve the running reliability of the spacecraft, when soft faults occur in on-orbit running, the load is reconstructed on-orbit as an important means for guaranteeing the running stability when reversible anomalies recovered through code re-writing; however, the existing on-track reconstruction technology basically adopts a mode of injecting reconstruction data on a measurement and control link, and the mode generally has the problem of low uplink injection rate. The problem of the recovery of the brush writing caused by the early simple single-event upset can be met to a certain extent. However, as the data volume and complexity of task reconstruction increase in recent years, the measurement and control channel uploading often needs tens of tracks to complete all reconstruction data uploading, which brings disadvantages to the current load function upgrading, not only increases the additional processing cost of on-track data storage, calculation and the like, but also can not reconstruct in real time if a slightly complicated operation abnormality occurs.
In addition, with the rapid development of aerospace technology, more scenes are being realized in a military and civil fusion or multitasking background. Not only improves the efficiency of military operations, but also brings unprecedented convenience and development opportunity to the civil field, and is expected to bring more practical demands of on-orbit real-time multitasking response in the future.
The current on-orbit reconstruction cannot meet the timely response requirement of load task iteration.
In view of the above problems, on the one hand, the solution of adding the upper-injection path can partially alleviate the problems, but for radar satellites, detection satellites, and the like, there is no special uplink for high-speed communication of users, and thus, according to such a concept, additional communication load needs to be added. In addition, the load task data is transmitted through other channels such as inter-satellite links, so that the processing can increase the hardware cost, and the load task data must be transmitted to the load subsystem through the comprehensive electronic subsystem instead of the load subsystem itself being responsible for receiving and judging the load task reconstruction data, which increases the intermediate interaction time and the risk of opening an interface.
Disclosure of Invention
The invention aims at the defects in the prior art, provides an on-orbit real-time task response system and method based on sensing communication integration, and simultaneously provides a corresponding computer terminal and a corresponding computer readable storage medium.
According to one aspect of the present invention, there is provided an on-orbit real-time task response system based on integration of perceptual communication, comprising:
the comprehensive processing unit is used for acquiring a load task switching short instruction through a satellite-to-ground measurement and control link, judging the load task switching short instruction and then issuing the load task switching short instruction to the load management unit;
the load management unit is used for switching channels according to the load task switching short instruction of the comprehensive processing unit;
The sensing communication integrated processing unit is used for acquiring sensing communication integrated signals carrying task reconstruction data packets through channel tracking switched by the load management unit, demodulating and analyzing the signals to obtain the task reconstruction data packets and storing task reconstruction data bit streams;
The digital single machine reconstruction control unit is used for carrying out packet analysis and data verification on the task reconstruction data bit stream obtained after the processing of the perception communication integrated processing unit, obtaining load task data successfully authenticated and verified, extracting task reconstruction parameters and distributing the task reconstruction data to the load single machine configuration unit;
And the load single machine configuration unit is used for carrying out load task parameter configuration according to the obtained load task data and task reconstruction parameters and constructing a new load task.
Preferably, the integrated processing unit analyzes the short instruction of load task switching, extracts the switching enabling bit, and judges whether the enabling bit is effective; if the enabling is effective, a task switching short instruction is sent to the load management module; if not, the enable is discarded.
Preferably, the perceptual communication integrated processing unit comprises: the integrated channel processing module, the integrated signal processing module and the integrated data reconstruction storage module; wherein:
the integrated channel processing module is used for preprocessing a sensing communication integrated signal of the load-bearing task reconstruction data packet and switching a load antenna working mode;
The integrated signal processing module is used for demodulating and analyzing the preprocessed perception communication integrated signal to obtain a task reconstruction data packet;
The integrated data reconstruction storage module is used for storing and checking the task reconstruction data bit stream.
Preferably, the integrated channel processing module comprises: the system comprises an integrated phased array antenna, a channel switching mode management module and a tracking scanning control module; wherein:
the integrated phased array antenna adopts a receiving and transmitting shared system and is used for switching the working mode of the load antenna according to a task switching short instruction issued by the comprehensive processing unit when a task reconstruction data packet is required to be uploaded;
The channel switching mode management module is used for carrying out multi-step preprocessing on signals with the coverage dynamic of a change range being larger than a set threshold value and the signal sensitivity being lower than the lower limit of the noise substrate to obtain communication signals in a power range suitable for sensing detection signals;
the tracking scanning control module is used for converting channels and converting the working mode of the load antenna from a sector scanning mode to a resident mode.
Preferably, the integrated phased array antenna comprises a plurality of polarization switching modules and corresponding transceiver antenna units thereof; each polarization switching module is connected with a corresponding receiving and transmitting antenna unit through a blind-plug connector and is used for realizing left-handed or right-handed circular polarization transmission and receiving of signals, and meanwhile, a switch gating corresponding filter is used for realizing narrow-band or broadband signal transmission and narrow-band or broadband signal receiving, and resident frequency points are screened and set according to the range and characteristics of a sensing load frequency band and the requirements of uploading data rate.
Preferably, in the integrated signal processing module, a soft processing manner is adopted to demodulate and parse the preprocessed perceptual communication integrated signal, including: integrated preprocessing, filtering, synchronizing, demodulating and decoding;
Wherein:
the integrated pretreatment adopts a multi-step pretreatment mode of grading, smoothing and tracking feedback treatment and is used for eliminating treatment burrs caused by heterogeneous signal differences;
The filtering is used for filtering useless signals and assisting in realizing real-time estimation and prediction of the channel state, and tracking parameters are dynamically adjusted according to the change condition of heterogeneous channels;
The synchronization is used for eliminating heterogeneous channel processing difference, eliminating errors caused by time deviation or rate mismatch, and identifying and extracting effective bit positions;
the demodulation and decoding are used for restoring the original data and performing decoding processing according to the characteristics of the integrated signal and the channel.
Preferably, the integrated data reconstruction storage module includes: a data storage sub-module and a data verification sub-module; wherein:
The data storage sub-module is used for judging whether the reconstruction data bit stream of the one-time uploading task is completed or not; if not, further judging whether to enter shutdown countdown or outbound countdown; if yes, storing the reconstruction data bit of the uploading task into a corresponding storage area;
The data verification sub-module is used for verifying and checking the stored task reconstruction data bits; if the check is correct, checking whether the bit number accords with the data packet frame number, and if the check shows that the tail redundant data exists, cutting bits according to the check result; if the checking is correct or the tail redundant data processing is completed, reserving a storage result; if frame loss or check errors occur, the ground station repeatedly injects task reconstruction data packets until the number of frames of the data packets in the storage area is correct and the check is correct.
According to another aspect of the invention, there is provided an on-orbit real-time task response method based on integration of perceptual communication, comprising:
Acquiring a load task switching instruction through a satellite-ground measurement and control link, and judging the load task switching instruction;
channel switching is carried out according to the judged load task switching instruction;
Acquiring a perception communication integrated signal carrying a task reconstruction data packet through channel tracking after switching, carrying out integrated demodulation and analysis processing on the signal to obtain the task reconstruction data packet, and storing a task reconstruction data bit stream;
Carrying out packet analysis and data verification on the task reconstruction data bit stream obtained after the integrated processing to obtain load task data successfully authenticated and verified, and obtaining task reconstruction parameters;
And carrying out load task parameter configuration based on the obtained load task data and task reconstruction parameters, and constructing 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 on the memory and executable on the processor, the processor when executing the computer program being operable to run the system of any one of the above described invention or to perform the method of any one of the above described invention.
According to a fourth aspect of the present invention there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, is operative to run the system of any of the above described aspects of the present invention or to perform the method of any of the above described aspects of the present invention.
Due to the adoption of the technical scheme, compared with the prior art, the invention has at least one of the following beneficial effects:
according to the on-orbit real-time task response system and method based on the perception communication integration, in the work of on-orbit real-time task switching, the embedded perception communication integration processing unit is used for realizing the integrated soft processing technology, filtering and analysis demodulation are carried out, a hardware communication unit is not added, the technical problems of high cost of a plurality of load and hardware units and poor flexibility of traditional hardware are solved, efficient and quick processing of perception communication integration signals is realized under the condition that the hardware communication unit is not added, and the task execution efficiency and reliability are improved.
According to the on-orbit real-time task response system and method based on the sensing communication integration, the resident frequency point is screened and set according to the sensing load frequency range and the characteristics and the uploading data rate requirement, the integrated phased array antenna is adopted, when reconstruction data is needed to be uploaded, the antenna working mode is switched according to the task switching short instruction issued by the integrated processing unit, and particularly, the technical problems of high cost of a multi-load multi-hardware unit and poor flexibility of traditional hardware are solved under the condition that a specific high-speed uplink communication link or communication load is not available, efficient and quick processing of the sensing communication integration signal is achieved under the condition that the hardware communication unit is not added, and task execution efficiency and reliability are improved.
According to the on-orbit real-time task response system and method based on the perception communication integration, provided by the invention, a switching instruction is injected in real time through a low-speed but high-safety measurement and control channel, and the reconstruction data is started to be received; and the reconstruction instantaneity and the uploading safety are ensured through the mutual matching of the measurement and control channel and the load channel.
The on-orbit real-time task response system and method based on the perception communication integration provided by the invention solve the problem of satellite on-orbit task response without a special high-speed communication uplink, improve the sensitivity and timeliness of real-time switching response, break through the safety uploading rate limit and solve the current multi-task quick response requirement.
The on-orbit real-time task response system and method based on the integration of sensing communication, provided by the invention, realize the co-channel transmission in the uplink through the feed and polarization switching, the radio frequency receiving and transmitting phase shifting and the beam control realized by the integrated phased array antenna, and the effect is equivalent to that of establishing a hidden communication channel in a sensing channel; the integrated mode of the sensing communication adopting the co-channel and the co-demodulation soft processing is adopted instead of the co-signal mode, and compared with the co-signal mode, the integrated mode of the sensing communication adopting the co-channel and the co-demodulation soft processing is adopted instead of the co-signal mode. Compared with a co-signal mode, the method has the advantages of higher spectrum utilization rate, lower power consumption, smaller volume, certain hardware simplification, flexibility improvement and the like.
The on-orbit real-time task response system and method based on the perception communication integration reduces the on-orbit reconstruction response time of satellite load, reduces the openness risk of on-orbit reconstruction, and improves the switching response speed of satellite tasks and the safety of on-orbit reconstruction of the load.
By the on-orbit real-time task response system and the on-orbit real-time task response method based on the perception communication integration, the satellite load can autonomously receive task reconstruction data and complete judgment and switching configuration operation, and the time for switching and real-time response of the satellite load task is reduced.
According to the on-orbit real-time task response system and method based on the perception communication integration, the load subsystem receives reconstruction data autonomously and completes judgment, and reconstruction configuration is directly carried out on each single machine in the load subsystem. The reconstruction response time is further shortened and the reliability is enhanced.
The on-orbit real-time task response system and method based on the sensing communication integration, provided by the invention, adopt a sensing communication integration technology which is designed in an integrated manner by matching and integrating a plurality of workflows such as an integrated phased array antenna, sensing communication integration signal soft processing and the like, so as to improve the speed and the safety of uploading load task reconstruction data, thereby realizing the real-time task response. The task response technology based on the integration of the sensing communication utilizes the measurement and control channel instruction to control the receiving behavior of the load task data, and utilizes the sensing communication co-channel mode to transmit the load task data. The measurement and control channel is controlled by the comprehensive processing unit, so that the limitation of low uploading data rate of the existing channel and the potential safety hazard of autonomous load iteration are improved.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
fig. 1 is a schematic diagram of the components of an on-orbit real-time task response system based on the integration of sensing communication in a preferred embodiment of the invention.
Fig. 2 is a schematic diagram of the operation structure of the integrated processing unit for sensing communication according to a preferred embodiment of the present invention.
Fig. 3 is a schematic diagram showing the operation structure of the digital stand-alone reconstruction control unit according to a preferred embodiment of the present invention.
FIG. 4 is a workflow diagram of an on-orbit real-time task response method based on integration of perceptual communication in a preferred embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in detail: the embodiment is implemented on the premise of the technical scheme of the invention, and detailed implementation modes and specific operation processes are given. It should be noted that variations and modifications can be made by those skilled in the art without departing from the spirit of the invention, which falls within the scope of the invention.
Aiming at the defects existing in the prior art, the embodiment of the invention provides an on-orbit real-time task response system based on the integration of sensing communication, which uploads a task switching short instruction through a measurement and control channel with extremely low uploading speed and high reliability, uploads reconstruction data of a load task (such as a non-equipment sensing type such as radar load and a sensing type load based on equipment) through a hidden channel with the integration of sensing communication, utilizes an integrated phased array antenna to carry out feeding and polarization switching, radio frequency transceiving phase shifting and beam control, realizes uplink co-channel transmission, ensures load task reconstruction instantaneity and uploading safety, and can be applied to the fields of electronic reconnaissance, electronic interference, active detection, bidirectional communication and the like.
Specifically, as shown in fig. 1, the on-orbit real-time task response system based on the integration of sensing communication provided in this embodiment may include the following functional units:
The comprehensive processing unit is used for acquiring a load task switching short instruction through the satellite-to-ground measurement and control link, judging the load task switching short instruction and then transmitting the load task switching short instruction to the load management unit;
The load management unit is used for switching channels according to the load task switching short instruction of the comprehensive processing unit;
The sensing communication integrated processing unit is used for acquiring sensing communication integrated signals carrying task reconstruction data packets through channel tracking switched by the load management unit, demodulating and analyzing the signals to obtain the task reconstruction data packets and storing task reconstruction data bit streams;
the digital single machine reconstruction control unit is used for carrying out packet analysis and data verification on the task reconstruction data bit stream obtained after being processed by the perception communication integrated processing unit, obtaining load task data successfully authenticated and verified, extracting task reconstruction parameters and distributing the task reconstruction data to the load single machine configuration unit;
And the load single machine configuration unit is used for carrying out load task parameter configuration according to the obtained load task data and task reconstruction parameters, constructing a new load task and completing load task response.
In some preferred embodiments, the integrated processing unit parses the load task switch short instruction, extracts the switch enable bit, and determines whether the enable is valid; if the enabling is effective, a task switching short instruction is sent to the load management module; if not, the enable is discarded.
In a part of the preferred embodiments, as shown in fig. 2, the perception communication integrated processing unit includes: the integrated channel processing module, the integrated signal processing module and the integrated data reconstruction storage module; wherein:
The integrated channel processing module is used for preprocessing the sensing communication integrated signal of the load-bearing task reconstruction data packet and switching the working mode of the load antenna;
The integrated signal processing module is used for demodulating and analyzing the preprocessed perception communication integrated signal to obtain a task reconstruction data packet;
and the integrated data reconstruction storage module is used for storing and checking the task reconstruction data bit stream.
In a part of the preferred embodiments, the integrated channel processing module comprises: the system comprises an integrated phased array antenna, a channel switching mode management module and a tracking scanning control module; wherein:
the integrated phased array antenna adopts a receiving and transmitting shared system and is used for switching the working mode of the load antenna according to a task switching short instruction issued by the comprehensive processing unit when a task reconstruction data packet is required to be uploaded;
The channel switching mode management module is used for carrying out multi-step preprocessing on the signals with the coverage dynamic of the variation range being larger than a set threshold value and the signal sensitivity being lower than the lower limit of the noise substrate to obtain communication signals suitable for sensing the power range of the detection signals;
And the tracking scanning control module is used for converting channels and converting the working mode of the load antenna from a sector scanning mode to a resident mode.
In some preferred embodiments, the integrated phased array antenna includes a plurality of polarization switching modules and their corresponding transceiver antenna elements; each polarization switching module is connected with a corresponding receiving and transmitting antenna unit through a blind-plug connector and is used for realizing left-handed or right-handed circular polarization transmission and receiving of signals, and meanwhile, a switch gating corresponding filter is used for realizing narrow-band or broadband signal transmission and narrow-band or broadband signal receiving, and resident frequency points are screened and set according to the range and characteristics of a sensing load frequency band and the requirements of uploading data rate.
In some preferred embodiments, in the integrated signal processing module, a soft processing manner is adopted to demodulate and parse the preprocessed perceptual communication integrated signal, including: integrated preprocessing, filtering, synchronizing, demodulating and decoding;
Wherein:
The integrated preprocessing adopts a multi-step preprocessing mode of grading, smoothing and tracking feedback processing, and is used for further eliminating processing burrs caused by heterogeneous signal differences, and improving the tracking accuracy and stability and the signal-to-noise ratio and reliability of signals.
And the filtering is used for filtering useless signals, assisting in realizing real-time estimation and prediction of the channel state and dynamically adjusting tracking parameters according to the change condition of heterogeneous channels.
And the synchronization is used for eliminating heterogeneous channel processing difference and improving tracking accuracy and stability.
Demodulation and decoding, which is used to restore the original data and perform necessary decoding processing according to 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 comprises: a data storage sub-module and a data verification sub-module; wherein:
The data storage sub-module is used for judging whether the reconstruction data bit stream of the one-time uploading task is completed or not; if not, further judging whether to enter shutdown countdown or outbound countdown; if yes, storing the reconstruction data bit of the uploading task into a corresponding storage area;
the data verification sub-module is used for verifying and checking the stored task reconstruction data bits; if the check is correct, checking whether the bit number accords with the data packet frame number, and if the check shows that the tail redundant data exists, cutting bits according to the check result; if the checking is correct or the tail redundant data processing is completed, reserving a storage result; if frame loss or check errors occur, the ground station repeatedly injects task reconstruction data packets until the number of frames of the data packets in the storage area is correct and the check is correct.
In some preferred embodiments, as shown in fig. 3, the digital single machine reconstruction control unit firstly performs packet analysis on the task reconstruction data bit stream after integrated processing, and then performs authentication verification judgment on the obtained load task data, so as to extract task reconstruction parameters; and distributing the successfully verified load task data and task reconstruction parameters to a load single machine configuration unit.
The on-orbit real-time task response system based on the perception communication integration provided by the embodiment of the invention has the following working flow:
The measurement and control channel uploads a switching instruction to the comprehensive processing unit;
the load management unit performs antenna mode switching, frequency point residence, sector direction locking and channel switching according to the switching instruction issued by the comprehensive processing unit;
The sensing communication integrated processing unit performs preprocessing, filtering, tracking and synchronization on signals transmitted by the switched channels until the signals are stably locked, and meanwhile, disturbance is removed, demodulation, weak signal processing and information error correction are performed;
the digital single machine reconstruction control unit performs reconstruction data reconstruction on the task reconstruction data bit stream obtained after the integrated processing, wherein the reconstruction data reconstruction comprises tail processing, caching processing, outbound processing, shutdown preprocessing and the like, so as to obtain load task data and task reconstruction parameters;
the load single machine configuration unit configures according to the load task data and the task reconstruction parameters, constructs a new load task and completes load task response.
The embodiment of the invention provides an on-orbit real-time task response method based on sensing communication integration.
Specifically, as shown in fig. 4, the on-orbit real-time task response method based on the integration of the perception communication provided in this embodiment may include the following operations:
S1, acquiring a load task switching instruction through a satellite-to-ground measurement and control link, and judging the load task switching instruction;
s2, channel switching is carried out according to the judged load task switching instruction;
S3, acquiring a perception communication integrated signal carrying a task reconstruction data packet through channel tracking after switching, carrying out integrated demodulation and analysis processing on the signal to obtain the task reconstruction data packet and storing a task reconstruction data bit stream;
s4, carrying out packet analysis and data verification on the task reconstruction data bit stream obtained after the integrated processing to obtain load task data successfully authenticated and verified, and obtaining task reconstruction parameters;
And S5, carrying out load task parameter configuration based on the obtained load task data and task reconstruction parameters, constructing a new load task, and completing load task switching.
It should be noted that, the steps in the method provided by the present invention may be implemented by using corresponding modules, devices, units, etc. in the system, and those skilled in the art may refer to a technical scheme of the system to implement a step flow of the method, that is, an embodiment in the system may be understood as a preferred example of implementing the method, which is not described herein.
The technical scheme provided by the embodiment of the invention is further described in detail below with reference to a specific application example.
In this specific application example, the implementation is performed in a scenario without high-speed communication uplink, satellite-to-ground feeder link (which can support Gbps uplink transmission rate) or satellite-to-ground user link (which can support 100Mbps uplink transmission rate) and inconvenience to additionally carry communication load.
The ground measurement and control station sends a control instruction through the satellite-ground measurement and control link, and switches the load communication channel to be frequency resident. The frequency control module can select a resident frequency point of 1.6GHz, and the resident frequency point reaches 400MHz after multistage filtering, low-noise amplification and down-conversion.
The load task switching instruction is transmitted through the satellite-to-ground measurement and control link, the required data quantity is 32Byte, the data contains check bits, the data is subjected to replacement encryption, and then the data is packaged through a frame header, so that the data packet meets the requirements of a measurement and control communication protocol.
Further, a perception communication integrated processing unit is adopted, and integrated channel switching is completed through tracking scanning control. And through integrated preprocessing, filtering and synchronization of the integrated signal processing module, the disturbance is removed, and the demodulation and weak signal processing are performed until the signals are stably locked, so that the signal analysis and the data extraction of the integrated channel transmission are completed. Wherein:
And the integrated signal processing module is used for completing correct demodulation and analysis of the perception communication integrated signal of the load-bearing task reconstruction data packet. The method mainly comprises the following steps: integrated preprocessing, filtering, synchronizing, demodulating, decoding, etc.
The integrated data reconstruction storage module judges whether one-time uploading is completed or not, and whether the uploading is not completed or not enters shutdown countdown or exit countdown for 2 minutes or not; if so, the data is stored in the corresponding storage area. And after the reconstructed data packet is stored in the corresponding storage area, checking and checking the reconstructed data. If the verification is correct, checking whether the bit number accords with the data packet frame number, and if the redundant data at the tail part appears, cutting bits according to the verification result; after checking the correctness or finishing the tail processing, the storage result is reserved. If frame loss occurs or the verification is wrong, the ground station repeatedly injects the reconstruction data packet until the frame number of the reconstruction data packet in the storage area is correct and the verification is correct.
The integrated channel processing module is used for carrying out multi-step preprocessing such as grading, smoothing, feedback and the like on signals with large dynamic range coverage (the dynamic range coverage is larger than a set threshold value) and signal sensitivity lower than the lower limit of a noise substrate (the signal sensitivity is lower than the lower limit of the noise substrate), so as to ensure that communication signals in the power range of sensing detection signals (such as radar signals) are suitable for correct demodulation and decoding; and the sector resident frequency control sub-module is used for switching the load communication channel into a frequency resident mode.
And a digital single machine reconstruction control unit is adopted to verify and analyze bit data transmitted by the sensing communication integrated processing unit and to distribute a reconstruction instruction with reliable verification to a load single machine configuration unit, so that the load single machine configuration unit is used for completing load task reconstruction.
And a load single machine configuration unit is adopted, a perception communication integrated processing unit is started according to a task switching instruction of the comprehensive processing unit, a hidden communication high-speed channel is switched, reconstruction data is received and uploaded, and the reconstruction data is sent to a digital single machine reconstruction control unit.
And receiving a task switching short instruction which is uploaded by the measurement and control channel by adopting the comprehensive processing unit.
And the comprehensive processing unit is used for transmitting the load task switching instruction through the satellite-to-ground measurement and control link and directly transmitting the load task switching instruction to the comprehensive electronic module. After the judgment of the comprehensive electronic module, an instruction is issued to the load management unit to switch the antenna mode, lock the sector direction and reside the frequency point, thus completing the channel conversion.
By implementing the specific application example, the communication signal is transmitted in an uplink channel with the characteristic of a wideband pulse signal, a hidden communication channel is established, and loading of load task reconstruction data (according to the task amount and the load storage data size) is completed within 2.4 s-10 min at the uplink transmission rate of Mbps. Compared to the traditional transit measurement and control link (2 kbps), the one-time injection requires more than 30 orbits, even for a near earth orbit satellite revisited at 1.5h, at least 2 days are required. The embodiment of the invention can be applied to various scenes such as on-orbit task reconstruction, hidden communication and the like, and can effectively improve the capacity of quick response and flexible task switching of the load.
An embodiment of the present invention provides a computer terminal including a memory, a processor, and a computer program stored on the memory and executable on the processor, when executing the computer program, being operable to operate the system of any of the above embodiments of the present invention, or to perform the method of any of the above embodiments of the present invention.
Optionally, a memory for storing a program; memory, which may include volatile memory (english) such as random-access memory (RAM), such as static random-access memory (SRAM), double data rate synchronous dynamic random-access memory (Double Data Rate Synchronous Dynamic Random Access Memory, DDR SDRAM), and the like; the memory may also include a non-volatile memory (English) such as a flash memory (English). The memory is used to store computer programs (e.g., application programs, functional modules, etc. that implement the methods described above), computer instructions, etc., which may be stored in one or more memories in a partitioned manner. And the above-described computer programs, computer instructions, data, etc. may be invoked by a processor.
The computer programs, computer instructions, etc. described above may be stored in one or more memories in partitions. And the above-described computer programs, computer instructions, data, etc. may be invoked by a processor.
And a processor for executing the computer program stored in the memory to implement the steps in the method or the modules of the system according to the above embodiments. Reference may be made in particular to the description of the previous method and system embodiments.
The processor and the memory may be separate structures or may be integrated structures that are integrated together. When the processor and the memory are separate structures, the memory and the processor may be connected by a bus coupling.
An embodiment of the invention provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, is operable to run the system of any of the above embodiments of the invention or to perform the method of any of the above embodiments of the invention.
The on-orbit real-time task response system and method based on the integrated perception communication provided by the embodiment of the invention can play a remarkable role in the situations that a high-speed communication uplink, a satellite-to-ground feed link (capable of supporting Gbps uplink transmission rate) or a satellite-to-ground user link (capable of supporting 100Mbps uplink transmission rate) is not available and communication load is inconvenient to carry additionally. Meanwhile, the system also directly completes the switching or reconstruction task of the load task in the effective load, and is more efficient and safer. The method is applicable to loads of meteorological satellites, remote sensing satellites, detection satellites and the like. The system can adapt to the working modes of various frequency points and various use requirements such as electronic reconnaissance, electronic interference, active detection, two-way communication and the like, and is a necessary and basic innovation technology in the current lead-through and remote integrated constellation construction at the forefront of aerospace development.
The on-orbit real-time task response system and method based on the sensing communication integration provided by the embodiment of the invention realize co-channel transmission in an uplink through integrated phased array antenna feed and polarization switching, radio frequency receiving and transmitting phase shifting and beam control, and establish a hidden communication channel in a sensing channel (such as radar signals); the load subsystem autonomously receives the reconstruction data and completes judgment, and reconstruction configuration is directly carried out on each single machine in the load subsystem; adopting a receiving and transmitting shared system, connecting each polarization switching module with a corresponding receiving and transmitting antenna unit through a blind-plug connector to realize left-hand or right-hand circular polarization transmission and reception of signals, and simultaneously realizing narrowband or wideband signal transmission and narrowband or wideband signal reception through a switch gating corresponding filter; and switching channels by the frequency control module, and converting the working mode of the load antenna from a sector mode to a resident mode.
The foregoing embodiments of the present invention are not all well known in the art.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without affecting the spirit of the invention.
Claims (10)
1. An on-orbit real-time task response system based on sensing communication integration is characterized by comprising:
the comprehensive processing unit is used for acquiring a load task switching short instruction through a satellite-to-ground measurement and control link, judging the load task switching short instruction and then issuing the load task switching short instruction to the load management unit;
the load management unit is used for switching channels according to the load task switching short instruction of the comprehensive processing unit;
The sensing communication integrated processing unit is used for acquiring sensing communication integrated signals carrying task reconstruction data packets through channel tracking switched by the load management unit, demodulating and analyzing the signals to obtain the task reconstruction data packets and storing task reconstruction data bit streams;
The digital single machine reconstruction control unit is used for carrying out packet analysis and data verification on the task reconstruction data bit stream obtained after the processing of the perception communication integrated processing unit, obtaining load task data successfully authenticated and verified, extracting task reconstruction parameters and distributing the task reconstruction data to the load single machine configuration unit;
And the load single machine configuration unit is used for carrying out load task parameter configuration according to the obtained load task data and task reconstruction parameters and constructing a new load task.
2. The on-orbit real-time task response system based on the integration of the perception communication according to claim 1, wherein the comprehensive processing unit analyzes the short instruction of the load task switching, extracts the switching enabling bit and judges whether the enabling is effective; if the enabling is effective, a task switching short instruction is sent to the load management module; if not, the enable is discarded.
3. The on-orbit real-time task response system based on integration of sensing communication according to claim 1, wherein the sensing communication integrated processing unit comprises: the integrated channel processing module, the integrated signal processing module and the integrated data reconstruction storage module; wherein:
the integrated channel processing module is used for preprocessing a sensing communication integrated signal of the load-bearing task reconstruction data packet and switching a load antenna working mode;
The integrated signal processing module is used for demodulating and analyzing the preprocessed perception communication integrated signal to obtain a task reconstruction data packet;
The integrated data reconstruction storage module is used for storing and checking the task reconstruction data bit stream.
4. An on-orbit real-time task response system based on integration of cognitive communications according to claim 3, wherein the integrated channel processing module comprises: the system comprises an integrated phased array antenna, a channel switching mode management module and a tracking scanning control module; wherein:
the integrated phased array antenna adopts a receiving and transmitting shared system and is used for switching the working mode of the load antenna according to a task switching short instruction issued by the comprehensive processing unit when a task reconstruction data packet is required to be uploaded;
The channel switching mode management module is used for carrying out multi-step preprocessing on signals with the coverage dynamic of a change range being larger than a set threshold value and the signal sensitivity being lower than the lower limit of the noise substrate to obtain communication signals in a power range suitable for sensing detection signals;
the tracking scanning control module is used for converting channels and converting the working mode of the load antenna from a sector scanning mode to a resident mode.
5. The on-orbit real-time task response system based on integrated cognitive communication according to claim 4, wherein the integrated phased array antenna comprises a plurality of polarization switching modules and corresponding transceiver antenna units; each polarization switching module is connected with a corresponding receiving and transmitting antenna unit through a blind-plug connector and is used for realizing left-handed or right-handed circular polarization transmission and receiving of signals, and meanwhile, a switch gating corresponding filter is used for realizing narrow-band or broadband signal transmission and narrow-band or broadband signal receiving, and resident frequency points are screened and set according to the range and characteristics of a sensing load frequency band and the requirements of uploading data rate.
6. The on-orbit real-time task response system based on the integrated sensing communication according to claim 3, wherein the integrated signal processing module demodulates and parses the preprocessed integrated sensing communication signal by adopting a soft processing mode, and the system comprises: integrated preprocessing, filtering, synchronizing, demodulating and decoding;
Wherein:
the integrated pretreatment adopts a multi-step pretreatment mode of grading, smoothing and tracking feedback treatment and is used for eliminating treatment burrs caused by heterogeneous signal differences;
The filtering is used for filtering useless signals and assisting in realizing real-time estimation and prediction of the channel state, and tracking parameters are dynamically adjusted according to the change condition of heterogeneous channels;
The synchronization is used for eliminating heterogeneous channel processing difference, eliminating errors caused by time deviation or rate mismatch, and identifying and extracting effective bit positions;
the demodulation and decoding are used for restoring the original data and performing decoding processing according to the characteristics of the integrated signal and the channel.
7. An on-orbit real-time task response system based on integration of cognitive communications according to claim 3, wherein the integrated data reconstruction storage module comprises: a data storage sub-module and a data verification sub-module; wherein:
The data storage sub-module is used for judging whether the reconstruction data bit stream of the one-time uploading task is completed or not; if not, further judging whether to enter shutdown countdown or outbound countdown; if yes, storing the reconstruction data bit of the uploading task into a corresponding storage area;
The data verification sub-module is used for verifying and checking the stored task reconstruction data bits; if the check is correct, checking whether the bit number accords with the data packet frame number, and if the check shows that the tail redundant data exists, cutting bits according to the check result; if the checking is correct or the tail redundant data processing is completed, reserving a storage result; if frame loss or check errors occur, the ground station repeatedly injects task reconstruction data packets until the number of frames of the data packets in the storage area is correct and the check is correct.
8. An on-orbit real-time task response method based on sensing communication integration is characterized by comprising the following steps:
Acquiring a load task switching instruction through a satellite-ground measurement and control link, and judging the load task switching instruction;
channel switching is carried out according to the judged load task switching instruction;
Acquiring a perception communication integrated signal carrying a task reconstruction data packet through channel tracking after switching, carrying out integrated demodulation and analysis processing on the signal to obtain the task reconstruction data packet, and storing a task reconstruction data bit stream;
Carrying out packet analysis and data verification on the task reconstruction data bit stream obtained after the integrated processing to obtain load task data successfully authenticated and verified, and obtaining task reconstruction parameters;
And carrying out load task parameter configuration based on the obtained load task data and task reconstruction parameters, and constructing a new load task.
9. A computer terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor is operable to run the system of any one of claims 1-7 or to perform the method of claim 8 when the computer program is executed.
10. A computer readable storage medium having stored thereon a computer program, which when executed by a processor is operable to run the system of any of claims 1-7 or to perform the method of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410645609.8A CN118249896B (en) | 2024-05-23 | 2024-05-23 | On-orbit real-time task response system and method based on sensing communication integration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410645609.8A CN118249896B (en) | 2024-05-23 | 2024-05-23 | On-orbit real-time task response system and method based on sensing communication integration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118249896A true CN118249896A (en) | 2024-06-25 |
| CN118249896B CN118249896B (en) | 2024-08-23 |
Family
ID=91558881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410645609.8A Active CN118249896B (en) | 2024-05-23 | 2024-05-23 | On-orbit real-time task response system and method based on sensing communication integration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118249896B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109117147A (en) * | 2018-06-28 | 2019-01-01 | 上海卫星工程研究所 | Passive location satellite load software reconfiguration Fast implementation based on big data quantity |
| US20200177272A1 (en) * | 2018-11-29 | 2020-06-04 | Astranis Space Technologies Corp. | Adjustable payload system for small geostationary (geo) communication satellites |
| CN111953403A (en) * | 2020-08-12 | 2020-11-17 | 中国科学院微小卫星创新研究院 | On-orbit reconstruction system and method for navigation satellite load |
| CN112491457A (en) * | 2020-10-16 | 2021-03-12 | 浙江吉利控股集团有限公司 | Satellite on-orbit reconstruction method, device, system, equipment and storage medium |
| CN114444314A (en) * | 2022-01-29 | 2022-05-06 | 中国人民解放军32032部队 | Optimization method of satellite load on-orbit reconstruction implementation process |
| CN117149298A (en) * | 2023-08-09 | 2023-12-01 | 中国电子科技集团公司第二十九研究所 | Function reconstruction method, software architecture and hardware platform architecture of space load system |
-
2024
- 2024-05-23 CN CN202410645609.8A patent/CN118249896B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109117147A (en) * | 2018-06-28 | 2019-01-01 | 上海卫星工程研究所 | Passive location satellite load software reconfiguration Fast implementation based on big data quantity |
| US20200177272A1 (en) * | 2018-11-29 | 2020-06-04 | Astranis Space Technologies Corp. | Adjustable payload system for small geostationary (geo) communication satellites |
| CN111953403A (en) * | 2020-08-12 | 2020-11-17 | 中国科学院微小卫星创新研究院 | On-orbit reconstruction system and method for navigation satellite load |
| CN112491457A (en) * | 2020-10-16 | 2021-03-12 | 浙江吉利控股集团有限公司 | Satellite on-orbit reconstruction method, device, system, equipment and storage medium |
| CN114444314A (en) * | 2022-01-29 | 2022-05-06 | 中国人民解放军32032部队 | Optimization method of satellite load on-orbit reconstruction implementation process |
| CN117149298A (en) * | 2023-08-09 | 2023-12-01 | 中国电子科技集团公司第二十九研究所 | Function reconstruction method, software architecture and hardware platform architecture of space load system |
Non-Patent Citations (1)
| Title |
|---|
| 阎啸;杨宗武;王茜;张天虹;: "一体化综合信息处理载荷系统中柔性可重构技术的研究", 实验科学与技术, no. 06, 28 December 2016 (2016-12-28) * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118249896B (en) | 2024-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109117147B (en) | Passive positioning satellite load software reconstruction rapid implementation method based on large data volume | |
| CN106888047B (en) | Low orbit satellite data transmission method | |
| CN109379167A (en) | Near-earth remote sensing satellite self-adapting changeable coding modulation data Transmission system and method | |
| CN113258956B (en) | Satellite communication signal processing method, device, electronic equipment and medium | |
| CN106571864A (en) | General multi-mode information processor for aircrafts based on software radio | |
| CN213043681U (en) | Measurement, operation and control system of polar orbit satellite | |
| Downey et al. | Adaptive Coding and Modulation Experiment Using NASA's Space Communication and Navigation Testbed | |
| CN113783602B (en) | Satellite communication data quality improving device | |
| CN111934747A (en) | System and method for realizing unified measurement and control of low-orbit formation satellites and transponder | |
| CN115347938B (en) | Satellite communication system based on RFSoC software radio architecture | |
| CN118249896B (en) | On-orbit real-time task response system and method based on sensing communication integration | |
| CN110299938B (en) | Ground measurement and control resource scheduling method suitable for low-earth orbit satellite | |
| CN118074778A (en) | Ground station measurement and control navigation terminal | |
| Vazquez-Alvarez et al. | Design of a polarization diversity system for ground stations of CubeSat space systems | |
| CN103731195A (en) | Micro-type satellite multi-code-rate multi-channel multi-system communication method | |
| CN112054836B (en) | Remote control information processing system and method for remote sensing satellite based on bus channel backup | |
| US11463162B2 (en) | High availability scalable multi-source virtualized spectrum signal processing system | |
| US20120027055A1 (en) | Satellite On-Board RFI Detection | |
| Bridges et al. | A baptism of fire: The STRaND-1 nanosatellite | |
| Edwards et al. | Relay support for the Mars Science Laboratory and the coming decade of Mars relay network evolution | |
| CN114362812B (en) | Offline frame planning burst synchronization method and system | |
| US20230327751A1 (en) | Unified platform for nanosatellite systems | |
| Layland et al. | Interagency array study report | |
| CN214507072U (en) | Communication and navigation integrated satellite and satellite system | |
| US20240259087A1 (en) | SATELLITE COMMUNICATION WITH MODULARIZED MOBILE EARTH STATIONS (MESs) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |