CN107911702A - Real-time lightning image processing system and method on a kind of more FPGA collaborations stars - Google Patents

Real-time lightning image processing system and method on a kind of more FPGA collaborations stars Download PDF

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CN107911702A
CN107911702A CN201711195001.6A CN201711195001A CN107911702A CN 107911702 A CN107911702 A CN 107911702A CN 201711195001 A CN201711195001 A CN 201711195001A CN 107911702 A CN107911702 A CN 107911702A
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lightning
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time
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CN107911702B (en
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王庆元
武文波
鲍书龙
李晓莉
安源
李强
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Beijing Institute of Space Research Mechanical and Electricity
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/436—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using parallelised computational arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40208—Bus networks characterized by the use of a particular bus standard

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

The present invention proposes real-time lightning image processing system and method on a kind of more FPGA collaborations stars, including real-time lightning detection processing module, background image data processing module, lightning signal and background image coding module, 500 frames/second can be handled in real time, and data rate is up to 10.9Gbps raw image datas and completes lightning detection processing.Data localized technology is cooperateed with by 8 high-performance SRAM type FPGA and 4 anti-fuse FPGAs, it effectively can not only detect and identify lightning signal, realize at the same time and flexibly extract original background data block, complete lightning signal data and block of background data assembly coding function.Original picture block is extracted by anti-fuse FPGA and descends into ground, the identification and extraction of transient state target are completed using SRAM type FPGA.In-orbit target identification efficiency is improved, can meet multipurpose application, Radiation hardness is strong, is adapted to high rail satellite application.

Description

Real-time lightning image processing system and method on a kind of more FPGA collaborations stars
Technical field
The invention belongs to scan picture field on star, it is proposed that on a kind of more FPGA collaborations stars in real time at lightning image System and method is managed, the real-time processing available for in-orbit camera image data carries out the detection of transient state lightning signal and identification.
Background technology
Lightning detection plays an important role in terms of meteorological observation, by lightning activity orientation, intensity and motion frequency Monitoring can be deepened to strong convective weather in land and ocean distribution, the understanding of structure and change, and timely and accurately forecast is sudden and violent The diastrous weathers such as rain, hurricane, can significantly lower the life and property loss of the mankind in the range of large scale.Lightning is observed Original image is obtained by 500 frames/second high speed imaging instrument, data volume is big, and mass data is limited be subject to satellite-ground link bandwidth, can not It is transferred to grounded receiving station；At the same time limited view data be transferred to ground reprocessing cannot to this kind of transient state target of lightning and When detection, identification and processing, it is necessary to by in-orbit processing detection and identifying lightning signal.For this kind of Special Graphs of lightning detection As processing, conventional star epigraph processing method can not solve problems, and in addition satellite borne equipment has strictly for volume, power consumption Constraint, ground rely on mainframe computer processing method do not apply to yet.
The content of the invention
Present invention solves the technical problem that it is：Provide on a kind of more FPGA collaboration star lightning image processing system in real time and Method, solves to mass image data high speed processing, detection is with identifying transient state lightning signal in real time, and can flexibly carry Original background data block is taken, the complete detection information of lightning signal and block of background data assembly coding are descended into grounded receiving station. There is good application value on lightning activity situation and forecasting and warning strong convective weather is grasped.
The present invention technical solution be：Lightning image processing system, including reality in real time on a kind of more FPGA collaborations stars When lightning detection processing module, background image data processing module, lightning signal and background image coding module；
Real-time lightning detection processing module receives the whole frame raw image data of background image data processing module forwarding, follows Ring caches adjacent more frame data, and according to lightning detection algorithm, multiple FPGA collaboration parallel processing present frames are adjacent with caching More frame data, detection in real time with identify the lightning signal of present frame, complete lightning information encode and be output to lightning signal and Background image coding module；
Background image data processing module receives the focal plane raw image data that high-speed serial bus is sent, and is transmitted to Real-time lightning detection processing module, while the raw image data for specifying region is extracted from present frame according to ground telecommand Block；
Lightning signal receives the lightning coded data of real-time lightning detection processing module output with background image coding module, At the same time receive background image data processing module output specified region raw image data block, reconfigure coding after according to Bus standard is sent to exterior data transmission equipment.
Exterior data transmission equipment is sent to according to SpaceWire bus formats.
The real-time lightning detection processing module includes more FPGA parallel processing elements, high-speed circulating memory buffer list Member, lightning signal coding unit, DCCU data communication control unit；
More FPGA parallel processing elements receive the raw image data of DCCU data communication control unit forwarding, each FPGA processing The lightning view data of one subregion；The partition data is stored in high-speed circulating memory buffer unit at the same time；
High-speed circulating memory buffer unit is one group of random access memory, when using F frames to carry out lightning detection, if adopting During with low speed random access memory, it is made of F low speed random access memory chip, each memory chip preserves a two field picture number According to；During according to high speed random access memory, using bit wide extended mode, table tennis is completed within the pixel time using two groups of memories Caching；
Lightning signal coding unit completes the information coding that more FPGA parallel processing elements detect effective lightning signal；
DCCU data communication control unit receives background image data processing as the interface with background image data processing module The whole frame raw image data of module forwards, each of more FPGA parallel processing elements is distributed to by the frame raw image data FPGA, the lightning coded data for receiving the output of lightning signal coding unit are transmitted to lightning signal and background image coding module.
More FPGA parallel processing elements use N piece SRAM type FPGA, turn when receiving DCCU data communication control unit During the raw image data of hair, each SRAM type FPGA handles the lightning view data of a subregion.
One picture frame is divided into N number of subregion by the quantity according to FPGA, and each SRAM type FPGA handles a subregion The specific processing mode of lightning view data be：Partition data is stored in the on-chip memory of FPGA first, while should Partition data is stored in the region that high-speed circulating memory buffer unit is made of N number of region, then reads high-speed circulating The same position partition data of the preceding N-1 frames of the other region storages of memory buffer unit；To each picture in the subregion of present frame First amplitude carries out amplitude limit, if pixel amplitude is more than signal limiter setting value, current pixel is replaced with signal limiter setting value Amplitude carries out background evaluation, otherwise directly carries out background evaluation value calculating using current amplitude；According to former frames and present frame The amplitude of same pixel position is weighted summation, if current pixel amplitude so judges the pixel position more than background evaluation value It is equipped with there may be lightning signal, otherwise judges that lightning signal is not present in the pixel position；One group of threshold value hierarchical table is set, according to Background evaluation value searches corresponding threshold value in threshold value table, and the amplitude of alternative lightning pixel and background evaluation value are done the letter after subtracting Number value is compared with threshold value, if greater than threshold value, then it is assumed that and the signal value is exactly the lightning signal amplitude of current pixel position, Otherwise it is assumed that lightning does not occur for the pixel position, there is no lightning signal.
The high-speed circulating memory buffer unit using memory be SRAM, SDRAM or DDR when, using F frames come When carrying out lightning detection, high-speed circulating memory buffer unit is made of F independent SRAM, SDRAM or DDR chips, each SAM Stand Alone Memory chip preserves a frame image data.When using DDR2 or DDR3 memories, using bit wide extended mode, only Need two groups of DDR2 either every group of DDR2 or DDR3 of DDR3 a storage cell preserve F-1 frames same pixel position number According to using ping-pong buffer mode, when handling each pel data of a two field picture, while by the same pixel of F-2 frames of reading The same pixel position of position data and present frame is used as at next frame lightning detection in storing to another group of DDR2 or DDR3 Reason uses.The operation of this ping-pong buffer requires to complete within the pixel time.
The lightning signal coding unit detects that effective lightning signal dodges for more FPGA parallel processing elements Power information encodes, and content includes Lightning position, lightning intensity, background evaluation value, threshold value, position check code and lightning time, dodges At the time of the electric time is present frame.
The background image data processing module and lightning signal use anti-fuse FPGA with background image coding module Realize.
According to the method that lightning image processing system carries out image procossing in real time on above-mentioned more FPGA collaborations stars, its feature exists It is as follows in step：
1) background image data processing module receives focal plane raw image data, and is transmitted to real-time lightning detection processing mould Block, while extracted from present frame and specify the raw image data block in region to export to lightning signal and background image coding mould Block；
2) DCCU data communication control unit of lightning detection processing module exports after receiving the view data subregion of forwarding in real time To more FPGA parallel processing elements, high-speed circulating memory buffer unit；The storage of high-speed circulating memory buffer unit is adjacent More frame data are supplied to more FPGA parallel processing elements to use, and more FPGA parallel processing elements complete detection and identification lightning signal Calculate to handle and export effective lightning signal and give lightning signal coding unit；Lightning signal coding unit is completed lightning information and is compiled Exported after code to DCCU data communication control unit；DCCU data communication control unit by lightning information coded data export to lightning signal with Background image coding module；
3) lightning signal and background image coding module by original picture block and lightning information coded data according to SpaceWire bus formats are combined into data packet and export to exterior data transmission equipment.
The present invention compared with prior art the advantages of be：
(1) real-time lightning image processing system on more FPGA of the invention collaboration star, passes through multi-disc high-performance SRAM type FPGA and anti-fuse FPGA collaboration data localized can handle 500 frames/second in real time, and it is original that data rate is up to 10.9Gbps View data completes lightning detection processing.System computing capacity and storage resource can support high-speed, big data quantity star on Scan picture, is adapted to the detection and identification of transient state target；
(2) real-time lightning image processing system on more FPGA of the invention collaboration star, by using multi-disc high-performance SRAM The real-time lightning detection processing of type FPGA, improves process performance and flexibility, is conducive to the renolation of algorithm.By using anti- Irradiation ability strong anti-fuse FPGA receives raw image data, and extracts specific context video data block, completes lightning The coding and output of information and background data, improve the reliability that system works when high rail satellite spatial radiation environment is severe；
(3) lightning image processing system establishes high rail and stationary orbit lightning in real time on more FPGA of the invention collaboration star Detect the good system architecture of versatility of processing, Interface Expanding is strong, and memory resource selection space is big, the detection to user with Identify that new transient state target requirement can timely respond to.
Brief description of the drawings
Real-time lightning image processing system schematic diagram on the more FPGA collaborations stars of Fig. 1；
Fig. 2 lightning detection processing procedure schematic diagrams
Fig. 3 focal plane data-signal timing diagrams；
Fig. 4 Parallel image data timing diagrams；
The read operation timing diagram of Fig. 5 high-speed memories DDR；
The write operation timing diagram of Fig. 6 high-speed memories DDR；
Fig. 7 SpaceWire bus interface figures；
Fig. 8 SpaceWire data packet formats
Embodiment
The present invention proposes lightning image processing system, including real-time lightning detection processing in real time on a kind of more FPGA collaborations stars Module, background image data processing module, lightning signal and background image coding module.Real-time lightning detection processing module is with 8 Piece SRAM type FPGA parallel processings are core, complete real-time transient state lightning target information detection and identification function.Background image number According to processing module, lightning signal and background image coding module by 4 high reliability Flouride-resistani acid phesphatase anti-fuse FPGAs control Core, completes the reception of focal plane raw image data and forwarding, the extraction of background image data block, lightning information and block of background data group Conjunction is encoded into form bag and SpaceWire buses are sent.Background image data processing module includes 16 tunnel speed 1.6Gbps at a high speed Serial received bus, receives 500 frames/second raw image data that 1400 × 1400 pixel faces battle array focal plane produces, passes through antifuse High speed parallel interface is transmitted to real-time lightning detection processing module between FPGA and SRAM type FPGA, according to lightning signal and background The instruction of image code parsing requires to extract the block of background data for specifying region and is sent to it.Real-time lightning detection processing module Be made of four parts, including DCCU data communication control unit, more FPGA parallel processing elements, high-speed circulating memory buffer unit, Lightning signal coding unit.DCCU data communication control unit receives the raw image data of background image data processing module forwarding, The lightning information data sending for being also responsible for exporting lightning signal coding unit is to lightning signal and background image coding module.It is more FPGA parallel processing elements are responsible for lightning detection calculating, and 8 SRAM type FPGA use MGT express networks into row data communication.It is more Piece SRAM type FPGA uses adjacent 7 frame image data, using being handled by pixel, utilize associated information calculation background evaluation between frame Value, using adaptive threshold hierarchical table detect with identify effective lightning signal.High-speed circulating memory buffer unit is used for Circulation stores newest adjacent 6 frame image data and current frame image data.Lightning signal coding unit to lightning signal and its Detection process parameter information is encoded, including Lightning position (20bits), lightning intensity (12bits), background evaluation value (12bits), threshold value (12bits) and position check code (8bits), common 64bits.Lightning signal and background image coding module The background block data of background image data processing module output are received, while receiving real-time lightning detection processing module output Lightning information coded data be combined into form bag data transmission equipment be sent to by SpaceWire buses.
The structure diagram of real-time lightning image processing system on star is cooperateed with for the more FPGA of the present invention as shown in Figure 1, is divided into Background image data processing module and lightning signal with corresponding to background image coding module circuit part (anti-fuse FPGA into Row timing control) and real-time lightning detection processing module corresponding to circuit part (SRAM type FPGA carry out timing control).Instead Fuse FPGA control circuit part includes high speed serialization and receives bus circuit, forwarding raw image data interface, lightning coding letter Cease receiving interface, three line receiving circuits, three line transtation mission circuits, SpaceWire bus interface totally 6 circuits.SRAM type FPGA into Row sequential control circuit part includes two groups of high-speed memories (or 7 groups of slow memories), receives forwarding raw image data Interface, lightning coding information data transmission interface.
Fig. 2 is lightning detection processing procedure schematic diagram, and specific calculation processes are as follows：
Step 1：The signal of focusing plane output is compared with signal limiter setting value, if greater than signal limiter setting value, Then current signal value is replaced to carry out background evaluation with signal limiter setting value, otherwise directly carrying out background using current signal value comments Estimate, prevent excessive transient state point source echo signal from being polluted to background evaluation.
Step 2：Calculate background evaluation value.It is weighted and is asked according to the amplitude of former frames and the same pixel position of present frame With it is on the contrary to sentence if current pixel amplitude so judges that the pixel position there may exist lightning signal more than background evaluation value Lightning signal is not present in the disconnected pixel position.
Step 3：Threshold data compares detection and identification lightning signal.One group of threshold value hierarchical table is set, according to background evaluation Value searches corresponding threshold value in threshold value table, and the amplitude of alternative lightning pixel and background evaluation value are done the signal value after subtracting and threshold Value is compared, if greater than threshold value, then it is assumed that and the signal value is exactly the lightning signal amplitude of current pixel position, otherwise it is assumed that Lightning does not occur for the pixel position, and there is no lightning signal.
High speed serialization receives bus circuit：The raw image data of 16 road 1.6Gbps of focal plane circuit output, is turned simultaneously by string Chip completion serial data is converted to 12bits parallel datas and is output to inside anti-fuse FPGA.If Fig. 3 is focal plane data-signal Timing diagram, universal serial bus further include frame useful signal and row useful signal, by going here and there simultaneously except the pel data of 12bits Conversion recovers framing useful signal, row useful signal and 12bits Parallel image datas.Fig. 4 is Parallel image data sequential relationship Figure, the consecutive frame data time sequence relation of SRAM type FPGA read-write high-speed circulating memory buffer unit storages, anti-fuse FPGA turn It is identical with Fig. 4 to SRAM type FPGA signal sequence relations to send out raw image data.
Fig. 5 and Fig. 6 is the read-write sequence graph of a relation of high-speed memory DDR2, including differential clocks CK, order Command, The signals such as address Address, data.This paper concrete schemes have used two groups of DDR2, and every group of storage cell will cache 6 frames The data of same pixel position, bit wide is 72bits after extension.Often the data of one present frame pixel of processing, which are just read, closes on 6 The data of the same pixel position of frame, then by closest to the data of 5 frame pel datas and present frame pixel be combined into 72bits numbers According in another group of DDR2 of write-in.
Three line receiving circuits, three line transtation mission circuits, lightning coded data transmission interface signal relation and spi bus standard class Seemingly, including enable signal, clock signal and a data position, difference lies in spi bus received data bit it is two-way, the present invention The three wire circuit used is one-way transmission.So it will not be repeated.
SpaceWire buses are full-duplex serial bus international standards, it aims at AEROSPACE APPLICATION design, are realized point-to-point logical The serial data bus of letter.SpaceWire bus interface figures are illustrated in figure 7, the coding of data is realized using 4 pairs of differential signals And transmission transmission rate in the system is arranged to 200Mbps.Fig. 8 is SpaceWire data packet formats.Detailed content refers to SpaceWire：SERIAL POINT-TO-POINT LINKS international standards, repeat no more herein.
The content not being described in detail in description of the invention belongs to the known technology of those skilled in the art.

Claims (9)

  1. A kind of 1. real-time lightning image processing system on more FPGA collaborations stars, it is characterised in that：Including the processing of real-time lightning detection Module, background image data processing module, lightning signal and background image coding module；
    Real-time lightning detection processing module receives the whole frame raw image data of background image data processing module forwarding, and circulation is slow Adjacent more frame data are deposited, according to lightning detection algorithm, the adjacent multiframe of multiple FPGA collaboration parallel processing present frames and caching Data, lightning signal of the detection in real time with identifying present frame, complete lightning information and encode and be output to lightning signal and background Image coding module；
    Background image data processing module receives the focal plane raw image data that high-speed serial bus is sent, and is transmitted in real time Lightning detection processing module, while the raw image data block for specifying region is extracted from present frame according to ground telecommand；
    Lightning signal receives the lightning coded data of real-time lightning detection processing module output with background image coding module, at the same time The raw image data block in the specified region of background image data processing module output is received, is reconfigured after encoding according to bus Standard is sent to exterior data transmission equipment.
  2. 2. real-time lightning image processing system on a kind of more FPGA collaborations stars according to claim 1, it is characterised in that：Press Exterior data transmission equipment is sent to according to SpaceWire bus formats.
  3. 3. real-time lightning image processing system on a kind of more FPGA collaborations stars according to claim 1, it is characterised in that：Institute The real-time lightning detection processing module stated includes more FPGA parallel processing elements, high-speed circulating memory buffer unit, lightning letter Number coding unit, DCCU data communication control unit；
    More FPGA parallel processing elements receive the raw image data of DCCU data communication control unit forwarding, and each FPGA handles one The lightning view data of subregion；The partition data is stored in high-speed circulating memory buffer unit at the same time；
    High-speed circulating memory buffer unit is one group of random access memory, when using F frames to carry out lightning detection, according to low During fast random access memory, it is made of F low speed random access memory chip, each memory chip preserves a frame image data；If During using high speed random access memory, using bit wide extended mode, ping-pong buffer is completed within the pixel time using two groups of memories Operation；
    Lightning signal coding unit completes the information coding that more FPGA parallel processing elements detect effective lightning signal；
    DCCU data communication control unit receives background image data processing module as the interface with background image data processing module The frame raw image data, is distributed to each FPGA of more FPGA parallel processing elements by the whole frame raw image data of forwarding, The lightning coded data for receiving the output of lightning signal coding unit is transmitted to lightning signal and background image coding module.
  4. 4. real-time lightning image processing system on more FPGA collaborations stars according to claim 3, it is characterised in that：Described More FPGA parallel processing elements use N piece SRAM type FPGA, when the original image number for receiving DCCU data communication control unit forwarding According to when, each SRAM type FPGA handles the lightning view data of a subregion.
  5. 5. real-time lightning image processing system on more FPGA collaborations stars according to claim 3, it is characterised in that：Described One picture frame is divided into N number of subregion according to the quantity of FPGA, each SRAM type FPGA handles the lightning view data of a subregion Specific processing mode be：Partition data is stored in the on-chip memory of FPGA first, while the partition data is stored in A region of high-speed circulating memory buffer unit is made of N number of region, then reads high-speed circulating memory buffer unit The same position partition data of the preceding N-1 frames of other region storages；Amplitude limit is carried out to each pixel amplitude in the subregion of present frame, If pixel amplitude is more than signal limiter setting value, replaces current pixel amplitude to carry out background with signal limiter setting value and comment Estimate, otherwise directly carry out background evaluation value calculating using current amplitude；According to the same pixel position of former frames and present frame Amplitude is weighted summation, if current pixel amplitude so judges that the pixel position there may exist sudden strain of a muscle more than background evaluation value Electric signal, on the contrary judge that lightning signal is not present in the pixel position；One group of threshold value hierarchical table is set, according to background evaluation value in threshold Corresponding threshold value is searched in value table, the amplitude of alternative lightning pixel and background evaluation value are done the signal value after subtracting carries out with threshold value Compare, if greater than threshold value, then it is assumed that the signal value is exactly the lightning signal amplitude of current pixel position, otherwise it is assumed that the pixel Lightning does not occur for position, and there is no lightning signal.
  6. 6. real-time lightning image processing system on more FPGA collaborations stars according to claim 3, it is characterised in that：Described High-speed circulating memory buffer unit using memory be SRAM, SDRAM or DDR when, carry out lightning detection using F frames When, high-speed circulating memory buffer unit is made of F independent SRAM, SDRAM or DDR chips, each SAM Stand Alone Memory core Piece preserves a frame image data.When using DDR2 or DDR3 memories, using bit wide extended mode, it is only necessary to two groups of DDR2 Either a storage cell of every group of DDR2 or DDR3 of DDR3 preserves the same pixel position data of F-1 frames, slow using table tennis Mode is deposited, in each pel data of one two field picture of processing, while by the same pixel position data of the F-2 frames of reading and currently The same pixel position of frame uses in storing to another group of DDR2 or DDR3 as the processing of next frame lightning detection.This table tennis Caching requirement is completed within the pixel time.
  7. 7. real-time lightning image processing system on more FPGA collaborations stars according to claim 3, it is characterised in that：Described Lightning signal coding unit detects that effective lightning signal carries out lightning information coding, content for more FPGA parallel processing elements Including Lightning position, lightning intensity, background evaluation value, threshold value, position check code and lightning time, the lightning time is present frame Moment.
  8. 8. real-time lightning image processing system on more FPGA collaborations stars according to claim 1, it is characterised in that：Described Background image data processing module and lightning signal are realized with background image coding module using anti-fuse FPGA.
  9. 9. according to lightning image processing system carries out image procossing in real time on any more FPGA collaborations stars of claim 1-8 Method, it is characterised in that step is as follows：
    1) background image data processing module receives focal plane raw image data, and is transmitted to real-time lightning detection processing module, Being extracted at the same time from present frame specifies the raw image data block in region to export to lightning signal and background image coding module；
    2) DCCU data communication control unit of lightning detection processing module is exported to more after receiving the view data subregion of forwarding in real time FPGA parallel processing elements, high-speed circulating memory buffer unit；High-speed circulating memory buffer unit stores adjacent multiframe Data are supplied to more FPGA parallel processing elements to use, and more FPGA parallel processing elements are completed detection and calculated with identification lightning signal Handle and export effective lightning signal and give lightning signal coding unit；After lightning signal coding unit completes lightning information coding Export to DCCU data communication control unit；DCCU data communication control unit exports lightning information coded data to lightning signal and background Image coding module；
    3) lightning signal and background image coding module are total according to SpaceWire by original picture block and lightning information coded data Line format combination is exported to exterior data transmission equipment into data packet.
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