CN105611294A - Spaceborne remote-sensing image compression channel multiplexing system and method - Google Patents
Spaceborne remote-sensing image compression channel multiplexing system and method Download PDFInfo
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- CN105611294A CN105611294A CN201510797188.1A CN201510797188A CN105611294A CN 105611294 A CN105611294 A CN 105611294A CN 201510797188 A CN201510797188 A CN 201510797188A CN 105611294 A CN105611294 A CN 105611294A
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Abstract
The invention provides a spaceborne remote-sensing image compression channel multiplexing system and method. The system comprises a signal gating module, a compression module, a formatting module and a control module, wherein the signal gating module carries out gating on satellite image data or other load data, and sends the data to the compression module; the compression module compresses the satellite load data, and sends a compressed data packet to the formatting module; the formatting module formats data of the compressed data packet generated by the compression module; and the control module emit control signals to the other modules to realize information flow control. According to the invention, the load data which does not need compression in the compression module is multiplexed, interface connection between a load device and information processing equipment is reduced, the channel multiplexing efficiency of satellite data processing is improved, and the complexity of a data processing system is reduced.
Description
Technical field
The present invention relates to the multiplexing field of electronic information data processing channel, particularly, relate to a kind of space remote sensing figurePicture pressure channel multiplex system and method.
Background technology
On satellite, load data class is more, if carry out separately respectively data processing, has increased data handling systemComplexity. To Optical remote satellite, generally need to carry out Image Data Compression processing to remote sensing images, to reduce data volume.Other load datas of satellite can not carry out data compression, generally need to carry out independently Data Stream Processing.
Therefore, if can, by multiple payload data stream and remote sensing images according to unified information flow processing, can saveEconomize the resource of data processing, reduce multi-load data channel and process and the complexity of transmitting. The present invention is applicable to multi-load letterBreath treatment system, to reduce the channel multiplexing problem of multi-load Data Stream Processing.
Summary of the invention
For defect of the prior art, the object of this invention is to provide the channel multiplexing of a kind of space remote sensing compression of imagesSystem and method.
According to space remote sensing compression of images channel multiplexing system provided by the invention, comprising: signal gating module, compressionModule, formatting module, control module, wherein
-described signal gating module, for completing according to the gating signal of control module after the gating of load data, willData are delivered to compression module; Load data comprises satellite image data;
-described compression module, compresses the image of satellite load data for the compression ratio signal according to control moduleProcess, compressed data packets is delivered to formatting module;
-described formatting module, processes for the load-identification sending according to control module the compression producing to compression moduleBag carries out the format processing of data;
-described control module, for being sent to respectively signal gating mould by gating signal, compression ratio signal, load-identificationPiece, compression module and formatting module.
Preferably, the gating of load data adopts LVDS chip to realize multi channel selecting control, compression module employing standardJPEG2000 image compression algorithm completes the compression processing to satellite load data.
According to space remote sensing compression of images channel multiplexing method provided by the invention, comprise the steps:
Step 1: load data is selected;
Step 2: select different compression ratios according to different load datas, load data is compressed to processing;
Step 3: to compression after packet carry out unified format processing, and in form according to different load pairData identify.
Preferably, described step 1 comprises:
Step 1.1: control module, according to the situation of satellite load output data, is determined the gating of load data;
Step 1.2: control module sends gating signal to signal gating module, and signal gating module is by remote sensing image dataOr other load view data send to compression module.
Preferably, described step 2 comprises:
Step 2.1: control module is according to the difference of load, if remote sensing image data carries out compression ratio as requiredSelection, if other load are selected 1:1 compression, and compression ratio information are sent to compression module;
Step 2.2: the compression ratio control information that compression module sends according to control module, carry out data compression process.
Preferably, described step 3 comprises:
Step 3.1: control module sends load-identification information to formatting module;
Step 3.2: formatting module formats and processes rear output the data of compression module output.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention carries out multiplexing process to the load data that does not need compression in compression module, has reduced loading deviceAnd the interface between messaging device is connected, improve satellite data treatment channel multiplexing efficiency, reduce data processingThe complexity of system.
2, space remote sensing compression of images channel multiplexing method provided by the invention is reliable and stable, can be wide on satelliteGeneral promoting the use of.
Brief description of the drawings
By reading the detailed description of non-limiting example being done with reference to the following drawings, other spy of the present inventionLevy, object and advantage will become more obvious:
Fig. 1 is Remote Sensing Image Compression channel multiplexing system architecture schematic diagram provided by the invention;
Fig. 2 is signal gating modular structure schematic diagram in Remote Sensing Image Compression channel multiplexing system provided by the invention;
Fig. 3 is the flow chart of Remote Sensing Image Compression channel multiplexing method provided by the invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail. Following examples will contribute to the technology people of this areaMember further understands the present invention, but does not limit in any form the present invention. It should be pointed out that the common skill to this areaArt personnel, without departing from the inventive concept of the premise, can also make some distortion and improvement. These all belong toProtection scope of the present invention.
In order to realize the multiplexing function of Remote Sensing Image Compression treatment channel and other payload data stream processing; Thereby reduction dataThe complexity for the treatment of system. The present invention proposes space remote sensing compression of images channel multiplexing system, comprising: signal gating mouldPiece, compression module, formatting module, control module, wherein
-described signal gating module, for completing satellite image data or other years according to the gating signal of control moduleAfter the gating of lotus data, data are delivered to compression module;
-described compression module, compresses the image of satellite load data for the compression ratio signal according to control moduleProcess, compressed data packets is delivered to formatting module;
-described formatting module, processes for the load-identification sending according to control module the compression producing to compression moduleBag carries out the format processing of data;
-described control module, for being sent to respectively signal gating mould by gating signal, compression ratio signal, load-identificationPiece, compression module and formatting module.
Particularly, as shown in Figure 1, signal gating module, the gating signal of reception control module, true according to gating signalSurely export remote sensing image data or other load datas. The structure of this module as shown in Figure 2, pass through by its selection to dataThe LVDS chip with gating function is realized. Control module can be carried out respectively gating control to multichannel load data.
Compression module, adopts the JPEG2000 image compression algorithm of standard to complete the compression processing to satellite load data,Have different compression ratios optional, send compression ratio select signal by control module, compression module is according to different compression ratio logarithmsAccording to compressing processing, wherein, adopt 1:1 compression ratio to compress to other load datas.
Formatting module, processes to compression module the compressed package producing and carries out the format processing of data, according to load notWith, data identify, and distinguish different loads data during for floor treatment;
Control module, sends control signal to above-mentioned modules, completes the control of information flow. According to load data notWith, to signal gating module transmitted signal gating signal, to compression module transmission compression ratio selection signal, to format mouldPiece sends load-identification.
According to space remote sensing compression of images channel multiplexing method provided by the invention, comprise the steps:
Step S1: control module is carried out passage switching to signal gating module, selects remote sensing image data or other loadData;
Step S2: control module is carried out the selection of compression ratio to compression module, remote sensing image data if, according toNeed to select different compression ratios, other load datas if, selecting compression ratio is 1:1;
Step S3: compression module carries out data compression process to the data of signal gating module output;
Step S4: the compressed data packets of compression module is carried out unified format processing by formatting module, in formAccording to different load, data are identified.
Particularly, as shown in Figure 3, comprise the steps:
Step 1: load data is selected;
Step 1.1: control module, according to the situation of satellite load output data, is determined the gating of load data;
Step 1.2: control module sends gating signal to signal gating module, and signal gating module is by remote sensing image dataOr other load view data send to compression module.
Step 2: data compression process.
Step 2.1: control module is according to the difference of load, if remote sensing image data compresses as requiredThe selection of ratio, if other load are selected 1:1 compression, and compression ratio information are sent to compression module;
Step 2.2: the compression ratio control information that compression module sends according to control module, carry out data compression process.
Step 3: providing data formatting processing.
Step 3.1: control module sends load-identification information to formatting module;
Step 3.2: formatting module formats and processes rear output the data of compression module output, if data placeReason finishes to proceed to step 1.
Above specific embodiments of the invention are described. It will be appreciated that, the present invention is not limited toState specific implementations, those skilled in the art can make various distortion or amendment within the scope of the claims,This does not affect flesh and blood of the present invention.
Claims (6)
1. a space remote sensing compression of images channel multiplexing system, is characterized in that, comprising: signal gating module,Compression module, formatting module, control module, wherein
-described signal gating module, for completing according to the gating signal of control module after the gating of load data, willData are delivered to compression module; Load data comprises satellite image data;
-described compression module, compresses the image of satellite load data for the compression ratio signal according to control moduleProcess, compressed data packets is delivered to formatting module;
-described formatting module, processes for the load-identification sending according to control module the compression producing to compression moduleBag carries out the format processing of data;
-described control module, for being sent to respectively signal gating mould by gating signal, compression ratio signal, load-identificationPiece, compression module and formatting module.
2. space remote sensing compression of images channel multiplexing system according to claim 1, is characterized in that charge numberAccording to gating adopt LVDS chip to realize multi channel selecting control, compression module adopts the JPEG2000 compression of images of standardAlgorithm completes the compression processing to satellite load data.
3. a space remote sensing compression of images channel multiplexing method, is characterized in that, comprises the steps:
Step 1: load data is selected;
Step 2: select different compression ratios according to different load datas, load data is compressed to processing;
Step 3: to compression after packet carry out unified format processing, and in form according to different load pairData identify.
4. space remote sensing compression of images channel multiplexing method according to claim 3, is characterized in that described stepRapid 1 comprises:
Step 1.1: control module, according to the situation of satellite load output data, is determined the gating of load data;
Step 1.2: control module sends gating signal to signal gating module, and signal gating module is by remote sensing image dataOr other load view data send to compression module.
5. space remote sensing compression of images channel multiplexing method according to claim 3, is characterized in that described stepRapid 2 comprise:
Step 2.1: control module is according to the difference of load, if remote sensing image data carries out compression ratio as requiredSelection, if other load are selected 1:1 compression, and compression ratio information are sent to compression module;
Step 2.2: the compression ratio control information that compression module sends according to control module, carry out data compression process.
6. space remote sensing compression of images channel multiplexing method according to claim 3, is characterized in that described stepRapid 3 comprise:
Step 3.1: control module sends load-identification information to formatting module;
Step 3.2: formatting module formats and processes rear output the data of compression module output.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108681449A (en) * | 2018-05-17 | 2018-10-19 | 北京航空航天大学 | Digital satellite load information compresses multiple connection source code artificial intelligence Writing method |
| CN114363626A (en) * | 2022-01-04 | 2022-04-15 | 上海航天电子通讯设备研究所 | Satellite-borne ultrahigh-speed image compression system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005123829A (en) * | 2003-10-15 | 2005-05-12 | Nec Electronics Corp | Transcoder, data recorder having same, and method for recording data |
| CN102542750A (en) * | 2010-12-10 | 2012-07-04 | 上海卫星工程研究所 | Data transmission system of LEO (Low Earth Orbit) optical imaging satellite |
| CN104393951A (en) * | 2014-10-21 | 2015-03-04 | 北京空间飞行器总体设计部 | Queuing based remote sensing load universal data processing system |
-
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- 2015-11-18 CN CN201510797188.1A patent/CN105611294B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005123829A (en) * | 2003-10-15 | 2005-05-12 | Nec Electronics Corp | Transcoder, data recorder having same, and method for recording data |
| CN102542750A (en) * | 2010-12-10 | 2012-07-04 | 上海卫星工程研究所 | Data transmission system of LEO (Low Earth Orbit) optical imaging satellite |
| CN104393951A (en) * | 2014-10-21 | 2015-03-04 | 北京空间飞行器总体设计部 | Queuing based remote sensing load universal data processing system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108681449A (en) * | 2018-05-17 | 2018-10-19 | 北京航空航天大学 | Digital satellite load information compresses multiple connection source code artificial intelligence Writing method |
| CN114363626A (en) * | 2022-01-04 | 2022-04-15 | 上海航天电子通讯设备研究所 | Satellite-borne ultrahigh-speed image compression system |
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