CN202794517U - SAR object real-time detecting device - Google Patents
SAR object real-time detecting device Download PDFInfo
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- CN202794517U CN202794517U CN 201220179143 CN201220179143U CN202794517U CN 202794517 U CN202794517 U CN 202794517U CN 201220179143 CN201220179143 CN 201220179143 CN 201220179143 U CN201220179143 U CN 201220179143U CN 202794517 U CN202794517 U CN 202794517U
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Abstract
The utility model discloses an SAR object real-time detecting device, which comprises an SAR image obtaining module, a central processor module, an image processing module and an image display module. The central processor module is connected with a buffer memory and a power supply module, and is used for transmitting received SAR image data to the image processing module and receiving the data processed by the image processing module; the image processing module is connected with the central processor module, and comprises a data reception unit, an object detection unit and a data transmission unit, wherein the data reception unit is used for receiving the SAR image data transmitted by the central processor module, the object detection unit detects and processes objects, and the data transmission unit transmits the processed data to the data central processor module; and the image display module is connected with the central processor module via a PAL interface or a VGA interface, and is used for receiving the processed data output by the central processor module. Thus, the application capability and the accuracy of an SAR sensor in the field of object detection are greatly improved.
Description
Technical field
The technical field of image processing that the utility model relates to relates in particular to a kind of SAR target real-time detection apparatus.
Background technology
The SAR(synthetic-aperture radar) sensor has all weather operations, and certain penetration power is arranged, and can differentiate false target, and it has some superiority in the military target context of detection.The detection and Identification of SAR Image Automatic Target militarily are mainly used in the national defence warning aspect, comprise to the other side's military surveillance and to one's own side's monitoring.Along with improving constantly of SAR imaging resolution, become possibility so that identify exactly terrain object.Research on Target, such as tank, panzer, the Real time identification of howitzer etc. becomes focus and the difficult point of the outer research of Present Domestic.But not yet develop SAR target real-time detection apparatus.
The utility model content
The purpose of this utility model provides a kind of SAR target real-time detection apparatus.
Above-mentioned purpose realizes by following proposal:
A kind of SAR target real-time detection apparatus is characterized in that described device comprises:
The SAR image collection module, it arrives CPU module by differential interface and difference chip, and this SAR image collection module is used for obtaining the SAR imaging data, and sends the data to described CPU module;
CPU module, it is connected with memory buffer and power module, and described CPU module is used for the SAR view data that receives is sent to image processing module, and receives the data after described image processing module is processed;
Image processing module, it is connected with described CPU module, and this image processing module comprises data receiver unit and data transmission unit, and this data receiver unit is used for receiving the SAR view data that described CPU module sends, and this image is processed mould
[0005]Piece has the object detection process function, and the data after this data transmission unit will be processed send to described CPU module;
Image display, it is connected with described CPU module by PAL or VGA interface, is used for receiving the treated data of CPU module output.
SAR target real-time detection apparatus according to above-mentioned is characterized in that described image processing module is connected with independently storer.
SAR target real-time detection apparatus according to above-mentioned is characterized in that described memory buffer is the DDR2 storer.
SAR target real-time detection apparatus according to above-mentioned is characterized in that described independently storer is the SRAM storer.
SAR target real-time detection apparatus according to above-mentioned is characterized in that described CPU module is FPGA, and described central processing module is connected with described image processing module by the EMIF interface.
SAR target real-time detection apparatus according to above-mentioned is characterized in that, described CPU module is connected with the VGA display interface by the ADV7123 digital to analog converter.
SAR target real-time detection apparatus according to above-mentioned is characterized in that, described CPU module is connected with PAL TV display interface by the SAA7111 image encoder.
The beneficial effects of the utility model: the present invention processes the SAR imaging data in real time, adopt two stage CFAR detection methods, and in conjunction with the EF feature, realized the detection of SAR target, and have a higher detection (low false alarm rate), greatly improved application power and the accuracy of (especially military field) in the target reconnaissance field of SAR sensor.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of object detection unit.
Embodiment
Referring to Fig. 1, SAR target real-time detection apparatus of the present utility model comprises:
SAR image collection module 1 is connected to CPU module 4 by differential interface 2 and differential interface chip 3, SAR image collection module 1 is used for obtaining the SAR imaging data, and send the data to described CPU module 4, differential interface chip 3 optional SN55LVDS32; CPU module 4 is connected with memory buffer 6 and power module 7, CPU module 4 is used for the SAR view data that receives is sent to image processing module 5, and the data after 5 processing of reception image processing module, memory buffer 6 optional DDR2 storeies; Image processing module 5 is connected with CPU module 4, image processing module 5 comprises data receiver unit 9, object detection unit 10 and data transmission unit 11, the data receiver unit is used for receiving the SAR view data that CPU module 4 sends, object detection unit 10 is carried out object detection process, and the data after data transmission unit 11 will be processed send to CPU module 4; Image display 8 is connected with CPU module 4 by PAL interface 12 or VGA interface 13, is used for receiving the treated data of CPU module 4 outputs.
For accelerating image processing speed, image processing module 5 is connected with independently storer 14.Storer 14 optional SRAM storeies independently.
CPU module 4 can be FPGA, and central processing module 4 is connected with image processing module 5 by EMIF interface 15.
CPU module 4 is connected with VGA output interface 13 by ADV7123 digital to analog converter 16.Perhaps, CPU module 4 is connected with PAL output interface 12 by SAA7111 image encoder 17.
As shown in Figure 2, object detection unit 10 comprises: SAR view data coherent spot filter unit 20 is used for the SAR view data is carried out coherent spot filtering; Clutter statistical model construction unit 21 is used for making up the clutter statistical model according to filtered view data; Target detection and UNICOM unit 22 are used for using CFAR fractal for improving in conjunction with EF(EF, a kind of SAR object detection method) carry out target detection, and use homomorphic filtering to reach the target area connectivity; Location and feature extraction unit 23 are used for carrying out ROI location and feature extraction.
Claims (7)
1. SAR target real-time detection apparatus is characterized in that described device comprises:
The SAR image collection module, it arrives CPU module by differential interface and difference chip, and this SAR image collection module is used for obtaining the SAR imaging data, and sends the data to described CPU module;
CPU module, it is connected with memory buffer and power module, and described CPU module is used for the SAR view data that receives is sent to image processing module, and receives the data after described image processing module is processed;
Image processing module, it is connected with described CPU module, this image processing module comprises data receiver unit and data transmission unit, this data receiver unit is used for receiving the SAR view data that described CPU module sends, this image processing module has the object detection process function, and the data after this data transmission unit will be processed send to described CPU module;
Image display, it is connected with described CPU module by PAL or VGA interface, is used for receiving the treated data of CPU module output.
2. SAR target real-time detection apparatus according to claim 1 is characterized in that described image processing module is connected with independently storer.
3. SAR target real-time detection apparatus according to claim 1 is characterized in that, described memory buffer is the DDR2 storer.
4. SAR target real-time detection apparatus according to claim 2 is characterized in that, described independently storer is the SRAM storer.
5. SAR target real-time detection apparatus according to claim 1 is characterized in that, described CPU module is FPGA, and described central processing module is connected with described image processing module by the EMIF interface.
6. SAR target real-time detection apparatus according to claim 1 is characterized in that, described CPU module is connected with the VGA display interface by the ADV7123 digital to analog converter.
7. SAR target real-time detection apparatus according to claim 1 is characterized in that, described CPU module is connected with PAL TV display interface by the SAA7111 image encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220179143 CN202794517U (en) | 2012-04-25 | 2012-04-25 | SAR object real-time detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220179143 CN202794517U (en) | 2012-04-25 | 2012-04-25 | SAR object real-time detecting device |
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| Publication Number | Publication Date |
|---|---|
| CN202794517U true CN202794517U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220179143 Expired - Lifetime CN202794517U (en) | 2012-04-25 | 2012-04-25 | SAR object real-time detecting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103685977A (en) * | 2013-09-11 | 2014-03-26 | 中国科学院电子学研究所 | An apparatus for real time displaying of images of a synthetic aperture radar |
| CN104216324A (en) * | 2014-09-09 | 2014-12-17 | 中国电子科技集团公司第三十八研究所 | Synthetic aperture radar task management controller and related method thereof |
-
2012
- 2012-04-25 CN CN 201220179143 patent/CN202794517U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103685977A (en) * | 2013-09-11 | 2014-03-26 | 中国科学院电子学研究所 | An apparatus for real time displaying of images of a synthetic aperture radar |
| CN103685977B (en) * | 2013-09-11 | 2016-08-24 | 中国科学院电子学研究所 | A kind of device of real-time display diameter radar image |
| CN104216324A (en) * | 2014-09-09 | 2014-12-17 | 中国电子科技集团公司第三十八研究所 | Synthetic aperture radar task management controller and related method thereof |
| CN104216324B (en) * | 2014-09-09 | 2017-02-08 | 中国电子科技集团公司第三十八研究所 | Related methods of synthetic aperture radar task management controller |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100192 Beijing city Haidian District West Road No. 66 small Zhongguancun Dongsheng Technology Park building D-3 Room 101 Patentee after: Beijing Zhongke Rong Polytron Technologies Inc Address before: 100192 Beijing city Haidian District West Road No. 66 small Zhongguancun Dongsheng Technology Park building D-3 Room 101 Patentee before: Beijing Zhongke Rongda Information Technology Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |