| Study on a compression algorithm of SAR data after range focusing | |
Zeng, Shang-Chun1; Xie, Yun-Xia2; Chen, Yi-Xian1; Deng, Xian-Lin3 ; Huazhang, Wang1
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| 2014 | |
| 发表期刊 | Open Automation and Control Systems Journal
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| 卷号 | 6期号:1页码:17-23 |
| 摘要 | It is difficult to directly compress the raw data of synthetic aperture radar because of its low relativity. In this paper, a new algorithm is put forward. Firstly, range focusing is imposed to SAR raw data, which makes it have comparatively high relativity, secondly, a linear prediction is performed along the azimuth, and lastly, block adaptive quantization is performed on the prediction difference series. By using a set of real SAR raw data, compression and decompression are performed respectively. The SQNR and SDNR are achieved. The images corresponding to the three algorithms are gained. The experiments manifest that with same bit rate, SQNR and SDNR of the algorithm proposed in this paper surpass that of BAQ algorithm. The calculation in this paper is far less than that of compression method after range focusing advised in corresponding reference. The algorithm proposed in this paper has a certain practical value. © Zeng et al. |
| 关键词 | Algorithms Focusing Forecasting Relativity Signal to noise ratio Synthetic aperture radar Bit rates Block adaptive quantizations Compression algorithms Compression methods Linear prediction Range focusing SAR data SAR raw data |
| DOI | 10.2174/1874444301406010017 |
| 收录类别 | EI |
| 语种 | 英语 |
| 出版者 | Bentham Science Publishers B.V., P.O. Box 294, Bussum, 1400 AG, Netherlands |
| EI入藏号 | 20141917700511 |
| EI分类号 | 711.1 Electromagnetic Waves in Different Media ; 716.1 Information Theory and Signal Processing ; 716.2 Radar Systems and Equipment ; 723 Computer Software, Data Handling and Applications ; 921 Mathematics ; 931.5 Gravitation, Relativity and String Theory |
| 原始文献类型 | Journal article (JA) |
| 文献类型 | 期刊论文 |
| 条目标识符 | https://ir.cqcet.edu.cn/handle/39TD4454/2955 |
| 专题 | 图文信息中心 |
| 作者单位 | 1.College of Electrical and Information Engineering, Southwest University for Nationalities, Chengdu, 610041, China; 2.School of Science, Sichuan University of Science and Engineering, Zigong, 643000, China; 3.Department of Electronic Information, Chongqing College of Electronic Engineering, Chongqing, 401331, China |
| 推荐引用方式 GB/T 7714 | Zeng, Shang-Chun,Xie, Yun-Xia,Chen, Yi-Xian,et al. Study on a compression algorithm of SAR data after range focusing[J]. Open Automation and Control Systems Journal,2014,6(1):17-23. |
| APA | Zeng, Shang-Chun,Xie, Yun-Xia,Chen, Yi-Xian,Deng, Xian-Lin,&Huazhang, Wang.(2014).Study on a compression algorithm of SAR data after range focusing.Open Automation and Control Systems Journal,6(1),17-23. |
| MLA | Zeng, Shang-Chun,et al."Study on a compression algorithm of SAR data after range focusing".Open Automation and Control Systems Journal 6.1(2014):17-23. |
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