InSAR image data compression

doi:10.7523/j.issn.1002-1175.2013.03.016

Abstract

Abstract:

The compression problem of InSAR image data is investigated. A new InSAR data compression method is presented, and it consists of an amplitude image compression and an interferogram compression. We provide the signal processing flow and two data compression methods on board which are based on DCT and DWT, respectively. The compression performance of InSAR image data is analyzed. In order to reject the speckles impact on interferogram, the pivoting median filter is applied before the interferogram is compressed. The processing results of real data and simulation data under different signal-to-noise ratios show the validity of our method.

Key words: InSAR, image data, data compression, pivoting median filter, error analysis

CLC Number:

TN957.52

ZHANG Qing-Juan, LI Dao-Jing. InSAR image data compression[J]. , 2013, 30(3): 380-386.

References

[1] Qiu X L, Lei B, Ge Y P, et al. Performance evaluation of two compression methods for SAR raw data[J]. Journal of Electronics & Information Technology, 2010, 32(9): 2268-2272(in Chinese). 仇晓兰, 雷斌,葛蕴萍,等. SAR原始数据两种量化压缩方式的性能评估[J]. 电子与信息学报, 2010, 32(9): 2268-2272.

[2] Li G J, Zhang R N. Comparison of InSAR raw data compression algorithms[J]. Space Craft Engineering, 2007, 16(2):71-76(in Chinese). 李国军, 张润宁. 干涉SAR原始数据压缩算法的比较研究[J]. 航天器工程, 2007, 16(2):71-76.

[3] Huan B, Qi H, Zhang P. Vector quantization for saturated SAR raw data compression[J]. Advances in Space Research, 2010, 45: 1330-1337.

[4] Gergic B, Planinsic P, Banjanin B, et al. A comparison between SAR data compression in Cartesian and polar coordinates[J]. International Journal of Remote Sensing, 2004, 25(10):1987-1994.

[5] Song H M, Luo Q, Wang Y F, et al. Time frequency domain amplitude phase algorithm for SAR raw data compression[J]. Modern Radar, 2010, 32(8): 44-47(in Chinese). 宋鸿梅,罗倩, 王岩飞,等. SAR原始数据时频域幅相压缩算法[J]. 现代雷达, 2010, 32(8): 44-47.

[6] Zhao Y D. SAR image compression based on wavelet transformation [D]. Beijing: Institute of Electronics, Chinese Academy of Sciences, 2004(in Chinese). 赵跃东. 合成孔径雷达图像的小波域压缩[D]. 北京:中国科学院电子学研究所, 2004.

[7] Wang L, Zhang Z M. SAR image compression based on modified SPIHP[J]. Journal of Graduate University of Chinese Academy of Sciences, 2012, 29(2): 220-226(in Chinese). 王璐, 张志敏. 基于改进SPIHP算法的SAR图像压缩[J]. 中国科学院大学学报, 2012, 29(2): 220-226.

[8] Zhang Z N, Huang R T, Yan J W. InSAR image compression based on wavelet transformation and fast vector quantization[J]. Computer Applications, 2006, 26(5): 1009-1011(in Chinese). 张宗念, 黄仁泰, 闫敬文. 基于小波变换和快速矢量量化的InSAR图像压缩[J]. 计算机应用, 2006, 26(5): 1009-1011.

[9] 王超, 张红, 刘智. 星载合成孔径雷达干涉测量[M]. 北京: 科学出版社, 2002: 33-36.

[10] Lanari R, Fornaro G, et al. Generation of digital elevation models by using SIR-C/X-SAR multifrequency two-pass interferometry: the etna case study[J]. IEEE Trans on GRS, 1996, 34(5): 1097-1114.

[11] 保铮, 邢孟道, 王彤. 雷达成像技术[M]. 北京:电子工业出版社, 2010:275-301.

[12] Qi H, Yu W, Yuan X, et al. Performance evaluation of amplitude-phase algorithm for SAR raw data compression[C]//IEEE International Geoscience and Remote Sensing Symposium. Denver, CO, Jul 31-Aug 04. 2006: 809-812.

[13] Li Y, Chen H L. Evaluation method of jamming effect on ISAR based on correlation coefficient[J]. Journal of University of Electronic Science and Technology of China, 2006, 35(4): 468-470(in Chinese). 李源, 陈惠连. 基于相关系数的ISAR干扰效果评估方法[J]. 电子科技大学学报, 2006, 35(4): 468-470.

[14] Wang B N. Research on flexible baseline interferometry SAR signal simulation system [D]. Beijing: Institute of Electronics, Chinese Academy of Sciences, 2011(in Chinese). 汪丙南. 柔性基线干涉SAR信号仿真研究[D]. 北京:中国科学院电子学研究所, 2011.

[15] Ian G Cumming, Frank H Wong. 合成孔径雷达成像——算法与实现[M]. 洪文, 胡东辉,译. 北京: 电子工业出版社, 2007: 219-245.