合成孔径雷达高度计的波形重跟踪与仿真试验分析

doi:10.11947/j.AGCS.2017.20160213

测绘学报 ›› 2017, Vol. 46 ›› Issue (2): 151-156.doi: 10.11947/j.AGCS.2017.20160213

合成孔径雷达高度计的波形重跟踪与仿真试验分析

翟振和^1,2, 史灵卫³

1. 地理信息工程国家重点实验室, 陕西西安 710054;
2. 西安测绘研究所, 陕西西安 710054;
3. 中国科学院国家空间科学中心, 北京 100190

收稿日期:2016-03-07 修回日期:2016-11-16 出版日期:2017-02-20 发布日期:2017-03-07
作者简介:翟振和(1980-),男,博士,助理研究员,研究方向为卫星测高、航空重力测量。E-mail:zhaizhenhe1980@163.com
基金资助:
国家自然科学基金（41674082）

Waveform Retracking and Emulation Experiment Analysis of Synthetic Aperture Radar Altimeter

ZHAI Zhenhe^1,2, SHI Lingwei³

1. State Key Laboratory of Geo-information Engineering, Xi'an 710054, China;
2. Xi'an Institute of Surveying and Mapping, Xi'an 710054, China;
3. National Space Science Center, the Chinese Academy of Sciences, Beijing 100190, China

Received:2016-03-07 Revised:2016-11-16 Online:2017-02-20 Published:2017-03-07
Supported by:
The National Natural Science Foundation of China (No. 41674082)

摘要/Abstract

摘要： 基于初步研究获得的合成孔径雷达高度计卷积模型，推导获得合成孔径雷达高度计波形关于时间偏移、合成上升时间、信号幅度3个参数偏导数的卷积计算公式，利用数值积分及傅里叶变换实现合成孔径高度计回波模型的重跟踪。在多个单位联合协同下，利用仿真轨道、对流层、电离层及潮汐等模型生成了合成孔径模式下的回波波形。对比表明，仿真生成的合成孔径模式下的回波波形与CryoSat-2卫星SAR模式下的回波波形整体形状一致。利用仿真波形数据进行重跟踪试验，结果表明在20 Hz数据条件下（约350 m分辨率），合成孔径模式下的重跟踪精度达到5 cm，较之传统模式有一定的提高。

关键词: 合成孔径雷达高度计, 波形重跟踪, 卷积计算

Abstract: Based on the synthetic aperture radar(SAR) convolution model, the convolution computation formula about the derivative of three parameters of time migration, rise time and amplitude are deduced. The SAR waveform retracking is completed using numerical integration and Fourier transform. Besides, the echo waveform under SAR model is generated using the simulation orbit, troposphere, ionosphere and tide model. The comparison shows that the shape of echo waveform under SAR model is the same as that of CryoSat-2 1 Hz SAR. The experiments show that the accuracy of SAR altimeter retracking is about 5 cm under the 20 Hz data(about 350 m resolution), which are improved compared with that of the traditional model.

Key words: synthetic aperture radar altimeter, waveform retracking, convolution computation

中图分类号:

P228

翟振和, 史灵卫. 合成孔径雷达高度计的波形重跟踪与仿真试验分析[J]. 测绘学报, 2017, 46(2): 151-156.

ZHAI Zhenhe, SHI Lingwei. Waveform Retracking and Emulation Experiment Analysis of Synthetic Aperture Radar Altimeter[J]. Acta Geodaetica et Cartographica Sinica, 2017, 46(2): 151-156.

参考文献

[1] THIBAUT P, POISSON J C, BRONNER E, et al. Relative Performance of the MLE3 and MLE4 Retracking Algorithms on JASON-2 Altimeter Waveforms[J]. Marine Geodesy, 2010, 33(S1):317-335.
[2] 郭金运, 常晓涛, 孙佳龙, 等. 卫星雷达测高波形重定及应用[M]. 北京:测绘出版社, 2013. GUO Jinyun, CHANG Xiaotao, SUN Jialong, et al. Waveform Retracking of Satellite Radar Altimeter and Applications[M]. Beijing:Surveying and Mapping Press, 2013.
[3] 汪海洪, 罗志才, 杨元德, 等. 基于波形分类的近海卫星测高数据自适应重跟踪方法[J]. 测绘学报, 2012, 41(5):729-734. WANG Haihong, LUO Zhicai, YANG Yuande, et al. An Adaptive Retracking Method for Coastal Altimeter Data Based on Waveform Classification[J]. Acta Geodaetica et Cartographica Sinica, 2012, 41(5):729-734.
[4] 鲍李峰, 陆洋, 许厚泽. 浅海区域TOPEX/Poseidon测高卫星数据波形重构方法[J]. 地球物理学报, 2004, 47(2):216-221. BAO Lifeng,LU Yang, XU Houze. Waveform Retracking of TOPEX/Poseidon Altimeter in Chinese Offshore[J]. Chinese Journal of Geophysics, 2004, 47(2):216-221.
[5] 常晓涛, 李建成, 郭金运, 等. 一种多前缘多阈值的波形重构算法[J]. 地球物理学报, 2006, 49(6):1629-1634. CHANG Xiaotao, LI Jiancheng, GUO Jinyun, et al. A Multi-leading Edge and Multi-threshold Waveform Retracker[J]. Chinese Journal of Geophysics, 2006, 49(6):1629-1634.
[6] 杨乐, 林明森, 张有广, 等. 中国近岸海域高度计JASON-1测量数据的波形重构算法研究[J]. 海洋学报, 2010, 32(6):91-101. YANG Le, LIN Mingsen, ZHANG Youguang, et al. Improving the Quality of JASON-1 Altimetry Data by Waveform Retracking in Coastal Waters off China[J]. Acta Oceanologica Sinica, 2010, 32(6):91-101.
[7] 郭金运, 高永刚, 常晓涛, 等. 近岸海域EnviSat卫星测高波形重定的Threshold优化算法[J]. 地球物理学报, 2010, 53(4):807-814. GUO Jinyun, GAO Yonggang, CHANG Xiaotao, et al. Optimal Threshold Algorithm of EnviSat Waveform Retracking over Coastal Sea[J]. Chinese Journal of Geophysics, 2010, 53(4):807-814.
[8] 杨元德, 鄂栋臣, 黄金维, 等. GeoSat/GM波形重跟踪反演中国沿海区域重力异常[J]. 武汉大学学报(信息科学版), 2008, 33(12):1288-1291. YANG Yuande, E Dongchen, HUANG Jinwei, et al. Chinese Coastal Gravity Anomalies from Wave-form Retracked GeoSat/GM Altimetry[J]. Geomatics and Information Science of Wuhan University, 2008, 33(12):1288-1291.
[9] 褚永海, 李建成, 张燕, 等. EnviSat测高数据波形重跟踪分析研究[J]. 大地测量与地球动力学, 2005, 25(1):76-80. CHU Yonghai, LI Jiancheng, ZHANG Yan, et al. Analysis and Investigation of Waveform Retracking Data of EnviSat[J]. Journal of Geodesy and Geodynamics, 2005, 25(1):76-80.
[10] HWANG C, GUO Jinyun, DENG Xiaoli, et al. Coastal Gravity Anomalies from Retracked GeoSat/GM Altimetry:Improvement, Limitation and the Role of Airborne Gravity Data[J]. Journal of Geodesy, 2006, 80(4):204-216.
[11] 翟振和, 孙中苗. JASON-2高度计数据在中国四大海域的波形重跟踪与分析[J]. 武汉大学学报(信息科学版), 2015, 40(11):1499-1503. ZHAI Zhenhe, SUN Zhongmiao. Waveform Retracking Analysis of JASON-2 Altimeter Data in the Four Chinese Sea Area[J]. Geomatics and Information Science of Wuhan University, 2015, 40(11):1499-1503.
[12] 翟振和, 李晓燕. 解析Brown模型中波形参数的最小二乘估计的实现与验证[J]. 测绘科学与工程, 2015, 35(3):6-9, 15. ZHAI Zhenhe, LI Xiaoyan. Least Square Estimation of Waveform Parameters of Analytical Brown Model[J]. Geomatics Science and Engineering, 2015, 35(3):6-9, 15.
[13] RANEY R K. The Delay/Doppler Radar Altimeter[J]. IEEE Transactions on Geoscience and Remote Sensing, 1998, 36(5):1578-1588.
[14] JENSEN J R. Radar Altimeter Gate Tracking:Theory and Extension[J]. IEEE Transactions on Geoscience and Remote Sensing, 1999, 37(2):651-658.
[15] 许可, 王志森, 杨双宝. 小型延时多普勒雷达高度计[J]. 遥感学报, 2007, 11(3):380-384. XU Ke, WANG Zhisen, YANG Shuangbao. Compact Delay Doppler Radar Altimeter[J]. Journal of Remote Sensing, 2007, 11(3):380-384.
[16] 史灵卫. 合成孔径雷达高度计的数据处理和精度分析[D]. 北京:中国科学院研究生院, 2011. SHI Lingwei. The Data Processing and Accuracy Analysis of Synthetic Aperture Radar Altimeter[D]. Beijing:Graduate University of Chinese Academy of Science, 2011.
[17] SEPULVEDA H H, QUEFFEULOU P, ARDHUIN F. Assessment of SARAL/AltiKa Wave Height Measurements Relative to Buoy, JASON-2, and CryoSat-2 Data[J]. Marine Geodesy, 2015, 38(S1):449-465.
[18] 魏鑫, 李斐, 张胜凯, 等. CryoSat-2卫星测高计划及其应用[J]. 极地研究, 2015, 27(4):446-453. WEI Xin, LI Fei, ZHANG Shengkai, et al. CryoSat-2 Satellite Altimetry and Its Application[J]. Chinese Journal of Polar Research, 2015, 27(4):446-453.
[19] DINARDO S, LUCAS B, BENVENISTE J. Sentinel-3 STM SAR Ocean Retracking Algorithm and SAMOSA Model[C]//Proceedings of 2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS). Milan:IEEE, 2015:5320-5323.
[20] HALIMI A, MAILHES C, TOURNERET J Y, et al. A Semi-analytical Model for Delay/Doppler Altimetry and Its Estimation Algorithm[J]. IEEE Transactions on Geoscience and Remote Sensing, 2014, 52(7):4248-4258.
[21] 王立伟, 金涛勇, 张胜军, 等. CryoSat-2卫星海冰区域波形识别及海冰干舷高确定[J]. 大地测量与地球动力学, 2015, 35(4):722-725. WANG Liwei, JIN Taoyong, ZHANG Shengjun, et al. CryoSat-2 Satellite Sea Ice Area Waveform Recognition and Freeboard Determined[J]. Journal of Geodesy and Geodynamics, 2015, 35(4):722-725.
[22] GARCIA E,SANDWELL D T,SMITH W H F.Retracking CryoSat-2, EnviSat and JASON-1 Radar Altimetry Waveforms for Improved Gravity Field Recovery[J]. Geophysical Journal International, 2014, 196(3):1402-1422.
[23] GOMMENGINGER C, MARTIN-PUIG C, DINARDO S, et al. Improved Altimetric Accuracy of SAR Altimeters over Ocean[C]//Proceedings of Ocean Surface Topography Science Team Meeting. San Diego:[s.n.], 2011.
[24] GOMMENGINGER C, CIPOLLINI P, COTTON P D, et al. Finer, Better, Closer:Advanced Capabilities of SAR Altimetry in the Open Ocean and the Coastal Zone[C]//Proceedings of Ocean Surface Topography Science Team Meeting. Venice-Lido:[s.n.], 2012.
[25] 张登奇, 陈佳. 离散卷积的算法分析及MATLAB实现[J]. 湖南理工学院学报(自然科学版), 2013, 26(2):48-52, 89. ZHANG Dengqi,CHEN Jia.Analysis of Discrete Convolution Algorithm and Realization Based on MATLAB[J]. Journal of Hunan Institute of Science and Technology (Natural Sciences), 2013, 26(2):48-52, 89.
[26] 翟振和. 海洋测高卫星数据处理理论及应用方法研究[D]. 郑州:信息工程大学, 2015. ZHAI Zhenhe. Researches on Theories and Algorithms of Data Processing and Application in Altimetry Satellite[D]. Zhengzhou:Information Engineering University, 2015.

合成孔径雷达高度计的波形重跟踪与仿真试验分析

Waveform Retracking and Emulation Experiment Analysis of Synthetic Aperture Radar Altimeter

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