一种消除合成孔径雷达高度计延迟校正中残余误差的新算法及仿真验证

王磊; 许可; 史灵卫; 杨双宝

doi:10.11999/JEIT150282

一种消除合成孔径雷达高度计延迟校正中残余误差的新算法及仿真验证

doi: 10.11999/JEIT150282

计量
- 文章访问数: 1214
- HTML全文浏览量: 140
- PDF下载量: 577
- 被引次数: 0
出版历程
- 收稿日期: 2015-03-09
- 修回日期: 2015-06-29
- 刊出日期: 2015-11-19

A New Range Migration Correction Algorithm and Its Simulation for SAR Altimeter

摘要

摘要: 合成孔径雷达高度计可以获得比传统雷达高度计更高的测量精度，延迟校正是其中的核心技术。在雷达收发脉冲的间隔内，由于卫星运动，目标与雷达之间的距离变化会带来残余误差，这点在现有的延迟校正算法中都未考虑。该文研究了垂直速度和水平速度对延迟校正的影响，建立了合成孔径雷达高度计的延迟校正模型，提出了一个新的延迟校正算法，消除了卫星垂直速度和水平速度带来的残余误差。最后通过计算机仿真进行了验证，仿真结果表明，该文提出的算法可得到准确的校正结果。
- 合成孔径雷达高度计 /
- 延迟校正算法 /
- 残余误差
Abstract: The Range Migration Correction (RMC) is a key technique of synthetic aperture radar altimeter which is more precise than the conventional radar altimeter. Because of the satellite motion, the distance change between the satellite and the observed target will bring about some residual errors, but they are ignored in the existing RMC algorithms. In this paper, the influences of the vertical and horizontal velocities of the satellite are studied, then an RMC model is builded, and finally a new RMC algorithm which corrects not only the slant range error but also the residual errors is proposed. The simulation results show that this new algorithm can obtain more accurate outcomes.
- SAR altimeter /
- Range migration algorithm /
- Residual error

HTML全文

参考文献(21)

Jensen J R and Raney R K. Delay/Doppler radar altimeter: better measurement precision[C]. 1998 IEEE International Geoscience and Remote Sensing Symposium Proceedings, Seattle, WA, 1998, 4: 2011-2013.

Raney R K. The delay/Doppler radar altimeter[J]. IEEE Transactions on Geoscience and Remote Sensing, 1998, 36(5): 1578-1588.

Phalippou L and Enjolras V. Re-tracking of SAR altimeter ocean power-waveforms and related accuracies of the retrieved sea surface height, significant wave height and wind speed[C]. IEEE International Geoscience and Remote Sensing Symposium Proceedings, Barcelona, 2007: 3533-3536.

Raney R K. Resolution and precision of a delay-Doppler radar altimeter[C]. IEEE Proceedings of OCEANS 2005, Washington, 2005, 3: 1989-1993.

Galin N, Wingham D J, Cullen R, et al.. Measuring the pitch of CryoSat-2 using the SAR mode of the SIRAL altimeter [J]. IEEE Geoscience and Remote Sensing Letters, 2014, 11(8): 1399-1403.

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.

Jain M, Andersen O B, Dall J, et al.. Sea surface height determination in the Arctic using Cryosat-2 SAR data from primary peak empirical retrackers[J]. Advances in Space Research, 2015, 55(1): 40-50.

Donlon C, Berruti B, Buongiorno A, et al.. The Global Monitoring for Environment and Security (GMES) Sentinel-3 Mission[J]. Remote Sensing of Environment, 2012, 120: 37-57.

Halimi A, Mailhes C, Tourneret J Y, et al.. Including antenna mispointing in a semi-analytical model for Delay/Doppler altimetry[J]. IEEE Transactions on Geoscience and Remote Sensing, 2015, 53(2): 598-608.

Fenlglio-Marc L, Dinardo S, Scharroo R, et al.. The German Bight: a validation of CryoSat-2 altimeter data in SAR mode[J]. Advances in Space Research, 2015, 55(11): 2641-2656. [11] Halimi A, Mailhes C, Tourneret J Y, et al.. Exploiting time and frequency information for Delay/Doppler altimetry[C]. Signal Processing Conference (EUSIPCO), Lisbon, 2014: 1088-1092.

Ray C, Martin-Puig C, Clarizia M P, et al.. SAR altimeter backscattered waveform model[J]. IEEE Transactions on Geoscience and Remote Sensing, 2015, 53(2): 911-919.

D,Aria D, Guccione P, Rosich B, et al.. Delay/Doppler altimeter data processing[C]. IEEE International Geoscience and Remote Sensing Symposium, Barcelona, 2007: 137-140.

保铮, 邢孟道, 王彤. 雷达成像技术[M]. 北京: 电子工业出版社, 2005: 27-30.

Bao Zheng, Xing Meng-dao, and Wang Tong. Radar Imaging Technology[M]. Beijing: Publishing House of Electronics Industry, 2005: 27-30.

杨双宝. 基于合成孔径技术的高精度雷达高度计技术研究[D]. [博士论文], 中国科学院(空间科学与应用研究中心), 2007.

Yang Shuang-bao. Study of heigh precision SAR altimteter technology[D]. [Ph.D. dissertation], Center for Space Science and Applied Research, Chinese Academy of Sciences, 2007.

杨双宝, 刘和光, 许可. 合成孔径高度计的海面回波仿真[J]. 遥感学报, 2008, 11(4): 446-451.

Yang Shuang-bao, Liu He-guang, and Xu Ke. The simulation of sea surface echo of synthetic aperture radar altimeter[J]. Journal of Remote Sensing, 2008, 11(4): 446-451.

Sun Yi-ping and Sweeting M. Directional wave spectrum estimation by synthetic aperture radar altimeter[C]. IEEE International Geoscience and Remote Sensing Symposium Proceedings, Honolulu, HI, 2000, 5: 2340-2342.

Donelan M A and Pierson W J. Radar scattering and equilibrium ranges in wind-generated waves with application to scatterometry[J]. Journal of Geophysical Research: Oceans, 1987, 92(C5): 4971-5029.

Yang Shuang-bao, Liu He-guang, Xu Ke, et al.. The mean echo model and data process of SAR altimeter[C]. IEEE International Geoscience and Remote Sensing Symposium Proceedings, Vancouver, BC, 2011: 2077-2080.

施引文献

资源附件(0)

访问统计