Zhang Yong-jun, Huang Hai-feng, Zhang Yong-sheng, Liang Dian-nong. Research on Elliptic Orbit Total Zero Doppler Steering[J]. Journal of Electronics & Information Technology, 2010, 32(4): 937-940. doi: 10.3724/SP.J.1146.2009.00480
Citation:
Zhang Yong-jun, Huang Hai-feng, Zhang Yong-sheng, Liang Dian-nong. Research on Elliptic Orbit Total Zero Doppler Steering[J]. Journal of Electronics & Information Technology, 2010, 32(4): 937-940. doi: 10.3724/SP.J.1146.2009.00480
Zhang Yong-jun, Huang Hai-feng, Zhang Yong-sheng, Liang Dian-nong. Research on Elliptic Orbit Total Zero Doppler Steering[J]. Journal of Electronics & Information Technology, 2010, 32(4): 937-940. doi: 10.3724/SP.J.1146.2009.00480
Citation:
Zhang Yong-jun, Huang Hai-feng, Zhang Yong-sheng, Liang Dian-nong. Research on Elliptic Orbit Total Zero Doppler Steering[J]. Journal of Electronics & Information Technology, 2010, 32(4): 937-940. doi: 10.3724/SP.J.1146.2009.00480
For spaceborne Synthetic Aperture Radar(SAR) processing, Doppler property influences the azimuth performance and the imaging accuracy directly. In this paper, the Doppler centroid frequency expression based on elliptical orbit is derived analytically. The influences of the yaw steering and the pitch steering are analyzed respectively. Then, a new method called elliptic orbit total Zero Doppler steering is proposed, and a simulation for TerraSAR-X parameters shows its advantages. The simulation results indicate that this method reduces the Doppler centroid 100 times smaller than currently applied yaw steering methods, and 5 times smaller than the circular orbit total Zero Doppler steering, which illuminates the applicability of the method.
Zhang Yun-hua and Zhai Wen-shuai. A new method forDoppler cenrtoid estimation for spaceborne SAR based onchirp scaling algorithm. Geoscience and Remote SensingSymposium, 2007, IGARSS2007, Barcelona Spain, July23-28, 2007: 543-546.[2]魏钟铨. 合成孔径雷达. 北京：科学出版社, 2001: 132-152.Wei Zhong-quan. Synthetic Aperture Radar Satellite. Beijing:Publishing House of Science, 2001: 132-152.[3]Fiedler H and Boerner E. Total zero Doppler steeringAnew method for minimizing the Doppler centroid[J].Geoscienceand Sensing Letters.2005, 2(2):141-145[4]Fiedler H.[J].Fritz T, and Kahle R. Verification of the total zeroDoppler steering. Radar2008 International Conference,Rome Italy, September 2-.2008,:-[5]孟云鹤, 尹秋岩, 戴金海. SAR卫星多普勒频移偏航导引补偿效果分析. 中国空间科学技术, 2004, 24(1): 45-48.Meng Yun-he, Yin Qiu-yan, and Dai Jin-hai. Dopplerfrequency shift compensation analysis of SAR satellite yawsteering. Chinese Space Science and Technology, 2004, 24(1):45-48.
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