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电离层闪烁对星载P波段SAR的影响分析

冯健 甄卫民 吴振森 刘钝

冯健, 甄卫民, 吴振森, 刘钝. 电离层闪烁对星载P波段SAR的影响分析[J]. 电子与信息学报, 2015, 37(6): 1443-1449. doi: 10.11999/JEIT140948
引用本文: 冯健, 甄卫民, 吴振森, 刘钝. 电离层闪烁对星载P波段SAR的影响分析[J]. 电子与信息学报, 2015, 37(6): 1443-1449. doi: 10.11999/JEIT140948
Feng Jian, Zhen Wei-min, Wu Zhen-sen, Liu Dun. Effects of Ionospheric Scintillation on P Band Spaceborne SAR[J]. Journal of Electronics & Information Technology, 2015, 37(6): 1443-1449. doi: 10.11999/JEIT140948
Citation: Feng Jian, Zhen Wei-min, Wu Zhen-sen, Liu Dun. Effects of Ionospheric Scintillation on P Band Spaceborne SAR[J]. Journal of Electronics & Information Technology, 2015, 37(6): 1443-1449. doi: 10.11999/JEIT140948

电离层闪烁对星载P波段SAR的影响分析

doi: 10.11999/JEIT140948
基金项目: 

国家国际科技合作专项(2011DFA22270)资助课题

Effects of Ionospheric Scintillation on P Band Spaceborne SAR

  • 摘要: 电离层闪烁会破坏星载合成孔径雷达(SAR)回波信号之间的相关性,使其成像性能下降。已有的工作都是假设已知电离层电子密度的扰动开展的,但是目前的测量手段无法直接获取该参量。该文利用海口观测站超高频(UHF)频段太阳活动高年和中等年份的实测数据,分析电离层闪烁的变化特征,并基于相位屏理论,给出一种利用闪烁指数评估电离层闪烁对星载P波段SAR系统影响效应的方法。结果表明:电离层闪烁在低纬地区主要发生在夜间,且在两分季高发;太阳活动高年,全年约有3.8%的时间会发生电离层闪烁现象;对于P波段SAR系统来说,弱闪烁使得方位向冲激响应函数(IRF)的主瓣宽度和副瓣增益增大,分辨率下降;中等强度闪烁使得方位向冲激响应函数发生严重的扰动,副瓣增益增大到主瓣的水平,主瓣中心也发生平移,可能使得系统无法直接成像。
  • 邓云凯, 赵凤军, 王宇. 星载SAR技术的发展趋势及应用浅析[J].雷达学报, 2012, 1(1): 1-10.
    Deng Yun-kai, Zhao Feng-jun, and Wang Yu. Brief analysis on the development and application of spaceborne SAR[J]. Journal of Radars, 2012, 1(1): 1-10.
    Rignot E, Zimmermann J R, and Vanzyl J J. Spaceborne applications of P-band imaging radars for measuring forest biomass[J]. IEEE Transactions on Geoscience and Remote Sensing, 1995, 33(5): 1162-1169.
    Ishimaru A, Kuga, Y, Liu J, et al.. Ionospheric effects on synthetic aperture radar at 100 MHz to 2 GHz[J]. Radio Science, 1999, 34(1): 257-268.
    刘传保. 电离层对雷达测量精度的影响及校正方法研究[J]. 航天电子对抗, 2013, 29(2): 47-53.
    Liu Chuan-bao. The effects of ionosphere to radar measurement precision and the correction methods[J]. Aerospace Electronic Warfare, 2013, 29(2): 47-53.
    Emardson R, Jarlemark P, Johansson J, et al.. Spatial variability in the ionosphere measured with GNSS networks[J]. Radio Science, 2013, 48(5): 646-652.
    McNamara L F, Caton R G, Parris R T, et al.. Sinnatures of equatorial plasma bubbles in VHF satellite scitillations and equatorial ionograms[J]. Radio Science, 2013, 48(2): 89-101.
    Franke S J, Liu C H, and Fang D J. Mulrifrequency study of ionospheric scintillation at Ascension island[J]. Radio Science, 1984, 19(3): 695-706.
    Quegan S and Lamont J. Ionospheric and tropospheric effects on synthetic aperture radar performance[J]. International Journal of Remote Sensing, 1986, 7(4): 525-539.
    Rogers N C and Quegan S. Simulation of ionospheric effects and their mitigation for the ESA BIOMASS P-band space-based radar[C]. Proceedings of the Ionospheric Effects Symposium, Alexandria, VA, USA, 2011: 13A3-1-13A3-8.
    Tsynkov S V. On SAR imaging through the earths ionosphere[J]. SIAM Journal on Imaging Sciences, 2009, 2(1): 140-182.
    Gilman M, Smith E, and Tsynkov S V. Reduction of ionospheric distortions for spaceborne synthetic aperture radar with the help of image registration[J]. Inverse Problems, 2013, 29(5): 054005(1-35).
    Xu Z W, Wu J, and Wu Z S. Potential effects of the ionosphere on space-based SAR imaging[J]. IEEE Transactions on Antennas and Propagation, 2008, 56(7): 1968-1975.
    郑虎, 李廉林, 李芳. 电离层对星载合成孔径雷达方位向分辨率影响的分析[J]. 电子与信息学报, 2008, 30(9): 2085-2088.
    Zheng Hu, Li Lian-lin, and Li Fang. Study about ionospheric effects on spaceborne SAR azimuth imaging[J]. Journal of Electronics Information Technology, 2008, 30(9): 2085-2088.
    李力, 杨淋, 张永胜, 等. 电离层不规则体对P波段星载SAR成像的影响[J]. 国防科技大学学报, 2013, 35(5): 158-162.
    Li Li, Yang Lin, Zhang Yong-sheng, et al.. Effects of ionospheric irregularities on spaceborne P band SAR imaging [J]. Journal of National University of Defense Technology, 2013, 35(5): 158-162.
    李亮, 洪峻, 明峰, 等. 电离层时空变化对中高轨SAR成像质量的影响分析[J]. 电子与信息学报, 2014, 36(4): 915-922.
    Li Liang, Hong Jun, Ming Feng, et al.. Study of ionospheric effects induced by spatio-temporal variability on medium-earth-orbit SAR imaging quality[J]. Journal of Electronics Information Technology, 2014, 36(4): 915-922.
    Ngwira C M, Klenzing J, Olwendo J, et al.. A study of intense ionospheric scintillation observed during a quiet day in the East African low-latitude region[J]. Radio Science, 2013, 48(4): 396-405.
    Rino C L. A power law phase screen model for ionospheric scintillation: 1. Weak scatter[J]. Radio Science, 1979, 14(6): 1135-1145.
    Aarons J. Global morphology of ionospheric scintillations[J]. Proceedings of the IEEE, 1982, 70(4):360-378.
    甄卫民, 冯健, 陈丽, 等. 多站多路径GPS信号研究低纬电离层不均匀体[J]. 电波科学学报, 2007, 22(1): 138-142.
    Zhen Wei-min, Feng Jian, Chen Li, et al.. Investigation of low-latitude ionospheric irregularities by using multi-station GPS multi-link signals[J]. Chinese Journal of Radio Science, 2007, 22(1): 138-142.
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  • 被引次数: 0
出版历程
  • 收稿日期:  2014-07-17
  • 修回日期:  2014-11-05
  • 刊出日期:  2015-06-19

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