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星载合成孔径雷达多普勒调频斜率的时频估计方法 被引量:2

Estimating Spaceborne SAR Doppler Rate with Time Frequency Distributions (received Apr.22, 1998, revised Aug.31)
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摘要 分析了星载合成孔径雷达(SAR)回波的时频特性,提出了利用Vile-Moyal分布估计星载SAR多普勒调频斜率的方法。处理ERS-1实测数据的结果表明,其结果优于目前常用的子孔径相关方法。 The property of the time frequency distribution of SAR echoes is investigated and a new method of Doppler rate estimation based on Ville Moyal distribution is presented. The results of the Doppler parameters estimation of ERS 1 raw data show that the mothed can give more accurate estimation than the subaperture correlation method.
出处 《高技术通讯》 EI CAS CSCD 1998年第12期45-49,共5页 Chinese High Technology Letters
基金 航天工业总公司预研项目
关键词 合成孔径雷达 多普勒调频斜率 SAR系统 星载 Synthetic aperture radar, Doppler rate estimation, Time frequency distribution
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