The technology of pulse repetition frequency variation for geosynchronous orbit SAR with staring imaging

被引：1
作者：
Li C.-P. [1 ,2 ]
He M.-Y. [1 ]
机构：
[1] School of Electrical and Information, Northwestern Polytechnic University, Xi'an
[2] China Academy of Space Technology (Xi'an), Xi'an
来源：
| 1600年 / Univ. of Electronic Science and Technology of China卷 / 45期
关键词：
Geosynchronous orbit SAR; Imaging quality effect; PRF variation; Pulse lost positions;
D O I：
10.3969/j.issn.1001-0548.2016.06.007
中图分类号：
学科分类号：
摘要：
The staring observation of a certain region for geosynchronous orbit synthetic aperture radar (GEO SAR) is very important application. Due to the big SAR echo range migration in staring imaging which makes the signal reception window be difficult to choose, a pulse repetition frequency (PRF) variation method for geosynchronous orbit staring imaging is put forward. Firstly, the design criterion of pulse repetition frequency variation is given, and then both of the location of the missing pulse and the influence on imaging quality owing to pulse repetition frequency (PRF) variation are deduced in detail. The back projection (BP) algorithm is adapted to non-uniform sampling signal imaging focusing. Finally, the simulation is used to verify the effectiveness of the PRF variation. Numerical simulations have demonstrated the effectiveness of the approach proposed. © 2016, Editorial Board of Journal of the University of Electronic Science and Technology of China. All right reserved.
引用
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页码：917 / 922
页数：5
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