物理学报Issue(19)：1-9,9.DOI:10.7498/aps.63.198404
基于子带补偿的弹载聚束SAR成像算法
An imaging algorithm for missile-b orne sp otlight SAR based on subband comp ensation
江淮 1汉敏 2赵惠昌 1张淑宁1
作者信息
- 1. 南京理工大学，电子工程与光电技术学院，南京 210094
- 2. 东南大学，毫米波国家重点实验室，南京 210094
- 折叠
摘要
Abstract
The missile-borne synthetic aperture radar (SAR) often use nonlinear scaling algorithm to improve the focusing effect. However, the nonlinear scaling algorithm cannot be used in missile-borne spotlight SAR because of its own limitations. Aiming at this problem, this paper first puts forward a new method named “sub-band compensation” and combineds it to the missile-borne SAR spotlight imaging algorithm. This new algorithm does not introduce the three phases of operation, so the Doppler frequency rate can be effectively compensated under low PRF. Simulation results and analysis show that compared with the nonlinear chirp scaling algorithm, the proposed one has advantages in computation, results obtained, and applicability.关键词
弹载聚束SAR/非线性变标/子带补偿/三维匀加速Key words
missile-borne spotlight SAR/nonlinear chirp scaling/subband compensation/3D acceleration引用本文复制引用
江淮,汉敏,赵惠昌,张淑宁..基于子带补偿的弹载聚束SAR成像算法[J].物理学报,2014,(19):1-9,9.
