RMA imaging algorithm based on NUFFT’s

Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (17): 32-33.

• 学术探讨 • Previous Articles Next Articles

RMA imaging algorithm based on NUFFT’s

ZHANG Zhi-yu，RONG Zhu

Institute of Automation & Information Engineering，Xi’an University of Technology，Xi’an 710048，China

Received:1900-01-01 Revised:1900-01-01 Online:2007-06-11 Published:2007-06-11
Contact: ZHANG Zhi-yu

基于非均匀FFT的距离徙动算法

张志禹，荣柱

西安理工大学自动化与信息工程学院，西安 710048

通讯作者: 张志禹

Abstract

Abstract: Range Migration Algorithm（RMA） must include the so-called Stolt interpolation，which will cause the huge amount of calculation，restrict it applied foreground in SAR imaging.In this work，NUFFT will be applied in RMA，our approach consists in substituting both the Stolt interpolation and the final range inverse FFT by a single NUFFT，wipe off vast calculation arise from Stolt interpolation.Numerical simulations illustrate the performance of the new method.

Key words: Synthetic Aperture Radar（SAR）, Range migration Algorithm（RMA）, NUFFT, imaging

摘要： 距离徙动算法（RMA）由于需要进行精确的插值，限制了它在SAR成像中的应用。将非均匀快速傅立叶变换（NUFFT）应用到RMA成像算法中，将Stolt插值和距离向的IFFT用NUFFT来替换，在保证成像质量的情况下，提高了成像的效率，仿真结果证明了该算法的有效性。

关键词: 合成孔径雷达, 距离徙动算法, 非均匀快速傅立叶变换, 成像

ZHANG Zhi-yu，RONG Zhu. RMA imaging algorithm based on NUFFT’s[J]. Computer Engineering and Applications, 2007, 43(17): 32-33.

张志禹，荣柱. 基于非均匀FFT的距离徙动算法[J]. 计算机工程与应用, 2007, 43(17): 32-33.

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RMA imaging algorithm based on NUFFT’s

基于非均匀FFT的距离徙动算法

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