Modified range-Doppler processing for FM-CW synthetic aperture radar

被引：116

作者：

de Wit, JJM ^{[1
]}

Meta, A

Hoogeboom, P

机构：

[1] Netherlands Org Appl Sci Res TNO, NL-2509 JG The Hague, Netherlands

[2] Delft Univ Technol, Int Res Ctr Telecommun Transmiss & Radar, NL-2600 GA Delft, Netherlands

来源：

IEEE GEOSCIENCE AND REMOTE SENSING LETTERS | 2006年 / 3卷 / 01期

关键词：

frequency-modulated continuous-wave (FM-CW) radar; radar Earth observation; remote sensing; synthetic aperture radar (SAR);

D O I：

10.1109/LGRS.2005.856700

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The combination of compact frequency-modulated continuous-wave (FM-CW) technology and high-resolution synthetic aperture radar (SAR) processing techniques should pave the way for the development of a lightweight, cost-effective, high-resolution, airborne imaging radar. Regarding FM-CW SAR signal processing, the motion during the transmission of a sweep and the reception of the corresponding echo were expected to be one of the major problems. In FM-CW SAR, the so-called stop-and-go approximation is no longer valid due to the relatively long sweeps that FM-CW radars transmit. The main effect of the continuous motion is a Doppler frequency shift throughout the SAR observation time. This Doppler frequency shift can be compensated for by modifying the range migration compensation.

引用

页码：83 / 87

页数：5