A Digital Dechirp Approach for Synthetic Aperture Radar

Abstract

In this study, a digital dechirp approach for Synthetic Aperture Radar (SAR) is discussed. It can be applied to lightweight MiniSar systems with longer pulse width than swath. With this method, and after data acquisition with lower sampling rate than the bandwidth of the transmitted LFM signal and digital dechirp, pulse compression can be obtained by spectral analysis in the range direction without aliasing. The approach is described in detail and the sampling frequency selection criteria are derived. Theoretical formulations and numerical simulations verify the validity of the proposed approach.

Journal

Title: Journal of Radars

Publisher: Chinese Academy of Sciences

Publication date (Electronic): 01 August 2015

Volume: 4

Issue: 4

Pages: 474-480

Affiliations

[1 ] Institute of Electronics, Chinese Academy of Sciences

Article

Doaj ID: f69d72aa359740a4bc9ae5aadbb975b6

DOI: 10.12000/JR14117

License:

This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

Product

Self URI: http://radars.ie.ac.cn/CN/html/20150413.htm

Self URI (journal page): http://radars.ie.ac.cn/EN/volumn/home.shtml

Categories

Subject: Technology (General)

Subject: T1-995