%0 Journal Article
%T FPGA-Based Chirp Generator for High Resolution UAV SAR
%A Ming Yam Chua
%A Voon Chet Koo
%J PIER
%@ 1070-4698
%D 2009
%I 
%R 10.2528/PIER09100301
%X This paper discusses the design and development of a FPGA-based chirp generator for high resolution Unmanned Aerial Vehicle (UAV) Synthetic Aperture Radar. The desired bandwidth of the chirp signal is 100 MHz (combination of I and Q channels) with a chirp rate of 5 MHz/¦Ěs. Two algorithms based on the Memory-based architecture and the Direct Digital Synthesizer (DDS) architecture are presented. The measurement results indicate that the DDS chirp generator is a preferred choice for high-resolution SAR application.
%U http://www.jpier.org/pier/pier.php?paper=09100301