FPGA-BASED CHIRP GENERATOR FOR HIGH RESOLUTION UAV SAR | Zendy

Ming Yam Chua | Zendy; Voon Chet Koo | Zendy

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FPGA-BASED CHIRP GENERATOR FOR HIGH RESOLUTION UAV SAR

Author(s) -

Ming Yam Chua,

Voon Chet Koo

Publication year - 2009

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier09100301

Subject(s) - chirp , field programmable gate array , generator (circuit theory) , computer science , synthetic aperture radar , resolution (logic) , computer hardware , remote sensing , embedded system , geology , artificial intelligence , optics , physics , laser , power (physics) , quantum mechanics

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/μs. 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

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