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http://dx.doi.org/10.5139/JKSAS.2022.50.2.119

Design and Implementation of CTM for SAR Payload  

Kim, Dong-Sik (LIG NEX1)
Kim, Hyun-Chul (LIG NEX1)
Yu, Kyung-deok (LIG NEX1)
Heo, John (LIG NEX1)
Woo, Jae-Choon (LIG NEX1)
Lee, Sang-Gyu (Korea Aerospace Research Institute)
Lee, Hyeon-Cheol (Korea Aerospace Research Institute)
Ryu, Sang-Burm (Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.50, no.2, 2022 , pp. 119-125 More about this Journal
Abstract
In this paper, we present design, implementation and test results of CTM (Chirp Transceiver Module) EM (Engineering Model) for C-Band SAR (Synthetic Aperture Radar) Payload. The CTM is designed to operate dual frequency scan method that simultaneously operate two frequencies in each 50MHz bandwidth to achieve 120Km swath with 10m resolution at about 500Km altitude. The CTM used radiation tolerant RTG4 FPGA for space environment, and implemented with the Parallel DDS (PDDS) method which uses a small memory capacity compared to the memory-map method. Test results show high purity chirp signal generation and excellent IRF performance from received chirp signal after direct digital conversion.
Keywords
CTM; EM; SAR; PDDS;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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