paper 150204065106

Published: 2015-07-09

Parallel Imaging Based on Multicore DSP for FMCW SAR

Wenge Chang,

Wenge Chang

National University of Defense Technology, China

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Chengfei Gu,

Chengfei Gu

National University of Defense Technology, China

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Xiangyang Li

National University of Defense Technology, China

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Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)1053-1057

Abstract

A Ku-band FMCW SAR system is demonstrated which has the capability of real- time processing with the application of single high-performance multi-core DSP. The navigational data of platform movement, which particularly used for high precision motion compensation, is accurately measured by GPS and accelerometer. Furthermore, to realize the real-time processing, the parallel processing approach based on multicore DSP is presented in detail, also the time consumptions of key steps are minutely listed. To verify the capability of real-time processing, several automobile experiments are campaigned with the FMCW SAR sensor on the top of the car. The obtained results of real-time processing and post-processing are presented and compared, processed with 35 cm and 25 cm resolution, respectively.

Citation

Wenge Chang, Chengfei Gu, and Xiangyang Li, "Parallel Imaging Based on Multicore DSP for FMCW SAR," Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)1053-1057

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