An Airborne VideoSAR High-resolution Ground Playback System Based on FPGA
ID:157
Submission ID:75 View Protection:ATTENDEE
Updated Time:2020-08-05 10:17:28 Hits:373
Oral Presentation
Abstract
As a novel SAR imaging mode, the ideal state of VideoSAR system is to perform real-time processing of radar echoes with high frame rate on airborne platform. Compared with previous studies on hardware acceleration processing, this paper makes a further attempt on the implementation of VideoSAR system. An FPGA-based high-resolution ground playback system for airborne VideoSAR including data transmission, imaging, autofocus, geometric distortion correction and display interface is designed in this study. Through the frame-by-frame extraction of radar raw data, which is collected to FLASH during the flight, the process of high-resolution, high frame rate video SAR playback imaging is completed on the ground. It can be verified that the system can convert a frame of 16K?K raw data into 4K?K SAR image within 1 second, and is expected to support onboard real-time processing in the future, which provides a valuable reference for the further development of VideoSAR system.
Keywords
VideoSAR; FPGA; High Frame Rate; System Design; Ground Playback
Submission Author
Chenwei Liu
Nanjing University of Aeronautics and Astronautics, China
Xudong Wang
Nanjing University of Aeronautics, China
Daiyin Zhu
Nanjing University of Aeronautics and Astronautics, China
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