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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Li Yueli Yan Shaoshi Zhu Guofu Li Jiangyang Zhou Zhimin |
| Copyright Year | 2011 |
| Description | Author affiliation: School of Electronic Science and Engineering, National University of Defense Technology, Chang'sha, China (Li Yueli; Yan Shaoshi; Zhu Guofu; Li Jiangyang; Zhou Zhimin) |
| Abstract | The low frequency ultra wide band (UWB) synthetic aperture radar (SAR) is famous for its wide integration angle, which lead to a large memory capacity requirement to several gigabytes. In this paper, the base parameters of the airborne UWB SAR real time processor are analyzed. Then a modified sub-aperture and sub-band nonlinear chirp scaling (NCS) algorithm is used to divide the SAR signal processing into pipelined parallel steps. To improve the image quality, motion compensation (MoCo) and radio frequency interference (RFI) suppression are introduced in real time processing. Using a distributed-memory structure, the design and implementation based on digital signal processors (DSPs) are proposed finally. The results of the flight experiment on a “Y12” airplane show that the demanded image quality can be obtained by using real time processing. |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 586314 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781457713514 |
| e-ISBN | 9788993246179 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-09-26 |
| Publisher Place | Korea (South) |
| Access Restriction | Subscribed |
| Rights Holder | KIEES |
| Subject Keyword | Real time systems nonlinear chirp scaling Azimuth ultra wide band real time imaging sub-apreture algorithm Imaging Digital signal processing Radar imaging Apertures |
| Content Type | Text |
| Resource Type | Article |
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