MULTI-CHANNEL SPCMB-TOPS SAR FOR HIGH-RESOLUTION WIDE-SWATH IMAGING | Zendy

Wei Xu | Zendy; Pingping Huang | Zendy; Yunkai Deng | Zendy

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MULTI-CHANNEL SPCMB-TOPS SAR FOR HIGH-RESOLUTION WIDE-SWATH IMAGING

Author(s) -

Wei Xu,

Pingping Huang,

Yunkai Deng

Publication year - 2011

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/pier11030603

Subject(s) - tops , azimuth , aliasing , synthetic aperture radar , computer science , remote sensing , channel (broadcasting) , radar imaging , terrain , image resolution , geology , optics , computer vision , radar , telecommunications , filter (signal processing) , physics , geography , cartography

To improve the impaired azimuth resolution of the novel Terrain Observation by Progressive Scans (TOPS) mode, a new multichannel single phase center multiple beam (SPCMB) TOPS mode is proposed in this paper for high-resolution wide-swath (HRWS) imaging. However, the progressive azimuth beam scanning leads to the Doppler spectrum aliasing and both beam center time and Doppler centroid varying with the target's azimuth location. Challenges may arise for processing the SPCMB-TOPS SAR data from these problems. In this paper, an efficient full aperture imaging approach is proposed to process the raw data. The sketch of the proposed imaging approach is described in detail. Simulation results of point targets validate the proposed imaging approach.

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