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Performance Analysis and Image Processing of Phase-modulated Signal on Airborne Synthetic Aperture Ladar

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      In this study, the performance of three phase-modulated signals used in airborne Synthetic Aperture Ladar (SAL) is investigated. The transmitting and receiving modes and imaging processing methods for these signals are studied. Considering that the swath of the airborne SAL is very narrow, in order to reduce the AD sampling rate of the wideband signal, a “phase-dechirping” receiving mode is proposed for the phase-modulated signal based on the Linear Frequency Modulation (LFM) signal. The imaging simulation results for these three phase-modulated signals validate the effectiveness of the proposed method.

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      [1 ] Institute of Electronics, Chinese Academy of Sciences
      Journal of Radars
      Chinese Academy of Sciences
      01 February 2014
      : 3
      : 1
      : 111-118
      6f588a7e4a3447deb869ee81ed48860d 10.3724/SP.J.1300.2014.13094

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