Performance Analysis and Image Processing of Phase-modulated Signal on Airborne Synthetic Aperture Ladar
Du Jian-bo①②③ Li Dao-jing①② Ma Meng①②③
①(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China) ②(Science and Technology on Microwave Imaging Laboratory, Beijing 100190, China) ③(University of Chinese Academy of Sciences, Beijing 100049, China)
Abstract：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.
杜剑波, 李道京, 马 萌. 机载合成孔径激光雷达相位调制信号性能分析和成像处理[J]. 雷达学报, 2014, 3(1): 111-118.
Du Jian-bo, Li Dao-jing, Ma Meng. Performance Analysis and Image Processing of Phase-modulated Signal on Airborne Synthetic Aperture Ladar. JOURNAL OF RADARS, 2014, 3(1): 111-118.
