Novel lidar acquisition processing method, insensitive to photon overlapping at detection of fast, highly dynamic backscattered signals

摘要

A novel method for acquisition and preprocessing of intensive, highly dynamic lidar signals has been developed and tested with computer simulations. The method is based on the time-resolved counting of photon streams by convolving of photoevents into decayed oscillations, linear analog to digital sampling and deconvolution. It is effective simultaneously in analog, overlapped and photon counting regimes, saving the dynamics and the temporal resolution of lidar data for more than four orders (10~4) of the illumination magnitude.