An Analysis of Performance of the Airborne Laser Scanning Rangefinder
机载激光扫描测距仪的性能分析

A method for quantitative evaluation and qualitative analysis to the performance such as detected backscattering signal, optical background noise and signal-to-noise ratio(SNR) of the airborne laser scanning rangefinder is proposed. The problems such as the relations between SNR and detected signal, background noise and detected range are discussed. The ratio of threshold-to-noise for constant probability of false alarm is also given. All of these can be used as a scientific basis for the use in the fields of remote sensing as well as surveying and for the improvement of airborne laser scanning ranging system, the analysis method can be generalized for different airborne or satellite carried laser scanning rangefinder.