摘要
给出了机载激光扫描测高系统中多次回波产生的原理,分析了多次回波发生的条件与探测方法,论述了机载激光扫描测高多次回波信息在森林地区数据滤波中的具体应用,并利用实测数据对该方法进行了验证,说明了此方法的可行性。
The principle of multiple echoes production is introduced,and the condition of multiple echoes happened is presented with the method for detection of multiple echoes.Some material applications of multiple echoes in the processing of forested data are developed.Before applying some filtering method,the data is firstly processed by removing the multiple echoes data which can increase the proportion of the ground points in the points set.After removing multiple echoes data,the filtering result is better than no-removing multiple echoes in the same condition.A real example is used to validate this method.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2007年第9期778-781,共4页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(40504001)
武汉大学测绘遥感信息工程国家重点实验室开放研究基金资助项目(重点项目子项目1)
关键词
机载激光扫描测高
回波探测
滤波
airborne laser scanning system
multiple echoes detection
filtering
