利用大光斑激光雷达估测小兴安岭平均树高

Estimation of Forest Tree Average Heights from GLAS Data in Lesser Khingan Mountains

研究通过获取覆盖中国黑龙江省小兴安岭的GLAS第三激光器Laser3I数据,并用IDL和MATLAB对GLAS波形数据进行处理来提取树高,利用小兴安岭二类调查数据做精度检验,得到精度为92.67%。结果显示:大光斑激光雷达能够高精度地提取树高,可为林业生产及时提供必要的数据支持。

By getting Laser 3I data of covey Lesser Khingan Mountains in Heilongjiang Provice,and disposing GLAS data with IDL and MATLAB,tree heights were obtained and using the Khingan Mountains two kinds of investigation data accuracy test,the theoretical accuracy was 92. 67%. Result shows that the GLAS data can provide tree height with high precision,which can supply accurate,timely and necessary data for forestry production.