空间前方交会中外方位元素误差对测量立木高度的影响  

Error Effect of Exterior Orientation Elements on Tree Height Measurement Using Space Intersection Theory

作　　者：智长贵[1] 范文义[2] 

机构地区：[1]国家林业局调查规划设计院,北京100714 [2]东北林业大学

出　　处：《东北林业大学学报》2007年第6期86-87,91,共3页Journal of Northeast Forestry University

基　　金：黑龙江省科技攻关课题(GC02B608)

摘　　要：从理论上推导了外方位元素包含误差的情况下,利用空间前方交会法对测量树高的影响,并对影响树高测量精度的外方位元素误差进行了实践检证。结果表明,外方位元素在一定误差范围内,利用空间前方交会理论测量树高,精度较高。A study was conducted to deduce the error effect of exterior orientation elements on tree height measurement according to the theory of space intersection. The error of exterior orientation elements influencing the precision of height measurement was checked by practice. Result shows that the precision of height measurement by the theory of space intersection is relatively high within a given range of error.

关 键 词：空间前方交会 外方位元素 树高测量 

分 类 号：S771[农业科学—森林工程]