信息滤波在控制网平差中的应用

依据相关分期平差原理,采用带权位置约束的“P_x平差”方法,初步解决了大地或工程控制网加密或扩建中存在的一系列问题。证明了一切基于最小二乘的平差方案是P_x平差的特殊情况。本文提出的平差方法与精度评定均由专用的计算机程序完成。所介绍的理论和方法可用于广泛存在的控制网加密及扩建的生产实际。

APPLICATION OF INFORMATION FILTERS IN ADJUSTMENT OF SURVEY CONTROL NETWORK

Px adjustment with weighted position constraint is applied to solving a series of problems in the bridging and extension of geodesic engineering survey control network. It is also proved that an adjustment program based on the method of least squares is only a special case of the Px adjustment. The adjustment method and accuracy evaluation are accomplished by special computer programs. The theory and method discussed in this article can be applied to surveying practice.