基于信息扩散估计的平面坐标转换研究  

The Plane Similitude Conversion Based on Principle of Information Diffusion

作　　者：朱留洋 陈永涛 ZHU Liu-yang;CHEN Yong-tao(Unit 61206,Beijing 100000,China)

机构地区：[1]61206部队

出　　处：《价值工程》2019年第27期265-267,共3页Value Engineering

摘　　要：基于最小二乘原理进行坐标转换时,若联测点存在粗差,模型转换参数将会受到污染,降低解算精度。针对传统平面转换模型抗差能力弱的不足,本文采用信息扩散原理估计坐标转换参数,建立基于信息扩散原理的坐标转换模型。实例证明,该方法能够有效地抵抗外界粗差的影响,具有一定的可行性。The plane similitude conversion, based on the least square method, is not sensitive to gross error and has worse stabilization.In order to solve this problem, a kind of model based on fuzzy principle of information diffusion is proposed to explore model parameters.The efficiency and feasibility of the method is demonstrated by the example.

关 键 词：平面坐标转换 信息扩散估计 最小二乘 粗差 

分 类 号：P226.3[天文地球—大地测量学与测量工程]