最小二乘法在航海电子绘算中的应用

Application Of Weighted Least Square Estimates In Navigation Chat Work

依据目前电子海图应用系统在航海实践中所存在的不足,笔者提出了电子绘算的概念,依据三标方位定位的实际做法,构建和运用加权最小二乘法对船位进行估计.Matlab模拟计算表明:加权最小二乘法对三标方位定位的适用性和局限性,为航海电子绘算进行了前期的准备工作.

Due to the shortcoming of electronic chart displaying and information system in navigation practice,a kind of electrical chart work is put forward in this article. The method of weighted least square estimates （WLSE） is modeled and demonstrated to be used in fixing by cross bearings. Matlab simulation calculation shows that some weakness should be noticed to benefit the hope that navigation chart work can be done on electronic chart displaying and information system.