一种改进的白化滤波求解模糊度算法

在仔细分析经典模糊度快速解算方法的基础上，结合白化滤波和LAMBDA方法的优点，提出了一种改进的白化滤波方法.该算法首先对整周模糊度及其协方差阵进行整数白化滤波处理，求得模糊度初值，进而结合LAMBDA方法中的条件最小二乘搜索技术对模糊度进行搜索，最后根据Ratio值，来确定整周模糊度最优解.概述了改进的白化滤波算法的数学模型，通过算例验证了本方法的可行性和有效性.

An improved Whitening Filter algorithm for GPS ambiguity resolution

Based on the traditional rapid ambiguity resolution methods, an improved Whitening Filter algorithm was presented that combined with the advantages of Whitening Filter and LAMBDA method.This improved algorithm use whitening-algorithm to decorrelate the ambiguities and their variance-covariance matrix, then employ conditional least square search method used in LAMBDA method to search correct ambiguities and determine the best solution of ambiguity with the help of Ratio value.Discussed the mathematical model of improved Whitening Filter algorithm, a numerical example was given to illustrate the feasibility and efficiency of new method.