A Modified Inverse Integer Cholesky Algorithm for GPS Ambiguity Decorrelation
Yang Jian · Hydrographic Surveying and Charting · 2010
Based on illustrating the principle of inverse integer Cholesky algorithm,a modified algorithm which adopted the minimum condition number as a rule to terminate iteration and exchanged the diagonal entries of variance-covariance matrix with sort ascending was presented.The two algorithms were compared by numerical simulation with the rules of condition number and mean correlation coefficient.The results showed a more decline of condition number and correlation coefficient could be obtained with the modified algorithm.