A whitening filter-based LAMBDA group searching method

When using GPS carrier phase differential technique for dynamic positioning, the traditional LAMBDA (Least-squares AMBiguity Decorrelation Adjustment) has shortcomings in the existence of iteration, long solving time and large amount of calculation for decorrelation processing. Based on the rapid ambiguity resolution method, combined with feature of Whitening Filter algorithm, a LAMBDA group searching method, based on the Whitening Filter, is proposed. Simulation results show that the method reduces the required time of the ambiguity determining, and effectively improves the calculation efficiency and positioning accuracy.