A new approach to GPS ambiguity decorrelation

Ambiguity decorrelation is a useful technique for rapid integer ambiguity f ixing. It plays an important role in the least-squares ambiguity decorrelat ion adjustment (Lambda) method. An approach to multi-dimension ambiguity de correlation is proposed by the introduction of a new concept: united ambigu ity decorrelation. It is found that united ambiguity decorrelation can prov ide a rapid and effective route to ambiguity decorrelation. An approach to united ambiguity decorrelation, the HL process, is described in detail. The HL process performs very well in high-dimension ambiguity decorrelation te sts.