Qian Liu

Analysis of phase parameter equivalence and combined ambiguity reconstruction in GNSS-IR tide level retrieval

Discrete phase jumps often occur when the Nonlinear Least Squares (NLS) algorithm is adopted to solve phase parameters of the SNR cosine model in GNSS-IR tide level retrieval. This paper analyzes the formation mechanism of phase jumps from the perspective of model parameter equivalence, and proposes a combined ambiguit...