TY - GEN AU - Yang,Wenhao AU - Liu,Yue AU - Liu,Fanming TI - An Improved Ambiguity-Free Method for Precise GNSS Positioning with Utilizing Single Frequency Receivers SN - 1424-8220 PY - 2020/// PB - Sensors (Basel, Switzerland) N1 - Publication Type: Journal Article UR - https://doi.org/10.3390/s20030856 ER -