A method of 3D map inversion using smart phone GNSS signal-to-noise ratio
JIANG Xinwei, WANG Shitai, YANG Shini, YIN Min, ZHOU Guoqing, ZHANG Boyu, MA Yue
Bulletin of Surveying and Mapping . 2022, (11): 49 -56 .  DOI: 10.13474/j.cnki.11-2246.2022.0324