▍1. GNSS
单点定位就是根据一台接收机的观测数据来确定接收机位置的方式,它只能采用伪距观测量,可用于车船等的概略导航定位。(Single point positioning is based on observations of a receiver to determine the position of the receiver way, it only can use the false distance measurements, can be used to approximate the travel and other navigation and positioning)