satnav

剑桥词典

abbreviation for satellite navigation : a system of computers and satellites , used in cars and other places that tell you where something is, where you are, or how to get to a place
卫星导航，卫星定位（satellite navigation的缩写）
Many cars are now fitted with satnav. 现在许多小车都配置有卫星导航装置。
同义词
GPS 返回 satnav