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你一定遭遇过信号微弱GPS无法导航的窘境,只能等待离开当前路段重新获取信号后再次连接,而这个过程中你可能已经走错了路。为了精确定位汽车位置从而计算路线,GPS系统需要连续不断地接受卫星网络传来的信号。在空旷地带,这个没有问题,但在高楼林立的市区,倘若卫星信号
You must have encountered the weak GPS signal can not navigate the dilemma, can only wait to leave the current section to regain access to the signal again, and in the process you may have been the wrong way. In order to accurately locate the location of the car to calculate the route, GPS systems need to continuously receive signals from the satellite network. In the open area, this is no problem, but in the high-rise urban areas, if the satellite signal