这是GNSS出品的一个用来下载RTCM格式的语句到GPS接收器的辅助定位的工具，Linux下源码

This paper deals with using of low-cost Global Navigation Satellite System (GNSS) sensors in a localization process for an autonomous guidance system of mobile robots. Generally, this process is made using a Kalman Filter (KF) to fuse informa

更改版本，能够接受gps,glonass,beidou的实时数据流-Able to accept real-time data streams gnss

We want to send SV info to ULP to help it in determining GNSS signal strength ULP will forward the SV reports to HAL without any modifications. -We want to send SV info to ULP to help it in determining GNSS signal strength ULP will forward the SV