通常GPS定位信息接收系统主要由GPS接收天线、变频器、信号通道、微处理器、存储器以及电源等部分组成。由于GPS定位信息内容较少，因此多用RS-232串口将定位信息（NEMA0183语句）从GPS接收机传送到计算机中进行信息提取处理。-GPS location information is usually received by the GPS receiver system antenna, frequency converter, signal channel, microprocessor

GPS 转换板图,用PROTEL99SE打开-GPS converter board map, with open PROTEL99SE

读取GPS Rinex格式的数据，带有测试数据-read the GPS rinex data

In order to start using GNSS-SDR, you may want to populate ```gnss-sdr/data``` folder (or anywhere else on your system) with raw data files. By raw data we mean the output of a Radio Frequency front-end s Analog-to-Digital converter. GNSS-SDR needs s