兼容GPS/Galileo系统单频接收机的研究

Research of Combined GPS/Galileo SF Receiver

为了提高全球定位系统接收机定位精度的可靠性,研究了一种基于Xilinx公司的FPGA和Intel公司奔腾处理器的民用接收机.该接收机可以接收处理GPS/Galileo两个系统L1频段内所有民用信号,这样即使Intel公司GPS的粗码信号受到人为或者其它因素的干扰,接收机也能接收到来自Galileo系统的开放信号来保证用户的定位精度,而不至于影响用户的使用.结果表明,兼容两个系统的接收机不仅能提高用户定位精度的可靠性,而且有广泛的民用市场.

To improve the reliability of GPS receiver position precision, a new civil receiver was studied, which is based on FPGA produced by Xilinx company and Intel Pentium processor. It could receive and process all civil signals from GPS and Galileo system transmitted on L1 frequency band. Even if GPS sig- nal was interfered by jamming or other signals, the receiver could also receive the open signal from Galileo system and guarantee the user＇s position precision. Therefore, the receiver combined GPS/ Galileo can not only enhance the reliability of user＇s position precision, but also has wider civil market.