摘要
对GPS射频前端进行了研究与设计,实现了GPS信号射频到数字中频的转化过程。应用GP2010芯片设计出了符合要求的GPS射频前端,包括前端滤波器、低噪声放大器,以及中频滤波器。介绍测试系统的搭建,对实际制作的电路板进行调试,并得出测试结果,为后期基于FPGA实现GPS基带数字信号处理提供GPS数字中频信号,为自主设计GPS接收机奠定了基础。
The GPS RF front end is studied to provide a basis for the research of GPS baseband digital signal processing. The desirable GPS RF front-end is designed by using GP2010 chip, which includes front-end filter, low noise amplifier and IF filter. The construction of the test system is proposed, the circuit board is debugged and the test results are gained. The design can provide digital IF GPS signals for the GPS baseband digital signal processing, and establish a foundation for the independent design of GPS receiver .
出处
《现代电子技术》
2011年第1期101-103,共3页
Modern Electronics Technique
基金
2009年福建省自然科学基金重点资助项目(2009H0028):<宽带自适应线性射频功率放大器的研究>
