一种灵活的导航接收机前端电路设计  

A new navigation receiver front-end circuit design

作　　者：潘振翮[1] 袁洪[2] 林宝军[2] 

机构地区：[1]中国科学院研究生院,北京100080 [2]中国科学院光电研究院,北京100080

出　　处：《微计算机信息》2008年第8期273-274,272,共3页Control & Automation

摘　　要：世界上的卫星导航信号资源正不断得到完善和丰富,另外过去针对GPSC/A码的卫星导航接收机已经越来越不能满足实际需求了,这就使得发展多频多系统的卫星导航接收机变得可能而且必要了。但是,由于目前还没有合适的针对多频多系统的卫星导航接收机专用集成电路;因此作者利用市面上已有成熟的通用集成芯片,设计了一种能够兼容多种频率和多种系统的卫星导航接收机前端电路。针对不同的卫星导航信号,该前端电路的频率和信道带宽都可以容易地更改。The satellite-navigation signal resource on the earth is being upgraded and becoming enriched ceaselessly。In addition, the GPS C/A code receivers are becoming increasingly unable to satisfy the practical requirements 。This make it possible and necessary to develop the multi-frequency and multi-system satellite-navigation receivers 。But,a special ASIC for multi-frequency and multi-system satellite-navigation receiver is not available at present。The authors have designed a satellite-navigation receiver front-...

关 键 词：前端电路 导航接收机 多频多系统 直接下变频 

分 类 号：TN965[电子电信—信号与信息处理]