摘要
在研究GPS信号结构的基础上,给出了GPS射频信号源的设计方案,并分模块进行了设计与实现。实验结果表明,基带/中频模块实现了GPS信号的BPSK调制和扩频调制,输出数字中频信号;射频模块实现了上变频功能,完成了信号的射频调制。
Based on the research about the structure of GPS signal, the design scheme of GPS RF signal source is proposed, and it is designed and implemented with sub - modules. Experiment results show that baseband/IF module realizes BPSK modulation and spread spectrum modulation of GPS signal, and digital IF signal is output. Frequency conversion function is realized in RF module, and the RF modulation of the signal is completed.
出处
《电讯技术》
北大核心
2010年第7期81-85,共5页
Telecommunication Engineering
基金
国家高技术研究发展计划(863计划)项目(2007AA12Z334)~~
关键词
GPS
射频信号源
基带
BPSK
扩频
软件无线电
GPS
RF signal source
baseband
BPSK
spread spectrum
software defined radio （SDR）
