| 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。 |
| 关键词: GPS 射频信号源 基带 BPSK 扩频 软件无线电 |
| DOI： |
|
| 基金项目:国家高技术研究发展计划（863计划）项目（2007AA12Z334） |
|
|
| ZHAN Guang,XU Fei,DUAN Xiao-hui,ZHOU Rui |
| (Department of Electronics,School of Electronics Engineering and Computer Science,Beijing University,Beijing 100871,China;Department of Aviation Electronical Engineering, Aviation University of Air Force, Changchun 130022,China) |
| Abstract: |
| 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 su
b-modules. Experiment results show that baseband/IF module realizes BPSK modulat
ion and spread spectrum modulation of GPS signal, and digital IF signal is outpu
t. Frequency conversion function is realized in RF module, and the RF modulat
ion of the signal is completed. |
| Key words: GPS RF signal source baseband BPSK spread spectrum software defined radio(SDR
) |
