摘要
本文主要讨论高灵敏度卫星导航接收机的组成和概要设计。分析了数字电路设计中常遇到的信号完整性问题。着重对传输线阻抗和串扰效应进行了理论分析,运用Cadence公司的ALLEGRO PCB SI GXL软件给出了层叠等的设置方法和一些重要信号的分析仿真。将高速数字设计的理论分析与实际应用相结合,在卫星定位接收机主板设计中得到验证。
This Article is introduced about the combination and design of high sensitivity satellite navigation receiver. Signal integrity problems in the developments of digital circuit design; perform theoretical analysis to transmission line impedance and the crosstalk effect. Implement ALLEGRO PCB SI GXL by Company Cadence to provide establishment of ovedap and some important signal＇s artificial analysis. Combined theoretical analysis of high-speed digital design and practice, will verified in satellite positioning receiver board design.
基金
<高灵敏度卫星导航接收机IP及原形系统的开发>(上海市科委登山行动)(XM0602)
高灵敏度双模卫星导航接收机及芯片技术(YB0602-3)(国家863计划)
卫星导航接收机关键技术研究(上海市科委创新团队)(XM0604)
关键词
卫星定位接收机
高速数字设计
信号完整性
阻抗匹配
仿真
Satellite position receiver
High-Speed digital design
Signal Integrity
Impedance matching
Emulation
