摘要
给出可配置高速GPS数字中频信号模拟软件的设计方案,该信号模拟器基于x86平台实现,模拟卫星端信号生成、信道传播模型和接收端的混频、采样过程,生成GPS L1数字中频信号,可以作为实地采集信号的替代,为导航接收机的设计验证工作提供便利。和对现有的软件导航信号模拟方案相比,提出的模拟器具有可配置性强、算法效率高、逼真度良好的特点。
Software design scheme of highly-configurable and high-speed GPS IF digital signal generator was proposed. It is implemented on x86 platform and can simulate satellite signal, propagate channel model and receiving condition such as mixing and sampling. The generated GPS L1 signal can take place of actual sampled signal and provide facilities for the design and verification of navigation receiver. Compared with existing ones, the proposed scheme has features of high configuration, high efficiency and high fidelity.
出处
《信息技术》
2012年第5期47-51,54,共6页
Information Technology
基金
上海市北斗导航与位置服务重点实验室项目(11DZ2260100)
关键词
GPS
信号模拟
传播时间逆推
高可配置性
GPS
signal simulator
propagation time reckoning
high configuration
