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研究了一种多星座混合GPS、GLONASS和北斗二代的接收系统,同时接收多个星座的卫星信号进行导航处理,避免了单一星座的不足和安全漏洞。利用FPGA和DSP结合搭建一个实验平台,满足卫星信号的快速捕获和高动态的要求,为基带处理和导航解算软件提供了运行环境和硬件支持,最大限度地使用了硬件资源。最后通过对实验平台的验证,系统性能满足要求。
A multi-constellation hybrid GPS, GLONASS and Beidou second-generation receiver system is studied. At the same time, a plurality of constellation satellite signals are received for navigation processing, which avoids the disadvantages of single constellation and security loopholes. By using FPGA and DSP, an experimental platform is set up to meet the requirements of fast satellite signal acquisition and high dynamic. It provides the operating environment and hardware support for the baseband processing and navigation software and maximizes the use of hardware resources. Finally, through the verification of the experimental platform, the system performance meets the requirements.