An open source software-defined IF signal simulator for GPS receivers

Author

Yafeng Li

E-Mail: lyf8118@126.com; QQ: 317886245

Features

This simulator is implemented in MATLAB to leverage easy-to-use feature of the interpreted language. The IF signal generation is driven by user-specified trajectory and real ephemeris data from IGS Rinex files. Configurable parameters are provided to set the characteristics of the IF samples, C⁄No, and front-end filter. The power spectral density and time-domain histogram of the generated IF signals are presented. The signals are further analysed and validated by a real software receiver. The results show the outputs of the receiver fit well with the configurations of the simulator. We expect this open-source simulator can offer researchers, students, and developers a useful tool for developing innovative algorithms with almost zero cost.