Rapid acquisition of long PN code with large Doppler shift in low SNR environment and its DSP platform
大频移低信噪比下长PN码快速捕获及其DSP实现

According to the Long PN Code with large Doppler shift in Low SNR Environment, an improved method of carrier-frequency and code start-point planar search is proposed. Through cycle shift in frequency space, the transformation between several frequency channels is implemented. Using the code search based on multi-phase structure, the calculation complexity was reduced. The platform device is set up with TMS320C6416, and the simulation result demonstrates that this method has better acquisition performance.