Design of GPU Based Non-coherent Signal Tracking Module for Real-time GNSS SDR

Jong-Il Park, Kwi Woo Park, Chansik Park, D.D. Wijaya
2019 E3S Web of Conferences  
In this paper, we design and implement GPU-based non-coherent GPS signal tracking module for real-time SDR. When using CPU and GPU simultaneously, the signal tracking module should be designed considering the memory bottleneck between the two processors. The basic non-coherent module, which accumulates the 1msec correlation value 20 times, is changed to accumulate M(20/N) times of Nmsec units. From the experiments using real GPS signals, the computational performance of N=20 is improved by 80%
more » ... is improved by 80% compared to N=1. Therefore, the implemented SDR using notebook computer can tracks more channels simultaneously in the real time.
doi:10.1051/e3sconf/20199403013 fatcat:onttbj6zzfc3jnljv2knix2use