Profiling of a satellite signal acquisition algorithm inside the GNSS-SDR framework

Abstract

The Parallel Code Phase Search (PCPS) is an algorithm that is part of one of the stages in positioning calculation within a Global Navigation Satellite System (GNSS) receiver. Its main function is to detect visible satellites and provide an estimate of the signal frequency shift and the code delay of the satellite signals. This information is necessary for the calculation of the receiver’s position. The purpose of this work is to profile the PCPS algorithm within the framework of an open-source receiver project, "GNSS-SDR" (An open-source Global Navigation Satellite Systems software-defined receiver). The work involves profiling the code written in C++ to determine its execution times based on various problem sizes and the number of available cores and conduct a scalability analysis.