SoC opportunities for boosting SDR GNSS performance

Abstract

Software-defined-radio (SDR) becomes an attractive technique for the development of GNSS receivers due to universal hardware and high flexibility. However, the performance of signal processing can be a challenging task. Real-time mode implementation requires fast floating point calculations in several threads, not available for most part of embedded systems. This paper describes the system-on-chip based device drastically increasing computational performance. A summary of computational complexity of each stage of GNSS receiver is provided and several particular solutions are proposed.