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The correlators, crucial in GNSS receiver processing, are computationally intensive. To boost software receiver performance, a dynamic link library using SIMD instructions in C/C++ has been developed. These advanced correlators are integrated into a Python-based GPS/BDS dual-constellation receiver, supporting end-to-end operations from signal acquisition to positioning. Live experiments reveal that SIMD-based parallel correlators achieve speeds over 12 times faster than correlators implemented solely by Python. This significant speedup enables near real-time processing, providing a flexible platform for GPS/BDS receiver algorithm research.

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Design and Implementation of a GPS/BDS Software Receiver Based on SIMD Acceleration

  • 会议论文

  • 发表日期：

    2025年

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  • Jianyong Li,
  • Junfang Fan,
  • Yafeng Li,
  • Yi Ji,
  • Xiaobin Xu,
  • Sixing Zhang

摘要

The correlators, crucial in GNSS receiver processing, are computationally intensive. To boost software receiver performance, a dynamic link library using SIMD instructions in C/C++ has been developed. These advanced correlators are integrated into a Python-based GPS/BDS dual-constellation receiver, supporting end-to-end operations from signal acquisition to positioning. Live experiments reveal that SIMD-based parallel correlators achieve speeds over 12 times faster than correlators implemented solely by Python. This significant speedup enables near real-time processing, providing a flexible platform for GPS/BDS receiver algorithm research.