硬 SyDR:全球导航卫星系统算法的基准测试环境
Antoine Grenier1, Jie Lei2, Hans Jakob Damsgaard1
1Electrical Engineering Unit, Tampere University, 33720 Tampere, Finland.
Sensors (Basel, Switzerland)
|January 23, 2024
概括
本研究介绍了Hard SyDR,这是开源GNSS软件定义无线电 (SDR) 的演变,以克服仅软件系统的局限性. 它可以在硬件层面进行分析,以优化全球导航卫星系统 (GNSS) 接收器,并探索近似计算 (AxC) 技术.
科学领域:
- 电气工程 电气工程
- 计算机工程 计算机工程
- 卫星导航系统 卫星导航系统
背景情况:
- 全球导航卫星系统 (GNSS) 对于定位和定时至关重要,它依赖于特定应用的集成电路 (ASIC).
- 目前的GNSS ASIC缺乏透明度,阻碍了全球导航卫星系统 (GNSS) 处理链的研究,修改和优化.
- 只有软件的全球导航卫星系统 (GNSS) 环境在分析硬件级性能指标方面存在局限性.
研究的目的:
- 审查全球导航卫星系统 (GNSS) 处理链并确定仅在软件环境中的局限性.
- 提出Hard SyDR,一种用于硬件级全球导航卫星系统 (GNSS) 分析的增强系统.
- 探索对未来低功耗全球导航卫星系统 (GNSS) 接收器的近似计算 (AxC) 技术的应用.
主要方法:
- 利用SyDR,一个开源的全球导航卫星系统 (GNSS) 软件定义无线电 (SDR),用于算法基准测试.
- 开发了硬件SyDR,集成高层合成 (HLS) 和PYNQ平台用于硬件加速和分析.
- 在开发过程中评估了高水平合成 (HLS) 和PYNQ平台的优势和局限性.
主要成果:
- 强调纯粹基于软件的全球导航卫星系统 (GNSS) 处理的限制.
- 证明了Hard SyDR的可行性,以访问硬件级别的关键性能指标 (KPIs),如功率和能源消耗.
- 为全球导航卫星系统 (GNSS) 研究提供了高水平合成 (HLS) 和PYNQ平台集成的概述.
结论:
- 硬式SyDR提供了一种途径,可以克服商业全球导航卫星系统 (GNSS) ASIC 的透明度限制.
- 该系统有助于探索先进的技术,如近似计算 (AxC),用于改进全球导航卫星系统 (GNSS) 接收器设计.
- 这项工作为开发更高效和可定制的低功耗全球导航卫星系统 (GNSS) 接收器奠定了基础.
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