二进制阶段与二进制阶段. 频率调节雷达测量了汽车应用中的性能
Mattia Caffa1, Francesco Biletta1, Riccardo Maggiora1
1Department of Electronics and Telecommunications, Politecnico di Torino, 10129 Torino, Italy.
Sensors (Basel, Switzerland)
|June 10, 2023
概括
阶段调制连续波 (PMCW) 雷达为汽车应用提供了比频率调制连续波 (FMCW) 雷达更高的性能. 现实世界的测试证实了PMCW.
科学领域:
- 汽车雷达技术 汽车雷达技术
- 对于先进的驾驶辅助系统的信号处理.
背景情况:
- 频率调制连续波 (FMCW) 雷达在汽车应用中普遍存在,用于先进的驾驶辅助系统 (ADAS).
- FMCW雷达存在局限性,包括干扰易感性,范围多普勒合,限制最大速度,以及由于侧面波减少的高对比分辨率 (HCR).
研究的目的:
- 介绍阶段调制连续波 (PMCW) 雷达系统的开发和现实世界的性能评估.
- 将PMCW雷达的测量性能与商业系统芯片 (SoC) FMCW雷达进行比较.
主要方法:
- 使用模块化组件和FPGA开发了一种1发送/1接收 (1Tx/1Rx) 的二元PMCW雷达.
- 为PMCW和FMCW系统完整开发和优化雷达处理固件.
- 在现实条件下对PMCW和FMCW雷达捕获的数据进行比较分析.
主要成果:
- 与FMCW雷达相比,PMCW雷达在解决关键限制方面表现出优越的性能.
- 观察到的改进包括增强的干扰弹性,更广泛的最大速度范围和更好的HCR.
- PMCW雷达的代码正交度有助于缓解干扰,并整合通信和传感功能.
结论:
- 阶段调制连续波 (PMCW) 雷达技术显示出相对于汽车雷达系统的FMCW显著的优势.
- 实验结果验证了PMCW雷达在现实汽车场景中的实际可行性和卓越性能.
- PMCW雷达是未来先进的驾驶辅助系统的可行和有前途的技术.
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