在汽车雷达频率的ADAS传感器中,汽车保险的影响
Isabel Expósito1, Ingo Chin2, Manuel García Sánchez1
1atlanTTic Research Center, Signal Theory and Communications Department, Universidade de Vigo, 36310 Vigo, Spain.
Sensors (Basel, Switzerland)
|October 14, 2023
概括
汽车保险对高级驾驶辅助系统 (ADAS) 中使用的W频段雷达造成最小的信号减弱,低于1.25dB. 信号损失随着频率的提高而减少,确保车辆安全技术的可靠性能.
科学领域:
- 电磁学和材料科学 电磁学和材料科学
- 汽车工程 汽车工程
- 信号处理 信号处理
背景情况:
- W频段雷达对于先进的驾驶辅助系统 (ADAS) 至关重要,例如自适应巡航控制和避免碰撞.
- 将雷达系统集成到车辆保险中需要了解材料诱导的信号减弱.
- 智能运输系统 (ITS) 依赖于强大的雷达性能,以提高交通安全.
研究的目的:
- 量化汽车保险在W频段频率中引入的信号减弱.
- 为了研究不同保险材料组成对雷达信号传播的影响.
- 为了评估与保险衰减分析相关的测量不确定性.
主要方法:
- 在无声室内利用自由空间传输技术进行受控测量.
- 测试了各种不同材料组成的各种汽车保险样本.
- 在W波段雷达频率范围内测量信号衰减.
主要成果:
- 所有测试的保险样本都显示信号衰减低于1.25dB.
- 衰减随着频率的增加而减少,观察到0.55dB至0.86dB的差异.
- 较厚的漆层和保险组合中的滑石粉的存在与较高的衰减相关.
- 测量不确定性量化为低于0.21dB (95%覆盖区间).
结论:
- 汽车保险对W波段雷达系统的信号减弱是可以忽略不计的.
- 信号衰减取决于频率,在W频段内的更高频率下降.
- 材料的组成,特别是漆的厚度和粉含量,影响衰减水平.
- 精确的测量低不确定性是可以实现的,在较低的频率更高的相对精度.
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