由FMCW雷达异步破坏的距离多普勒地图的重建
Kyung-Min Lee1, In-Seong Lee2, Hee-Sub Shin3
1Department of Electrical Engineering, Pohang University of Science and Technology, 77 Cheongam-ro, Nam-gu, Pohang 37673, Republic of Korea.
Sensors (Basel, Switzerland)
|July 8, 2023
概括
本研究介绍了一种新方法来修复频率调制连续波 (FMCW) 雷达系统中因时钟信号异步而导致的损坏的范围多普勒地图. 该技术成功重建数据,确保准确的目标检测.
科学领域:
- 雷达系统工程 雷达系统工程
- 信号处理 信号处理
- 汽车传感器传感器是什么?
背景情况:
- 频调制连续波 (FMCW) 雷达系统依赖于发射器和接收器时钟信号之间的精确同步.
- 异步问题可能导致损坏的射程多普勒 (R-D) 地图,妨碍准确的目标检测和跟踪.
- 现有的方法可能会在现实场景中与异步错误的动态性质作斗争.
研究的目的:
- 开发和验证一种新的信号处理方法,用于在FMCW雷达系统中重建受损的研发地图.
- 为应对因时钟信号异步造成的研发地图损坏的挑战.
- 为了提高FMCW雷达系统的可靠性,用于目标检测应用.
主要方法:
- 建议采用信号处理方法来重建因FMCW雷达异步损坏的研发地图.
- 图像为每个R-D地图计算,以识别损坏的实例.
- 损坏的研发地图是使用在损坏之前和之后立即获得的有效研发地图来重建的.
主要成果:
- 提出的方法有效地提取和重建损坏的研发地图.
- 在室内和室外环境中对人类和骑自行车的目标进行实验验证,证明了成功的重建.
- 与地面真实数据的比较证实了重建的距离和速度信息的准确性.
结论:
- 开发的信号处理方法为经历异步的FMCW雷达系统的研发地图重建提供了强大的解决方案.
- 该技术通过减轻时钟信号错误的影响来提高目标检测的可靠性.
- 这项工作有助于推进可靠的雷达传感技术.
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