对于汽车雷达的无监督在线错位检测和保险错误补偿的贡献
Alexandru Bobaru1, Corina Nafornita1, George Copacean2
1Communications Department, Politehnica University of Timisoara, 300223 Timisoara, Romania.
Sensors (Basel, Switzerland)
|August 12, 2023
概括
本研究介绍了无监督的在线方法,用于自动纠正高级驾驶员辅助系统 (ADAS) 中的雷达传感器错误. 这些技术提高了无需特殊设备的角度性能,确保了汽车安全的持续准确性.
科学领域:
- 汽车工程 汽车工程
- 传感器技术 传感器技术
- 信号处理 信号处理
背景情况:
- 雷达传感器对于高级驾驶辅助系统 (ADAS) 来说至关重要,需要高精度的交通检测和距离.
- 诸如传感器放置,环境暴露和安装容忍等因素可能会降低雷达的角度性能.
- 现有的校准方法往往很复杂,需要专门的设备,限制了它们在传感器的整个生命周期中的适用性.
研究的目的:
- 开发无监督的在线方法来补偿汽车雷达传感器的高度安装角度错误.
- 引入一种方法来补偿由保险和环境因素引起的 азимут误差.
- 提供校准解决方案,消除了对专用校准具的需求,并使持续的传感器重新校准成为可能.
主要方法:
- 一种独立的垂直调整方法使用静止的雷达目标和线路调整算法来确定垂直错位.
- 垂直补偿方法提供了动态 (快速融合) 和长期 (缓慢融合) 校正值.
- 一种自行方向校正方法利用车辆速度和雷达目标属性 (相对速度,自行方向角度) 来生成个别的校正曲线.
主要成果:
- 提出的无监督在线方法有效地弥补了汽车雷达传感器的高度和度错误.
- 垂直对齐方法准确计算不对齐角度,并提供可适应的校正值.
- 阿齐木斯补偿方法基于实时驾驶数据生成个性化的校正曲线.
- 使用77 GHz汽车雷达的真实数据进行的性能分析显示了令人鼓舞的结果.
结论:
- 开发的无监督在线校准方法为在ADAS中保持雷达传感器精度提供了强大的和可适应的解决方案.
- 这些方法简化了校准,减少了对专用设备的依赖,并确保了传感器在车辆使用寿命中可靠的性能.
- 这些发现为更可靠,更准确的先进驾驶员辅助系统铺平了道路.
关键词:
AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD AD ADD was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was was这就是ADAS ADAS.自动驾驶自动驾驶的自动驾驶.自动校准自动校准.汽车雷达 汽车雷达 雷达阿齐木斯校准的校准方法撞车对冲的补偿高度校准的高度校准.横向的错位是指水平的错位.垂直错位是指垂直的错位.相关概念视频
Errors in Global Positioning System
67
Global Positioning System (GPS) technology has revolutionized navigation and positioning, but its accuracy is often compromised by various errors. These errors, stemming from environmental, satellite, and receiver-related factors, require careful mitigation to ensure reliable performance across applications.Atmospheric ErrorsGPS signals travel through the Earth’s ionosphere and troposphere, introducing delays which affect accuracy. The ionosphere is strongly influenced by charged particles,...
67
Errors in Taping
49
Errors in taping arise from multiple factors that can significantly impact measurement accuracy in surveying. Misalignment of the tape, often due to human error, is one primary source. A skilled rear tapeman, using a telescope, can help correct alignment by guiding the head tapeman; however, human limitations still lead to small inaccuracies. These errors may include misplacement of pins or inaccurate tape readings due to common visual confusions, such as mistaking a six for a nine. Such...
49
Relative Motion Analysis using Rotating Axes-Problem Solving
421
Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...
Here, in order to determine the magnitude of velocity and acceleration for point...
421


