›› 2013, Vol. 26 ›› Issue (8): 57-.

• 论文 • 上一篇    下一篇

一种基于多普勒特征的障碍物检测方法

景雄,杜自成,李飞   

  1. (西安电子工程研究所 总体2部,陕西 西安 710100)
  • 出版日期:2013-08-15 发布日期:2013-09-25
  • 作者简介:景雄(1986—),男,硕士研究生。研究方向:雷达信号与数据处理。E-mail:shutboy@126.com。杜自成(1964—),男,研究员。研究方向:雷达总体设计。李飞(1984—),男,工程师。研究方向:雷达信号与数据处理。

Obstacle Detection by Doppler Frequency Shift

JING Xiong,DU Zicheng,LI Fei   

  1. (Second Department of Overall Management,Xi'an Electronic Engineering Research Institute,Xi'an 710100,China)
  • Online:2013-08-15 Published:2013-09-25

摘要:

目前无人地面车进行地形障碍物检测主要依靠以激光雷达为主的多种传感器,而对利用毫米波雷达进行检测的方法研究较少。文中介绍了采用毫米波雷达进行障碍物检测的总体思路和雷达参数的选择;描述了多普勒频移与障碍物高度的关系;分析了平坦地面、凸出障碍物和壕沟的高度像特征,并在此基础上提出一种利用多普勒特征估算障碍物高度以及对障碍物进行分类的方法。仿真结果表明,只要雷达满足频率分辨力的要求,文中算法具有良好的可行性。

关键词: 障碍物检测, 多普勒, 障碍物分类, 毫米波雷达, 壕沟宽度

Abstract:

Currently most autonomous land vehicles use short range laser sensors to accomplish obstacle detection tasks,lacking of research on the methods using millimeter wave radar.This paper firstly describes the general idea of the obstacle detection using millimeter-wave radar and the selection of radar parameters.And then the relationship between the height of obstacles and the Doppler frequency shift is discussed.Finally we propose a method for the height estimation and classification of obstacles based on the analysis of the characteristics of the flat ground,protruding obstacles and trenches.The simulation results show that the algorithm is feasible as long as the radar frequency resolution meets the requirements.

Key words: obstacle detection;doppler frequency shift;obstacle classification;millimeter wave radar;trench width

中图分类号: 

  • TN958