›› 2013, Vol. 26 ›› Issue (8): 57-.

• Articles • Previous Articles     Next Articles

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

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

CLC Number: 

  • TN958