DOA estimation using temporal spatial virtual array based on Doppler shift with adaptive PRI control

Hirotaka Hayashi, Tomoaki Ohtsuki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Recently, Doppler radars have been used in various applications from the detection and the classification of indoor human activities to the detection of airplanes. To improve both the degrees of freedom (DOF) and the estimation accuracy of the direction-of-arrival (DOA) of targets, multiple-input multiple-output (MIMO) radar has received much attention in recent years. The temporal spatial virtual array based on Doppler shift of a moving target has been one of methods to improve DOA estimation accuracy. However, the DOA estimation accuracy based on the method depends on the velocity and the direction of the target on which we focus. Also, the temporal spatial virtual array should be generated based on the information of the single target. Thus, it is difficult to implement the method if there are multiple targets. In this paper, we propose a new method that provides high accuracy of DOA estimation by using the temporal spatial virtual array without dependence on the velocity, the direction and the number of existing targets. We demonstrate the DOA estimation accuracy and the effectiveness of the proposed method via simulations.

Original languageEnglish
Pages (from-to)2009-2018
Number of pages10
JournalIEICE Transactions on Communications
VolumeE99B
Issue number9
DOIs
Publication statusPublished - 2016 Sep

Keywords

  • Array signal processing
  • DOA estimation
  • Doppler radar
  • MIMO radar

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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