基于速度差补偿的双频连续波雷达室内人体定位方法

doi:10.11999/JEIT160861

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Abstract

The radar technology used in indoor localization prefers wide bandwidth frequency modulated continuous wave for high accuracy, yet this way needs specific device and suffers from clutters. In order to reduce the bandwidth overhead, the indoor human localization is implemented based on dual frequency continuous wave phase ratio. However, the receive signal spectrum spreads due to the complex indoor environment and the changing moving speed. The spectrum spread will leads to SNR reduction, energy divergence and wrong peak value, which decrease velocity measuring and localization accuracy. To improve the location accuracy, the frequency domain signal is calibrated with the proposed partial velocity deviation compensation algorithm in the dual frequency phase ratio localization. The experiment results show that the root mean square error of the distance measuring is as high as 9 ~ 14 cm in low bandwidth, which is parallel to the state of art. Moreover, the indoor localization and tracking can work in real time by using the proposed low complexity algorithm.

Key words： Dual frequency CW radar Velocity deviation compensation Localization and tracking

Received: 22 August 2016 Published: 21 March 2017

PACS:

TN953

Fund:

The National Natural Science Foundation of China (61373042, 61502361)

Corresponding Authors: LI Fangmin E-mail: lifangmin@whut.edu.cn

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	LI Fangmin
	XIA Yuqing
	MA Xiaolin
	ZHAO Bihai

Cite this article:

LI Fangmin,XIA Yuqing,MA Xiaolin等. Indoor Human Localization Method of Dual Frequency Continuous Wave Radar with Velocity Deviation Compensation[J]. JEIT, 2017, 39(6): 1432-1438.

URL:

http://jeit.ie.ac.cn/EN/10.11999/JEIT160861 OR http://jeit.ie.ac.cn/EN/Y2017/V39/I6/1432

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