Gesture Sensing Using Retransmitted Wireless Communication Signals Based on Doppler Radar Technology

被引：38

作者：

Wang, Fu-Kang ^{[1
]}

Tang, Mu-Cyun ^{[1
]}

Chiu, Yen-Chen ^{[1
]}

Horng, Tzyy-Sheng ^{[1
]}

机构：

[1] Natl Sun Yat Sen Univ, Dept Elect Engn, Kaohsiung 804, Taiwan

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2015年 / 63卷 / 12期

关键词：

Doppler radar; gesture sensor; injection locking; injection-locked quadrature receiver; injection pulling; radio interference; Wi-Fi radar; wireless communication signal; RECOGNITION; SENSOR;

D O I：

10.1109/TMTT.2015.2495298

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a Doppler radar based on an injection-locked quadrature receiver (ILQR) architecture that can use the wireless communication signals from an input cable or an antenna to perform gesture sensing at a short distance. Since the proposed radar does not require an illumination source, radio interference does not occur. To study parametrically the effect of the signal parameters on radar detection performance, a simulation was carried out by modeling the radar system in the discrete-time domain, and the results were verified experimentally using an actuator. In demonstrated applications, the radar uses an input 20 MHz Long-Term Evolution (LTE) signal or captures an ambient Wi-Fi signal to detect several gestures quite successfully.

引用

页码：4592 / 4602

页数：11

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