Ultrasonic Distance Measurement Method by Using the Envelope Model of Received Signal Based on System Dynamic Model of Ultrasonic Transducers

被引：3
作者：
Choe, Jin-Hee [1 ]
Lee, Kook-Sun [2 ]
Choy, Ick [1 ]
Cho, Whang [1 ]
机构：
[1] Kwangwoon Univ, Sch Robot, Seoul, South Korea
[2] SNUT, Dept Elect & Informat Engn, Seoul, South Korea
来源：
JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY | 2018年 / 13卷 / 02期
关键词：
Envelope model; Least square algorithm; System dynamic model of ultrasonic transducer; Time of flight; Ultrasonic distance measurement; TIME-OF-FLIGHT; CROSS-CORRELATION;
D O I：
10.5370/JEET.2018.13.2.981
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：
In order to acquire an accurate TOF, this paper proposes a method that produces TOF by using a mathematical model for the envelope of the received signal obtained from a system dynamic model of ultrasonic transducer. The proposed method estimates the arrival time of the received signal retrospectively by comparing its wave form obtained after triggering point with its mathematical envelope model. Experimental result shows that the error due to variation of triggering point can be dramatically decreased by implementing the proposed method.
引用
收藏
页码：981 / 988
页数：8
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