ACCURATE DIGITAL TIME-OF-FLIGHT MEASUREMENT USING SELF-INTERFERENCE

被引：31

作者：

CAI, CH ^{[1
]}

REGTIEN, PPL ^{[1
]}

机构：

[1] DELFT UNIV TECHNOL,DEPT ELECT ENGN,ELECTR INSTRUMENTAT LAB,2628 CD DELFT,NETHERLANDS

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 1993年 / 42卷 / 06期

关键词：

D O I：

10.1109/19.245651

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：

Most ultrasonic distance measurements are based on the determination of the time of flight. This paper presents a novel way for the measurement of the time of flight, based on the detection of the envelope zero in an ultrasonic wave. A particular wave form is produced by supplying two pulse trains subsequently to an acoustic transducer. Distance information is retrieved from the zero, so a fully digital measurement is possible, reducing signal-processing time and resulting in a fast and accurate distance measurement.

引用

页码：990 / 994

页数：5

共 13 条

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