Design and evaluation of a fast model-based algorithm for ultrasonic range measurements

被引：34

作者：

Raya, R. ^{[1
]}

Frizera, A. ^{[1
]}

Ceres, R. ^{[1
]}

Calderon, L. ^{[1
]}

Rocon, E. ^{[1
]}

机构：

[1] CSIC, Inst Automat Ind, Arganda Del Rey 28500, Spain

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2008年 / 148卷 / 01期

关键词：

Ultrasonic sensing; Time-of-flight measurement; Ultrasonic echo modelling; Algorithm;

D O I：

10.1016/j.sna.2008.07.001

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 proposes an algorithm for ultrasonic distance measurement applications. In order to estimate the time-of-flight (ToF), an analytic process is developed based on the mathematical model of the ultrasonic envelope signal improving some previous methods by extrapolation and characterization of this envelope function using analytical parameters. An architecture based on a digital signal processor has been implemented to excite the ultrasonic transducer with a burst of 40 kHz. The ultrasonic analogical echo is acquired at 500 kHz. The results indicate a significant improvement over other similar strategies, allowing a optimized implementation for applications such as mobile robots. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：335 / 341

页数：7

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