トウ　リヨウ   Ryo TOH   陶　良    所属   千葉工業大学  工学部 電気電子工学科    千葉工業大学  工学研究科 工学専攻    千葉工業大学  工学研究科 電気電子工学専攻    職種   教授
言語種別	英語
発行・発表の年月	2012/10
形態種別	学術雑誌
査読	査読あり
標題	An Experimental Study on Speed Measurement Using Sensitivity Compensated Signal and Linear Prediction Processing
執筆形態	共著
掲載誌名	Proc. IEEE Ultrasonics Symposium International
出版社・発行元	IEEE
巻・号・頁	pp.1461-1464
著者・共著者	Ryo Toh, Dai Chimura, Seiichi Motooka
概要	Ultrasonic pulse-echo method is widely employed for acoustical measurement in ocean or remote sensing of automobiles and robots. For speed measurement, the Doppler frequency shift is usually employed, but lower speed is difficult to be measured owing to the resolution of the frequency. In this paper, the efficiency of sensitivity compensated (SC) transmitting signal and linear prediction (LP) processing for measuring lower speed (1.0 m/s ~ 2.0 m/s) using dual-pulses is studied experimentally. Five kinds of measurement result, a) using Chirp wave, b) using AMSC signal, c) using FMSC signal, d) using AMSC signal with LP, and e) using FMSC signal with LP, are compared. The results show that the accuracy of b) ~ d) are similar (with error less than 10%) with clear improvement from that of a), but that of e) is the worst.