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Title
Japanese: 
English:Sensor signal processing for ultrasonic sensors using delta-sigma modulated single-bit digital signal 
Author
Japanese: 平田慎之介, 黒澤実, 片桐崇.  
English: Shinnosuke Hirata, Minoru Kuribayashi Kurosawa, Takashi Katagiri.  
Language English 
Journal/Book name
Japanese: 
English:Proc. of 29th Int. Symp. on Acoustical Imaging 
Volume, Number, Page        
Published date Apr. 2007 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English:29th Int. Symp. on Acoustical Imaging 
Conference site
Japanese: 
English:Shonan Village, Kanagawa, Japan 
Abstract Ultrasonic distance measurement is based on the determination of the time of flight of ultrasonic wave. The pulse compression technique that obtains the cross-correlation function between the received signal and the reference signal is used to improve the resolution of distance measurement. The cross-correlation method requires the high-cost digital signal processing. This paper presents the cross-correlation method using delta-sigma modulated single-bit digital signal. Proposed sensor signal processing is composed of the cross-correlation between two single-bit signals and post-moving average filter allows reducing the cost of digital signal processing.

©2007 Tokyo Institute of Technology All rights reserved.