Title :
Digital time-of-flight measurement for ultrasonic sensors
Author :
Marioli, Daniele ; Narduzzi, Claudio ; Offelli, Carlo ; Petri, Dario ; Sardini, Emilio ; Taroni, Andrea
Author_Institution :
Dipartimento de Automazione Ind., Brescia Univ., Italy
fDate :
2/1/1992 12:00:00 AM
Abstract :
Ultrasonic sensor measurements are mostly based on the determination of the time of flight (TOF). The development of a digital algorithm for pulse-echo measurement applications, based on the use of a cross-correlation function to determine the TOF, is presented. Some experimental results are presented, and the possibility to realize a low-cost real-time measurement system is considered
Keywords :
computerised signal processing; digital instrumentation; distance measurement; echo; signal processing equipment; ultrasonic measurement; ultrasonic transducers; US range finding; cross-correlation function; digital algorithm; digital measurement; pulse-echo measurement; real-time measurement; time-of-flight measurement; ultrasonic sensors; Acoustic transducers; Frequency; Phase measurement; Pulse measurements; Pulse modulation; Time measurement; Transmitters; Ultrasonic transducers; Ultrasonic variables measurement; Wavelength measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
