Title :
An optimum calculation method for vehicle ground velocity measurement using the Doppler effect of ultrasonic waves
Author :
Kimura, Toshiya ; Kobayashi, Hiroshi
Author_Institution :
Nissan Motor Co. Ltd., Kanagawa, Japan
fDate :
28 Oct-1 Nov 1991
Abstract :
A novel ultrasonic method that takes into account the difference between the velocity of sound and that of electromagnetic waves in computing the propagation path of ultrasonic waves has been developed to permit more accurate calculation of vehicle velocity. The proposed calculation method makes possible more accurate measurement of vehicle ground velocity. The method has been successfully employed in a highly precise velocity sensor
Keywords :
Doppler effect; ultrasonic velocity measurement; Doppler effect; electromagnetic waves; propagation path; ultrasonic method; ultrasonic waves; vehicle ground velocity measurement; velocity of sound; velocity sensor; Doppler effect; Doppler shift; Electrooptic effects; Equations; Frequency measurement; Land vehicles; Road vehicles; Signal processing; Ultrasonic variables measurement; Velocity measurement;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-87942-688-8
DOI :
10.1109/IECON.1991.238970
