DocumentCode :
3245395
Title :
A smart ultrasonic beam controller
Author :
Fink, Edward
Author_Institution :
425 S. Valley, Ridgecrest, CA, USA
fYear :
1998
fDate :
15-17 Sep 1998
Firstpage :
51
Lastpage :
57
Abstract :
This paper presents the system design of a smart controller which simulation studies show has the potential of achieving ultrasonic-linked, voice selective control through neurofuzzy network and FFT software embedded in a dual microprocessor system. The neurofuzzy network serves as a speech recognition processor which is speaker independent. The second microprocessor performs an FFT function on the input signal. The output of the neurofuzzy network is a digital pattern in which the 1´s switch on members of an array of ultrasonic transducers each tuned to a different frequency, Integration techniques which hold promise are discussed. Performance of the neurofuzzy network software trained by five different training algorithms was measured and compared in terms of metrics: recognition accuracy, learning rate, speaker sensitivity error, recall/forget ratio, and false command reject/accept ratio. Algorithms which provide the best results are determined. In addition the effects of varying the number of input nodes and the number of fuzzy logic classes are determined
Keywords :
fast Fourier transforms; intelligent control; learning (artificial intelligence); neurocontrollers; speaker recognition; telecontrol; ultrasonic applications; ultrasonic transducer arrays; FFT software; dual microprocessor system; false command reject/accept ratio; input nodes; learning rate; neurofuzzy network; recall/forget ratio; recognition accuracy; smart controller; speaker sensitivity error; speech recognition processor; system design; training algorithms; ultrasonic beam controller; ultrasonic transducer array; voice selective control; Embedded software; Frequency; Microprocessors; Software algorithms; Software measurement; Software performance; Speech recognition; Switches; Ultrasonic transducer arrays; Ultrasonic transducers;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wescon/98
Conference_Location :
Anaheim, CA
ISSN :
1095-791X
Print_ISBN :
0-7803-5078-2
Type :
conf
DOI :
10.1109/WESCON.1998.716420
Filename :
716420
Link To Document :
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