id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ap-336	Kreidl, M.; Houfek, P.	Reducing Ultrasonic Signal Noise by Algorithms based on Wavelet Thresholding	2002	6	.pdf	application/pdf	3104	121	60	60 © Czech Technical University Publishing House http://ctn.cvut.cz/ap/ Acta Polytechnica Vol. 42 No. 2/2002 Reducing Ultrasonic Signal Noise by Algorithms based on Wavelet Thresholding M. Kreidl, P. Houfek Traditional techniques for reducing ultrasonic signal noise are based on the optimum frequency of an acoustic wave, ultrasonic probe construction and low-noise electronic circuits. The coefficient of noise reduction �SN was defined for a comparison of the success of the used algorithms, according to Eq.	cache/ap-336.pdf	txt/ap-336.txt