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公开(公告)号：EP2872884B1
公开(公告)日：2018-09-26
申请号：EP13747440.9
申请日：2013-07-12
CPC分类号： G01N29/44 , G01N29/069 , G01N29/24 , G01N29/262 , G01N29/4472 , G01N29/46 , G01N2291/0289 , G01N2291/106 , G01S7/52046 , G01S7/52077 , G01S15/006 , G01S15/8927 , G01S15/8977
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2.发明公开PROCÉDÉ DE TRAITEMENT DE SIGNAUX ISSUS D'UNE ACQUISITION PAR SONDAGE ULTRASONORE, PROGRAMME D'ORDINATEUR ET DISPOSITIF DE SONDAGE À ULTRASONS CORRESPONDANTS 审中-公开方法用于处理由Echolotung识别的信号和相应的计算机程序和ECHOLOTUNGSVORRICHTUNG
公开(公告)号：EP2872884A1
公开(公告)日：2015-05-20
申请号：EP13747440.9
申请日：2013-07-12
CPC分类号： G01N29/44 , G01N29/069 , G01N29/24 , G01N29/262 , G01N29/4472 , G01N29/46 , G01N2291/0289 , G01N2291/106 , G01S7/52046 , G01S7/52077 , G01S15/006 , G01S15/8927 , G01S15/8977
摘要： The invention relates to a method (200) for processing ultrasonic signals, comprising the following steps: controlling (202) a plurality of emission transducers for L successive emissions of ultrasonic waves; controlling (202) N reception transducers so as to simultaneously receive N measuring signals for each successive emission, over a pre-determined period; and obtaining (204) a matrix (K(t)) of temporal ultrasonic signals of size Lx N, each coefficient K i,j (t) of said matrix representing the measuring signal received by the jth reception transducer as a result of the ith emission. Said method also comprises a step (208, 210, 212, 214, 216) of denoising the matrix (K(t)) of the temporal signals by eliminating (214) some of the singular values and associated singular vectors generated by the decomposition of a matrix (K(ω)) of frequential signals into singular values (210), obtained by the transformation (208) of said matrix (K(t)) of temporal signals, and by restoring (216) a denoised matrix (Kf(t)) of temporal signals from the non-eliminated singular values and singular vectors.
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