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公开(公告)号：EP1341003A3
公开(公告)日：2003-12-17
申请号：EP03425118.1
申请日：2003-02-25
IPC分类号： G01S15/89
CPC分类号： G01S7/52038 , G01S7/52026 , G01S15/8977
摘要： A description is given of a method of spectral analysis of a radio frequency ultrasonic signal reflected by a structure subjected to echographic examination, comprising the steps of: a) transmitting an ultrasonic excitation signal into a portion of said structure under examination; b) receiving a radio frequency response signal from said structure; c) applying a time-frequency transform to said radio frequency response signal, dividing the radio frequency response signal into a plurality of frequency bands; d) calculating a local spectral parameter from the values of the time-frequency transform.
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2.发明公开Method and device for spectral analysis of an echographic signal 审中-公开Verfahren und Vorrichtung zur Spektralanalyse eines echographischen Signals
公开(公告)号：EP1341003A2
公开(公告)日：2003-09-03
申请号：EP03425118.1
申请日：2003-02-25
IPC分类号： G01S15/89
CPC分类号： G01S7/52038 , G01S7/52026 , G01S15/8977
摘要： A description is given of a method of spectral analysis of a radio frequency ultrasonic signal reflected by a structure subjected to echographic examination, comprising the steps of: a) transmitting an ultrasonic excitation signal into a portion of said structure under examination; b) receiving a radio frequency response signal from said structure; c) applying a time-frequency transform to said radio frequency response signal, dividing the radio frequency response signal into a plurality of frequency bands; d) calculating a local spectral parameter from the values of the time-frequency transform.
摘要翻译： 给出了由经受回波检查的结构反射的射频超声信号的频谱分析方法的描述，包括以下步骤：a）将超声波激发信号发送到被检查结构的一部分; b）从所述结构接收射频响应信号; c）对所述射频响应信号应用时频变换，将射频响应信号分成多个频带; d）根据时频变换值计算局部频谱参数。
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