会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明申请
    • EMPIRICAL MODE DECOMPOSITION FOR ANALYZING ACOUSTICAL SIGNALS
    • 用于分析声学信号的实验模式分解
    • WO02065157A2
    • 2002-08-22
    • PCT/US0201250
    • 2002-02-13
    • NASAHUANG NORDEN E
    • HUANG NORDEN E
    • G06F17/14G10L15/20G10L19/02G10L21/0208G01V3/00
    • G10L21/0208G06F17/14G06F17/141G10L15/20G10L19/0212
    • The present invention discloses a computer (410) implemented signal analysis method through the Hilbert-Huang Transformation "HHT" for analyzing acoustical signals (10), which are assumed to be nonlinear and nonstationary. The Empirical Decomposition Method "EMD" and the Hilbert Spectral Analysis "HSA" are used to obtain the HHT. Essentially, the acoustical signal will be decomposed into the Intrinsic Mode Function Components "IMFs". Once the invention decomposes the acoustic signal into its constituting components, all operations such as analyzing, identifying, and removing unwanted signals can be performed on these components. Upon transforming the IMFs into Hilbert spectrum, the acoustical signal may be compared with other acoustical signals.
    • 本发明公开了一种通过希尔伯特黄变换“HHT”分析声信号(10)的计算机(410)信号分析方法,其被假定为非线性和非平稳的。 经验分解法“EMD”和希尔伯特谱分析“HSA”用于获得HHT。 本质上,声信号将被分解为内在模式功能组件“IMF”。 一旦本发明将声信号分解成其构成部件,可以对这些部件执行所有操作,例如分析,识别和去除不需要的信号。 在将IMF转换成希尔伯特频谱时,声信号可以与其他声学信号进行比较。