DE69328828D1 - Verfahren und gerät zur analyse von zeitlich veränderlichem frequenzspektrum - Google Patents

Verfahren und gerät zur analyse von zeitlich veränderlichem frequenzspektrum

Info

Publication number
DE69328828D1
DE69328828D1 DE69328828T DE69328828T DE69328828D1 DE 69328828 D1 DE69328828 D1 DE 69328828D1 DE 69328828 T DE69328828 T DE 69328828T DE 69328828 T DE69328828 T DE 69328828T DE 69328828 D1 DE69328828 D1 DE 69328828D1
Authority
DE
Germany
Prior art keywords
time varying
discrete
sequence
spectrum
input signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69328828T
Other languages
English (en)
Other versions
DE69328828T2 (de
Inventor
Shie Qian
Dapang Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Instruments Corp
Original Assignee
National Instruments Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by National Instruments Corp filed Critical National Instruments Corp
Publication of DE69328828D1 publication Critical patent/DE69328828D1/de
Application granted granted Critical
Publication of DE69328828T2 publication Critical patent/DE69328828T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/16—Spectrum analysis; Fourier analysis

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Complex Calculations (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
DE69328828T 1992-03-17 1993-03-17 Verfahren und gerät zur analyse von zeitlich veränderlichem frequenzspektrum Expired - Lifetime DE69328828T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/851,725 US5353233A (en) 1992-03-17 1992-03-17 Method and apparatus for time varying spectrum analysis
PCT/US1993/002499 WO1993019378A1 (en) 1992-03-17 1993-03-17 Method and apparatus for time varying spectrum analysis

Publications (2)

Publication Number Publication Date
DE69328828D1 true DE69328828D1 (de) 2000-07-13
DE69328828T2 DE69328828T2 (de) 2001-02-15

Family

ID=25311508

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69328828T Expired - Lifetime DE69328828T2 (de) 1992-03-17 1993-03-17 Verfahren und gerät zur analyse von zeitlich veränderlichem frequenzspektrum

Country Status (6)

Country Link
US (1) US5353233A (de)
EP (1) EP0632899B1 (de)
JP (1) JP2697957B2 (de)
AT (1) ATE193769T1 (de)
DE (1) DE69328828T2 (de)
WO (1) WO1993019378A1 (de)

Families Citing this family (26)

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US5736631A (en) * 1996-03-11 1998-04-07 Turf Diagnostics & Design, Inc. Turf impact analysis system
JP3552837B2 (ja) * 1996-03-14 2004-08-11 パイオニア株式会社 周波数分析方法及び装置並びにこれを用いた複数ピッチ周波数検出方法及び装置
JP3266819B2 (ja) * 1996-07-30 2002-03-18 株式会社エイ・ティ・アール人間情報通信研究所 周期信号変換方法、音変換方法および信号分析方法
US5852567A (en) * 1996-07-31 1998-12-22 Hughes Electronics Corporation Iterative time-frequency domain transform method for filtering time-varying, nonstationary wide band signals in noise
US5845241A (en) * 1996-09-04 1998-12-01 Hughes Electronics Corporation High-accuracy, low-distortion time-frequency analysis of signals using rotated-window spectrograms
AU763046B2 (en) * 1997-08-14 2003-07-10 Hendry Mechanical Works Electric arc monitoring systems
US5952957A (en) * 1998-05-01 1999-09-14 The United States Of America As Represented By The Secretary Of The Navy Wavelet transform of super-resolutions based on radar and infrared sensor fusion
US6772077B1 (en) 1998-08-10 2004-08-03 Hendry Mechanical Works Electric arc monitoring systems
US6301572B1 (en) 1998-12-02 2001-10-09 Lockheed Martin Corporation Neural network based analysis system for vibration analysis and condition monitoring
US6944318B1 (en) 1999-01-15 2005-09-13 Citicorp Development Center, Inc. Fast matching systems and methods for personal identification
US6434515B1 (en) 1999-08-09 2002-08-13 National Instruments Corporation Signal analyzer system and method for computing a fast Gabor spectrogram
US6754620B1 (en) * 2000-03-29 2004-06-22 Agilent Technologies, Inc. System and method for rendering data indicative of the performance of a voice activity detector
US6810341B2 (en) 2000-04-19 2004-10-26 National Instruments Corporation Time varying harmonic analysis including determination of order components
US6332116B1 (en) 2000-04-19 2001-12-18 National Instruments Corporation System and method for analyzing signals of rotating machines
US6366862B1 (en) 2000-04-19 2002-04-02 National Instruments Corporation System and method for analyzing signals generated by rotating machines
US6850552B2 (en) 2000-12-01 2005-02-01 Klaus Bibl Iterative precision spectrum analysis
DE10110208A1 (de) * 2001-03-02 2002-09-19 Siemens Production & Logistics Verfahren zum Spezifizieren, Ausführen und Analysieren von Verfahrensabläufen beim Erkennen
US7158901B2 (en) * 2004-07-12 2007-01-02 Tektronix, Inc. FFT accelerated display mode
US7958488B2 (en) * 2005-08-16 2011-06-07 National Instruments Corporation Virtual testing in a development environment
US8185316B2 (en) * 2007-05-25 2012-05-22 Prime Geoscience Corporation Time-space varying spectra for seismic processing
US9164131B2 (en) 2010-05-13 2015-10-20 Tektronix, Inc. Signal recognition and triggering using computer vision techniques
JP5778762B2 (ja) * 2010-05-25 2015-09-16 ザ ジェネラル ホスピタル コーポレイション 光コヒーレンストモグラフィー画像のスペクトル解析のための装置及び方法
RU2449298C1 (ru) * 2010-12-23 2012-04-27 ОАО "Концерн "Океанприбор" Способ определения энергии помехи
TWI438416B (zh) * 2011-04-14 2014-05-21 Delta Electronics Inc 使用連續遞移轉換之信號分析系統及方法
EP3153872A1 (de) * 2015-10-06 2017-04-12 ABB Schweiz AG Verfahren und system zur bestimmung von phasorkomponenten einer periodischen wellenform
CN109633271A (zh) * 2019-01-17 2019-04-16 长沙理工大学 基于变分模态分解和维格纳威尔分布的行波时频分析方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837578A (en) * 1981-10-29 1989-06-06 California Institute Of Technology Apparatus and method for range detection using the analytic signal identified from the received signal
US4894795A (en) * 1987-04-28 1990-01-16 The United States Of America As Represented By The Secretary Of The Navy High-resolution technique for time-frequency signal analysis using modified wigner-ville analysis
US5046504A (en) * 1989-02-01 1991-09-10 Corazonix Corporation Method and apparatus for analyzing and interpreting electrocardiograms using spectro-temporal mapping
US5291560A (en) * 1991-07-15 1994-03-01 Iri Scan Incorporated Biometric personal identification system based on iris analysis

Also Published As

Publication number Publication date
ATE193769T1 (de) 2000-06-15
WO1993019378A1 (en) 1993-09-30
US5353233A (en) 1994-10-04
JP2697957B2 (ja) 1998-01-19
JPH07505949A (ja) 1995-06-29
EP0632899B1 (de) 2000-06-07
EP0632899A4 (de) 1996-09-11
EP0632899A1 (de) 1995-01-11
DE69328828T2 (de) 2001-02-15

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Legal Events

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8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: KUDLEK & GRUNERT PATENTANWAELTE PARTNERSCHAFT, 803