DE60106255D1 - Rauscharme signalauswertung - Google Patents
Rauscharme signalauswertungInfo
- Publication number
- DE60106255D1 DE60106255D1 DE60106255T DE60106255T DE60106255D1 DE 60106255 D1 DE60106255 D1 DE 60106255D1 DE 60106255 T DE60106255 T DE 60106255T DE 60106255 T DE60106255 T DE 60106255T DE 60106255 D1 DE60106255 D1 DE 60106255D1
- Authority
- DE
- Germany
- Prior art keywords
- signal
- complex
- filtering factor
- low
- noise 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
- G01N29/4409—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison
- G01N29/4436—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison with a reference signal
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
- G01N29/38—Detecting the response signal, e.g. electronic circuits specially adapted therefor by time filtering, e.g. using time gates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
- G01N29/42—Detecting the response signal, e.g. electronic circuits specially adapted therefor by frequency filtering or by tuning to resonant frequency
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
- G01N29/46—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by spectral analysis, e.g. Fourier analysis or wavelet analysis
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/895—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum
- G01S15/8954—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum using a broad-band spectrum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8977—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using special techniques for image reconstruction, e.g. FFT, geometrical transformations, spatial deconvolution, time deconvolution
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52023—Details of receivers
- G01S7/52025—Details of receivers for pulse systems
- G01S7/52026—Extracting wanted echo signals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/523—Details of pulse systems
- G01S7/526—Receivers
- G01S7/527—Extracting wanted echo signals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/01—Indexing codes associated with the measuring variable
- G01N2291/012—Phase angle
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/04—Wave modes and trajectories
- G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA200002040 | 2000-04-25 | ||
ZA200002040 | 2000-04-25 | ||
PCT/IB2001/000685 WO2001081948A2 (en) | 2000-04-25 | 2001-04-25 | Low noise to signal evaluation |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60106255D1 true DE60106255D1 (de) | 2004-11-11 |
DE60106255T2 DE60106255T2 (de) | 2006-02-23 |
Family
ID=25588721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60106255T Expired - Lifetime DE60106255T2 (de) | 2000-04-25 | 2001-04-25 | Rauscharme signalauswertung |
Country Status (6)
Country | Link |
---|---|
US (1) | US7035776B2 (de) |
EP (1) | EP1297359B1 (de) |
AT (1) | ATE278970T1 (de) |
AU (1) | AU5245101A (de) |
DE (1) | DE60106255T2 (de) |
WO (1) | WO2001081948A2 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7945408B2 (en) * | 2007-09-20 | 2011-05-17 | Voxis, Inc. | Time delay estimation |
JP4821824B2 (ja) * | 2008-09-19 | 2011-11-24 | ソニー株式会社 | 画像表示装置、コネクタ表示方法、伝送路状態検出装置、伝送路状態検出方法および半導体集積回路 |
DE102011110170B4 (de) * | 2010-12-31 | 2019-05-02 | Volkswagen Aktiengesellschaft | Verfahren und Vorrichtung zur Auswertung von Reflektionssignalen eines Ultraschallsensors |
DE102011051762B4 (de) * | 2011-07-12 | 2022-05-05 | BAM Bundesanstalt für Materialforschung und -prüfung | Vorrichtung und Verfahren zur Überwachung einer drehenden Welle mittels transversaler Ultraschallwellen |
DE102011051761A1 (de) * | 2011-07-12 | 2013-01-17 | BAM Bundesanstalt für Materialforschung und -prüfung | Vorrichtung und Verfahren zur Überwachung einer drehenden Welle mittels longitudinaler Ultraschallwellen |
DE102018200686A1 (de) * | 2018-01-17 | 2019-07-18 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Auswerten von Ultraschallsignalen, Ultraschallmesssystem und Arbeitsvorrichtung |
Family Cites Families (18)
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 |
US5187687A (en) * | 1985-06-20 | 1993-02-16 | Kontron Instruments Holding N.V. | Production of images |
US4751846A (en) * | 1985-10-16 | 1988-06-21 | Kontron Holding A.G. | Reducing noise in ultrasonic images |
US4676250A (en) * | 1985-11-07 | 1987-06-30 | North American Philips Corporation | Method and apparatus for estimating the attenuation-vs-frequency slope of a propagation medium from the complex envelope of a signal |
CA1280808C (en) * | 1987-03-23 | 1991-02-26 | Seiichi Ishikawa | Calculation of filter factors for digital filter |
GB2252023B (en) * | 1991-01-21 | 1995-01-18 | Mitsubishi Electric Corp | Acoustic system |
US5253271A (en) * | 1991-02-15 | 1993-10-12 | Schlumberger Technology Corporation | Method and apparatus for quadrature amplitude modulation of digital data using a finite state machine |
FR2694149B1 (fr) * | 1992-07-21 | 1994-09-30 | Ezran Philippe | Procédé et dispositif de démodulation tout numérique de signal analogique. |
JPH07225273A (ja) * | 1994-02-15 | 1995-08-22 | Nec Eng Ltd | ソーナーの送受信装置 |
US6324290B1 (en) * | 1994-03-08 | 2001-11-27 | Bridgestone Corporation | Method and apparatus for diagnosing sound source and sound vibration source |
US5445156A (en) * | 1994-11-02 | 1995-08-29 | General Electric Company | Method for adaptively filtering doppler signals using a complex time domain filter |
US5891038A (en) * | 1996-12-30 | 1999-04-06 | General Electric Company | Method, apparatus and applications for combining transmit wave functions to obtain synthetic waveform in ultrasonic imaging system |
US5867479A (en) * | 1997-06-27 | 1999-02-02 | Lockheed Martin Corporation | Digital multi-channel demultiplexer/multiplex (MCD/M architecture) |
US6717991B1 (en) * | 1998-05-27 | 2004-04-06 | Telefonaktiebolaget Lm Ericsson (Publ) | System and method for dual microphone signal noise reduction using spectral subtraction |
US6097328A (en) * | 1998-07-02 | 2000-08-01 | Raytheon Company | Averaging-area-constrained adaptive interferometric filter that optimizes combined coherent and noncoherent averaging |
US7545854B1 (en) * | 1998-09-01 | 2009-06-09 | Sirf Technology, Inc. | Doppler corrected spread spectrum matched filter |
US6731710B1 (en) * | 1998-09-30 | 2004-05-04 | Alvarion Ltd. | Method for rapid carrier frequency estimation in a communication system |
US6470365B1 (en) * | 1999-08-23 | 2002-10-22 | Motorola, Inc. | Method and architecture for complex datapath decimation and channel filtering |
-
2001
- 2001-04-25 WO PCT/IB2001/000685 patent/WO2001081948A2/en active IP Right Grant
- 2001-04-25 DE DE60106255T patent/DE60106255T2/de not_active Expired - Lifetime
- 2001-04-25 US US10/258,646 patent/US7035776B2/en not_active Expired - Lifetime
- 2001-04-25 EP EP01925770A patent/EP1297359B1/de not_active Expired - Lifetime
- 2001-04-25 AU AU52451/01A patent/AU5245101A/en not_active Abandoned
- 2001-04-25 AT AT01925770T patent/ATE278970T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US7035776B2 (en) | 2006-04-25 |
EP1297359A2 (de) | 2003-04-02 |
AU5245101A (en) | 2001-11-07 |
ATE278970T1 (de) | 2004-10-15 |
DE60106255T2 (de) | 2006-02-23 |
EP1297359B1 (de) | 2004-10-06 |
WO2001081948A3 (en) | 2002-04-04 |
WO2001081948A2 (en) | 2001-11-01 |
US20030182089A1 (en) | 2003-09-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |