WO2003107533A3 - Verfahren zur digitalen filterung - Google Patents

Verfahren zur digitalen filterung Download PDF

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Publication number
WO2003107533A3
WO2003107533A3 PCT/DE2003/002050 DE0302050W WO03107533A3 WO 2003107533 A3 WO2003107533 A3 WO 2003107533A3 DE 0302050 W DE0302050 W DE 0302050W WO 03107533 A3 WO03107533 A3 WO 03107533A3
Authority
WO
WIPO (PCT)
Prior art keywords
input values
output value
fixed
point format
filtering method
Prior art date
Application number
PCT/DE2003/002050
Other languages
English (en)
French (fr)
Other versions
WO2003107533A2 (de
Inventor
Markus Wintermantel
Original Assignee
Adc Automotive Dist Control
Markus Wintermantel
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 Adc Automotive Dist Control, Markus Wintermantel filed Critical Adc Automotive Dist Control
Priority to EP03759867A priority Critical patent/EP1514347B1/de
Priority to DE10392630T priority patent/DE10392630D2/de
Priority to AU2003250754A priority patent/AU2003250754A1/en
Priority to JP2004514218A priority patent/JP2006510236A/ja
Publication of WO2003107533A2 publication Critical patent/WO2003107533A2/de
Publication of WO2003107533A3 publication Critical patent/WO2003107533A3/de
Priority to US11/018,865 priority patent/US7444365B2/en

Links

Classifications

    • 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
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/023—Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/22—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using irregular pulse repetition frequency
    • G01S13/222—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using irregular pulse repetition frequency using random or pseudorandom pulse repetition frequency
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
    • G01S13/524—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
    • G01S13/5244—Adaptive clutter cancellation
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • 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
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/023—Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques
    • G01S7/0235—Avoidance by time multiplex
    • 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
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • G01S7/285—Receivers
    • G01S7/292—Extracting wanted echo-signals
    • G01S7/2923—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods
    • G01S7/2927—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods by deriving and controlling a threshold value
    • 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
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/36—Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0261—Non linear filters
    • H03H17/0263—Rank order filters
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9323—Alternative operation using light waves
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9324—Alternative operation using ultrasonic waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Nonlinear Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Image Processing (AREA)
  • Amplitude Modulation (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

Es wird ein Verfahren zur digitalen Filterung von K Eingangswerten mittels eines nichtlinearen Filters vorgestellt, wobei das Filter als Ausgangswert den R-größten Wert aus den K Eingangswerten erzeugt (K >= R >= 1). Insbesondere kann dieses Verfahren genutzt werden, um als Ausgangswert den Median aus einer ungeraden Anzahl K von Eingangswerten zu erzeugen, bei dem somit R=(K+1)/2 ist. Grundgedanke ist dabei zum einen die Verwendung einer binären Darstellung der Eingangswerte in Festkommaformat und zum anderen eine bitserielle Abarbeitung, wobei sich alle üblichen binären Zahlendarstellungen in Festkommaformat verwenden lassen und nur geringfügige Anpassungen unter Berücksichtigung der jeweiligen Eigenheiten der verwendeten Zahlendarstellung erforderlich sind. Das Verfahren kann zur Realisierung digitaler Filter, insbesondere zur Signalverarbeitung in Systemen zur Objekterkennung eingesetzt werden.
PCT/DE2003/002050 2002-06-18 2003-06-18 Verfahren zur digitalen filterung WO2003107533A2 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP03759867A EP1514347B1 (de) 2002-06-18 2003-06-18 Verfahren zur digitalen filterung
DE10392630T DE10392630D2 (de) 2002-06-18 2003-06-18 Verfahren zur digitalen Filterung
AU2003250754A AU2003250754A1 (en) 2002-06-18 2003-06-18 Digital filtering method
JP2004514218A JP2006510236A (ja) 2002-06-18 2003-06-18 ディジタル濾波方法
US11/018,865 US7444365B2 (en) 2002-06-18 2004-12-20 Non-linear digital rank filtering of input signal values

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10250607.8 2002-06-18
DE10250607 2002-06-18

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/018,865 Continuation US7444365B2 (en) 2002-06-18 2004-12-20 Non-linear digital rank filtering of input signal values

Publications (2)

Publication Number Publication Date
WO2003107533A2 WO2003107533A2 (de) 2003-12-24
WO2003107533A3 true WO2003107533A3 (de) 2004-05-06

Family

ID=29723935

Family Applications (3)

Application Number Title Priority Date Filing Date
PCT/DE2003/002051 WO2003107528A2 (de) 2002-06-18 2003-06-18 Schaltungsanordnung zur erzeugung eines iq-signals
PCT/DE2003/002046 WO2003107035A2 (de) 2002-06-18 2003-06-18 Verfahren zur unterdrückung von störungen in systemen zur objekterfassung
PCT/DE2003/002050 WO2003107533A2 (de) 2002-06-18 2003-06-18 Verfahren zur digitalen filterung

Family Applications Before (2)

Application Number Title Priority Date Filing Date
PCT/DE2003/002051 WO2003107528A2 (de) 2002-06-18 2003-06-18 Schaltungsanordnung zur erzeugung eines iq-signals
PCT/DE2003/002046 WO2003107035A2 (de) 2002-06-18 2003-06-18 Verfahren zur unterdrückung von störungen in systemen zur objekterfassung

Country Status (6)

Country Link
US (1) US7463181B2 (de)
EP (2) EP1514347B1 (de)
JP (2) JP2005530164A (de)
AU (3) AU2003250755A1 (de)
DE (4) DE10392630D2 (de)
WO (3) WO2003107528A2 (de)

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EP1514347B1 (de) 2011-11-16
AU2003254609A8 (en) 2003-12-31
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WO2003107528A2 (de) 2003-12-24
EP1514347A2 (de) 2005-03-16
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AU2003250755A1 (en) 2003-12-31
WO2003107533A2 (de) 2003-12-24
US7463181B2 (en) 2008-12-09
AU2003250754A8 (en) 2003-12-31
US20060036353A1 (en) 2006-02-16
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