NL182267C - Hybridisch analoog en digitaal kamfilter voor het opheffen van stoorcomponenten. - Google Patents

Hybridisch analoog en digitaal kamfilter voor het opheffen van stoorcomponenten.

Info

Publication number
NL182267C
NL182267C NLAANVRAGE7416772,A NL7416772A NL182267C NL 182267 C NL182267 C NL 182267C NL 7416772 A NL7416772 A NL 7416772A NL 182267 C NL182267 C NL 182267C
Authority
NL
Netherlands
Prior art keywords
comb filter
interference components
digital comb
hybrid analogue
override
Prior art date
Application number
NLAANVRAGE7416772,A
Other languages
English (en)
Other versions
NL7416772A (nl
NL182267B (nl
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of NL7416772A publication Critical patent/NL7416772A/nl
Publication of NL182267B publication Critical patent/NL182267B/nl
Application granted granted Critical
Publication of NL182267C publication Critical patent/NL182267C/nl

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence
    • H03M1/0626—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence by filtering
    • 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
    • G01S13/526—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 performing filtering on the whole spectrum without loss of range information, e.g. using delay line cancellers or comb 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
    • 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
    • G01S7/34—Gain of receiver varied automatically during pulse-recurrence period, e.g. anti-clutter gain control
    • 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
    • H03H17/0251—Comb filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Radar Systems Or Details Thereof (AREA)
NLAANVRAGE7416772,A 1974-01-16 1974-12-23 Hybridisch analoog en digitaal kamfilter voor het opheffen van stoorcomponenten. NL182267C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US433958A US3894219A (en) 1974-01-16 1974-01-16 Hybrid analog and digital comb filter for clutter cancellation

Publications (3)

Publication Number Publication Date
NL7416772A NL7416772A (nl) 1975-07-18
NL182267B NL182267B (nl) 1987-09-01
NL182267C true NL182267C (nl) 1988-02-01

Family

ID=23722249

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7416772,A NL182267C (nl) 1974-01-16 1974-12-23 Hybridisch analoog en digitaal kamfilter voor het opheffen van stoorcomponenten.

Country Status (5)

Country Link
US (1) US3894219A (nl)
JP (1) JPS5531907B2 (nl)
DE (1) DE2501201C2 (nl)
FR (1) FR2258057A1 (nl)
NL (1) NL182267C (nl)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4581715A (en) * 1970-12-28 1986-04-08 Hyatt Gilbert P Fourier transform processor
US4553213A (en) * 1970-12-28 1985-11-12 Hyatt Gilbert P Communication system
US5459846A (en) * 1988-12-02 1995-10-17 Hyatt; Gilbert P. Computer architecture system having an imporved memory
US4686655A (en) * 1970-12-28 1987-08-11 Hyatt Gilbert P Filtering system for processing signature signals
US5410621A (en) * 1970-12-28 1995-04-25 Hyatt; Gilbert P. Image processing system having a sampled filter
US4491930A (en) * 1970-12-28 1985-01-01 Hyatt Gilbert P Memory system using filterable signals
US4553221A (en) * 1970-12-28 1985-11-12 Hyatt Gilbert P Digital filtering system
US4551816A (en) * 1970-12-28 1985-11-05 Hyatt Gilbert P Filter display system
US4744042A (en) * 1970-12-28 1988-05-10 Hyatt Gilbert P Transform processor system having post processing
US4944036A (en) * 1970-12-28 1990-07-24 Hyatt Gilbert P Signature filter system
US5053983A (en) * 1971-04-19 1991-10-01 Hyatt Gilbert P Filter system having an adaptive control for updating filter samples
US4059818A (en) * 1976-04-19 1977-11-22 Exxon Production Research Company Periodic waveform interference eliminator
US4046997A (en) * 1976-05-04 1977-09-06 Combustion Engineering, Inc. Digital-storage filter
JPS5332651A (en) * 1976-09-07 1978-03-28 Yokogawa Hokushin Electric Corp Analog operation unit
CH610157A5 (en) * 1976-12-22 1979-03-30 Hoffmann La Roche Filter arrangement
US4344150A (en) * 1980-07-10 1982-08-10 Newmont Mining Corporation Coherent noise cancelling filter
US4420815A (en) * 1981-05-18 1983-12-13 International Business Machines Corporation Apparatus and method for removal of sinusoidal noise from a sampled signal
JPS60104517U (ja) * 1983-12-22 1985-07-17 野村　健一 雨といの清掃装置
US6977611B1 (en) 1985-03-04 2005-12-20 Northrop Grumman Corporation FM-CW altimeter detector
US4730281A (en) * 1985-03-15 1988-03-08 Nl Industries, Inc. Data processing filtering method and apparatus
US4882668A (en) * 1987-12-10 1989-11-21 General Dynamics Corp., Pomona Division Adaptive matched filter
US4872127A (en) * 1988-01-07 1989-10-03 Magnetek, Inc. Ripple rejection filter
US4983978A (en) * 1989-03-21 1991-01-08 United Technologies Corporation Multi-frequency comb generator for radar and the like
US5061934A (en) * 1990-11-09 1991-10-29 The United States Of America As Represented By The Secretary Of The Air Force Hybrid clutter cancellation method and system for improved radar performance
US5247474A (en) * 1991-04-18 1993-09-21 Fujitsu Ten Limited Coefficients setting method of a reverberation unit
US5392042A (en) * 1993-08-05 1995-02-21 Martin Marietta Corporation Sigma-delta analog-to-digital converter with filtration having controlled pole-zero locations, and apparatus therefor
US5870051A (en) * 1995-08-14 1999-02-09 William K. Warburton Method and apparatus for analog signal conditioner for high speed, digital x-ray spectrometer
US5873054A (en) * 1995-08-14 1999-02-16 William K. Warburton Method and apparatus for combinatorial logic signal processor in a digitally based high speed x-ray spectrometer
DE19810719C2 (de) * 1998-03-12 2003-07-31 Daimler Chrysler Ag Verfahren zur Verbesserung der Störfestigkeit bei Empfängern für Satellitennavigation
EP1116960A1 (en) * 1999-07-22 2001-07-18 Kabushiki Kaisha Toyota Chuo Kenkyusho Radar device
US7091894B2 (en) * 2004-06-12 2006-08-15 L-3 Integrated Systems Company Systems and methods for analog to digital conversion
US6956517B1 (en) * 2004-06-12 2005-10-18 L-3 Integrated Systems Company Systems and methods for multi-channel analog to digital conversion
US6867732B1 (en) * 2004-08-10 2005-03-15 Chung Shan Institute Of Science And Technology, Armanents Bureau, M.N.D. Embedded multi-functional preprocessing input data buffer in radar system
US9488478B2 (en) * 2008-06-02 2016-11-08 The Boeing Company Methods and systems for visual flight rule (VFR) chart generation
US20100098216A1 (en) * 2008-10-17 2010-04-22 Moxtek, Inc. Noise Reduction In Xray Emitter/Detector Systems
US8078130B2 (en) * 2008-12-23 2011-12-13 L-3 Communications Integrated Systems L.P. Systems and methods for interference cancellation
US8081946B2 (en) * 2008-12-23 2011-12-20 L-3 Communications Integrated Systems L.P. Interference cancellation for reconfigurable direct RF bandpass sampling interference cancellation
US8247971B1 (en) 2009-03-19 2012-08-21 Moxtek, Inc. Resistively heated small planar filament
US8135372B2 (en) * 2009-09-08 2012-03-13 Bae Systems Information And Elecronic Systems Integration Inc. Integrated cancellation circuit for RF converter spurious tones
US7983394B2 (en) 2009-12-17 2011-07-19 Moxtek, Inc. Multiple wavelength X-ray source
US8526574B2 (en) 2010-09-24 2013-09-03 Moxtek, Inc. Capacitor AC power coupling across high DC voltage differential
US8995621B2 (en) 2010-09-24 2015-03-31 Moxtek, Inc. Compact X-ray source
US8804910B1 (en) 2011-01-24 2014-08-12 Moxtek, Inc. Reduced power consumption X-ray source
US8750458B1 (en) 2011-02-17 2014-06-10 Moxtek, Inc. Cold electron number amplifier
US8792619B2 (en) 2011-03-30 2014-07-29 Moxtek, Inc. X-ray tube with semiconductor coating
US8817950B2 (en) 2011-12-22 2014-08-26 Moxtek, Inc. X-ray tube to power supply connector
US8761344B2 (en) 2011-12-29 2014-06-24 Moxtek, Inc. Small x-ray tube with electron beam control optics
US9173623B2 (en) 2013-04-19 2015-11-03 Samuel Soonho Lee X-ray tube and receiver inside mouth
CN112422105B (zh) * 2020-10-27 2021-07-16 中国人民解放军海军工程大学 一种仿生梳状滤波器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177349A (en) * 1960-10-31 1965-04-06 Mcdonnell Aircraft Corp Filter network
US3303335A (en) * 1963-04-25 1967-02-07 Cabell N Pryor Digital correlation system having an adjustable impulse generator
US3404399A (en) * 1966-04-22 1968-10-01 Hughes Aircraft Co Digital clutter rejection system
US3422435A (en) * 1966-12-05 1969-01-14 Texas Instruments Inc Digital integrator
US3789199A (en) * 1972-05-01 1974-01-29 Bell Telephone Labor Inc Signal mode converter and processor

Also Published As

Publication number Publication date
NL7416772A (nl) 1975-07-18
JPS5531907B2 (nl) 1980-08-21
US3894219A (en) 1975-07-08
JPS50104892A (nl) 1975-08-19
DE2501201A1 (de) 1975-09-04
NL182267B (nl) 1987-09-01
DE2501201C2 (de) 1986-06-26
FR2258057A1 (nl) 1975-08-08

Similar Documents

Publication Publication Date Title
NL182267C (nl) Hybridisch analoog en digitaal kamfilter voor het opheffen van stoorcomponenten.
NL7506745A (nl) Werkwijze voor het bereiden van analoge daunomy- cine verbindingen.
NL7515193A (nl) Werkwijze voor het bereiden van bis-indoolverbin- dingen.
BE826889A (nl) Werkwijze voor het stabiliseren van interferon
NL7500471A (nl) Verbeterde bekledingsartikelen en werkwijzen voor het vervaardigen van deze artikelen.
BE832015A (nl) Werkwijze voor het bereiden van 7-methoxy-6-thiatetracyclinen
BE828194A (fr) Inrichting en werkwijze voor het scheiden van vlees van botten en dergelijke
NL7509095A (nl) Werkwijze voor het bereiden van ketonen.
NL7501613A (nl) Werkwijze voor het bereiden van analoge aglandinen.
NL7405599A (nl) Werkwijze voor het bereiden van thiazoolver- bindin
NL7500979A (nl) Werkwijze voor het bereiden van gemodificeerde opolysiloxanen.
NL7500818A (nl) Laagdoorlaatfilter voor hyperfrekwentie.
NL7501179A (nl) Werkwijze voor het bereiden van (beta)-alkoxyboter- lkylester.
NL7509433A (nl) Werkwijze voor het bereiden van diaminonafta- leen.
NL7512383A (nl) Werkwijze voor het bereiden van 2-deutero-3-fluor- -dl-alanine.
NL7512736A (nl) Werkwijze voor het bereiden van halogeenantrachi- nonen.
NL7500342A (nl) Werkwijze voor het veranderen van de organo- leptische eigenschappen van tabak.
NL7505460A (nl) Werkwijzen voor het bereiden en toepassen van heterocyclische verbindingen.
BE835353A (nl) Werkwijze voor het zuiveren van cyanuur/uur
NL7502125A (nl) Werkwijze voor het bereiden van nonylaminen.
NL7511178A (nl) Werkwijzen voor het bereiden en toepassen van heterocyclische verbindingen.
NL7501178A (nl) Werkwijze voor het bereiden van glycolether- len.
NL7502483A (nl) Werkwijze voor het bereiden van 1-amino-anthra- chinon.
NL7503304A (nl) Werkwijze voor het zuiveren van fosfatiden.
NL7504330A (nl) Werkwijzen voor het bereiden en toepassen van heterocyclische verbindingen.

Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee