BR0308287A - Sistema e método de detecção adaptáveis - Google Patents

Sistema e método de detecção adaptáveis

Info

Publication number
BR0308287A
BR0308287A BR0308287-3A BR0308287A BR0308287A BR 0308287 A BR0308287 A BR 0308287A BR 0308287 A BR0308287 A BR 0308287A BR 0308287 A BR0308287 A BR 0308287A
Authority
BR
Brazil
Prior art keywords
detection
detection system
target
amplitude
doppler
Prior art date
Application number
BR0308287-3A
Other languages
English (en)
Inventor
Reza Dizaji
Tony Ponsford
Original Assignee
Raytheon Canada Ltd
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 Raytheon Canada Ltd filed Critical Raytheon Canada Ltd
Publication of BR0308287A publication Critical patent/BR0308287A/pt

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
    • 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
    • G01S13/02—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
    • 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
    • G01S13/0209—Systems with very large relative bandwidth, i.e. larger than 10 %, e.g. baseband, pulse, carrier-free, ultrawideband
    • 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
    • G01S13/30—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using more than one pulse per radar period
    • 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
    • G01S7/28—Details of pulse systems
    • G01S7/285—Receivers
    • G01S7/288—Coherent receivers
    • G01S7/2883—Coherent receivers using FFT processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

"SISTEMA E MéTODO DE DETECçãO ADAPTáVEIS". A presente invenção refere-se a um sistema de detecção adaptável e método para analisar dados de distância-doppler-azimute para detecção de alvo. O sistema de detecção tem um calculador de limite para calcular um valor limite que se baseia no desvio padrão dos dados de distância-doppler-azimute e uma probabilidade predeterminada de detecção. O sistema de detecção tem também um módulo de detecção em comunicação com o calculador de limite para receber o valor limite. O módulo de detecção calcula uma amplitude alvo estimada e uma amplitude de piso de ruído estimada com base nos dados de distância-doppler que são localizados em uma janela de detecção. O módulo de detecção detecta um alvo quando a diferença entre a amplitude alvo estimada e a amplitude de piso de ruído estimada é maior do que o valor de limite.
BR0308287-3A 2002-03-13 2003-03-07 Sistema e método de detecção adaptáveis BR0308287A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US36356902P 2002-03-13 2002-03-13
US36519102P 2002-03-19 2002-03-19
PCT/US2003/006958 WO2003079046A1 (en) 2002-03-13 2003-03-07 An adaptive system and method for radar detection

Publications (1)

Publication Number Publication Date
BR0308287A true BR0308287A (pt) 2005-01-11

Family

ID=28045313

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0308287-3A BR0308287A (pt) 2002-03-13 2003-03-07 Sistema e método de detecção adaptáveis

Country Status (13)

Country Link
US (1) US6717545B2 (pt)
EP (1) EP1485730B1 (pt)
JP (1) JP2005520161A (pt)
KR (1) KR20040091699A (pt)
CN (1) CN1643398A (pt)
AT (1) ATE304179T1 (pt)
AU (1) AU2003213762A1 (pt)
BR (1) BR0308287A (pt)
DE (1) DE60301564T2 (pt)
ES (1) ES2248735T3 (pt)
NO (1) NO20044023L (pt)
RU (1) RU2004130472A (pt)
WO (1) WO2003079046A1 (pt)

Families Citing this family (85)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7667647B2 (en) 1999-03-05 2010-02-23 Era Systems Corporation Extension of aircraft tracking and positive identification from movement areas into non-movement areas
US7570214B2 (en) 1999-03-05 2009-08-04 Era Systems, Inc. Method and apparatus for ADS-B validation, active and passive multilateration, and elliptical surviellance
US7782256B2 (en) 1999-03-05 2010-08-24 Era Systems Corporation Enhanced passive coherent location techniques to track and identify UAVs, UCAVs, MAVs, and other objects
US7889133B2 (en) 1999-03-05 2011-02-15 Itt Manufacturing Enterprises, Inc. Multilateration enhancements for noise and operations management
US7777675B2 (en) 1999-03-05 2010-08-17 Era Systems Corporation Deployable passive broadband aircraft tracking
US7908077B2 (en) 2003-06-10 2011-03-15 Itt Manufacturing Enterprises, Inc. Land use compatibility planning software
US7739167B2 (en) 1999-03-05 2010-06-15 Era Systems Corporation Automated management of airport revenues
US8203486B1 (en) 1999-03-05 2012-06-19 Omnipol A.S. Transmitter independent techniques to extend the performance of passive coherent location
US8446321B2 (en) 1999-03-05 2013-05-21 Omnipol A.S. Deployable intelligence and tracking system for homeland security and search and rescue
SE519089C2 (sv) * 2001-05-11 2003-01-07 Totalfoersvarets Forskningsins System för att med från mål spridda signaler bestämma lägen och hastigheter för målen
US6867728B1 (en) * 2003-11-06 2005-03-15 Lockheed Martin Corporation Methods and systems for identifying signals-of-interest
US6897802B1 (en) * 2003-11-10 2005-05-24 Raytheon Company Fusion of shape and multiscale features for unknown target rejection
US7642951B2 (en) * 2004-11-12 2010-01-05 James Onorato Dual channel spatially adaptive CFAR
US7683827B2 (en) 2004-12-15 2010-03-23 Valeo Radar Systems, Inc. System and method for reducing the effect of a radar interference signal
US7646886B2 (en) 2005-05-11 2010-01-12 Lockheed Martin Corporation Closely-spaced multiple targets detection using a regional window as a discriminant function
US7298316B2 (en) * 2005-12-19 2007-11-20 Chung Shan Institute Of Science And Technology, Armaments Bureau M.N.D. Apparatus and method for instantly automatic detecting clutter blocks and interference source and for dynamically establishing clutter map
US7336219B1 (en) * 2005-12-30 2008-02-26 Valeo Raytheon Systems, Inc. System and method for generating a radar detection threshold
US7965227B2 (en) 2006-05-08 2011-06-21 Era Systems, Inc. Aircraft tracking using low cost tagging as a discriminator
US8330647B2 (en) * 2006-06-08 2012-12-11 Vista Research, Inc. Sensor suite and signal processing for border surveillance
US7477181B2 (en) * 2007-02-14 2009-01-13 Delphi Technologies, Inc. Method of adaptively adjusting the target detection sensitivity of a motor vehicle radar
JP4356758B2 (ja) * 2007-03-20 2009-11-04 株式会社デンソー Ｆｍｃｗレーダ
JP2008256626A (ja) * 2007-04-09 2008-10-23 Furuno Electric Co Ltd 自動利得制御装置
GB2451242A (en) * 2007-07-23 2009-01-28 Thales Holdings Uk Plc Signal processing system for pulse doppler radar
KR100780470B1 (ko) * 2007-08-21 2007-11-28 (주)미래시스템 탐색 레이더의 적응적 표적 탐지장치
GB2452390B (en) * 2007-08-31 2011-10-05 Furuno Electric Co Radar device
JP5398195B2 (ja) * 2007-08-31 2014-01-29 古野電気株式会社 レーダ装置
US7675456B2 (en) * 2007-10-11 2010-03-09 Northrop Grumman Corporation Technique for mitigating multipath impacts on azimuth accuracy in a monopulse interrogator
FR2931952B1 (fr) * 2008-05-30 2010-06-11 Thales Sa Procede d'elimination des echos de sol pour un radar meteorologique
EP2374024B1 (en) * 2008-12-12 2015-10-14 BAE Systems PLC High frequency surfacewave radar
KR100998538B1 (ko) 2009-01-05 2010-12-07 국방과학연구소 다중 분리 레이더 탐지 장치 및 표적 탐지 방법
US8004451B2 (en) * 2009-05-27 2011-08-23 Honeywell International Inc. Adaptive microwave security sensor
JP2011002425A (ja) * 2009-06-22 2011-01-06 Furuno Electric Co Ltd レーダ装置
JP4977806B2 (ja) 2010-08-09 2012-07-18 パナソニック株式会社 レーダイメージング装置、イメージング方法及びそのプログラム
CN102169175B (zh) * 2010-12-08 2012-12-26 关键 基于frft域非相参积累的海杂波抑制和动目标检测方法
KR101150259B1 (ko) 2010-12-15 2012-06-12 한국과학기술원 다중분리 레이더에서의 이동 표적 위치 추적 방법 및 장치와 이동 표적 위치 추적 방법을 실행하기 위한 프로그램이 기록된 기록매체
US8412139B2 (en) * 2011-01-10 2013-04-02 Telefonaktiebolaget L M Ericsson (Publ) Methods of receiving multiple carriers using different RF mixer frequencies and related communications devices and receivers
KR101041990B1 (ko) * 2011-03-15 2011-06-16 (주)미래시스템 레이더 모의표적장치의 도플러 주파수 구현방법
CA2774377C (en) * 2012-02-02 2017-05-02 Raytheon Canada Limited Knowledge aided detector
US10393869B2 (en) * 2012-11-05 2019-08-27 Technion Research & Development Foundation Ltd. Sub-Nyquist radar processing using doppler focusing
US9250317B1 (en) 2012-12-20 2016-02-02 Raytheon Canada Limited Methods and apparatus for 3D radar data from 2D primary surveillance radar and passive adjunct radar
US8976059B2 (en) * 2012-12-21 2015-03-10 Raytheon Canada Limited Identification and removal of a false detection in a radar system
US9638793B2 (en) 2013-01-15 2017-05-02 Raytheon Canada Limited Virtual antenna extension for sampled aperture arrays
RU2533659C1 (ru) * 2013-04-09 2014-11-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Самарский государственный технический университет Автономное радиолокационное устройство селекции воздушной цели
CN103308910B (zh) * 2013-05-11 2015-02-04 国家海洋局第一海洋研究所 利用高频地波雷达检测海上非航行状态船只目标的方法
US9594159B2 (en) * 2013-07-15 2017-03-14 Texas Instruments Incorporated 2-D object detection in radar applications
GB201320369D0 (en) * 2013-11-19 2014-01-01 Secr Defence A method of assessing sensor performance
CN103760543B (zh) * 2014-01-10 2016-09-07 杭州电子科技大学 一种基于多模式的恒虚警目标检测方法
CN103901395B (zh) * 2014-03-28 2016-08-17 哈尔滨工程大学 一种冲击噪声环境下相干信号波达方向动态跟踪方法
KR101598208B1 (ko) * 2014-05-20 2016-02-26 현대모비스 주식회사 레이더를 이용한 타겟 검출 장치 및 방법
US9746549B1 (en) * 2014-07-11 2017-08-29 Altera Corporation Constant false alarm rate circuitry in adaptive target detection of radar systems
JP6392152B2 (ja) * 2015-03-24 2018-09-19 パナソニック株式会社 レーダ装置および走行車両検知方法
CN105353358B (zh) * 2015-10-28 2017-09-12 北京理工大学 一种基于索引差分的通用雷达脉冲信号提取方法
CN105425230A (zh) * 2015-11-11 2016-03-23 西安电子科技大学 逆高斯纹理复合高斯杂波下距离扩展目标自适应检测方法
RU2609144C1 (ru) * 2015-12-29 2017-01-30 Акционерное общество "Научно-исследовательский институт Приборостроения имени В.В. Тихомирова" Радиолокационная станция
RU2610304C1 (ru) * 2016-03-01 2017-02-09 Акционерное общество "НИИ измерительных приборов - Новосибирский завод имени Коминтерна" (АО "НПО НИИИП-НЗиК") Способ обнаружения радиолокационных сигналов и радиолокационная станция для его осуществления
FR3051611B1 (fr) * 2016-05-20 2018-06-29 Thales Procede de traitement d'un signal forme d'une sequence d'impulsions
US10302740B2 (en) * 2016-08-17 2019-05-28 Raytheon Company System and method for fast adaptive range doppler compression
WO2018063162A1 (en) * 2016-09-27 2018-04-05 Halliburton Energy Services, Inc. Calibration of electromagnetic ranging tools
IL267810B (en) * 2017-01-06 2022-11-01 Aurora Flight Sciences Corp Collision avoidance system and method for an unmanned aircraft
US10705202B2 (en) * 2017-01-19 2020-07-07 GM Global Technology Operations LLC Iterative approach to achieve angular ambiguity resolution
JP6839549B2 (ja) * 2017-01-27 2021-03-10 古河電気工業株式会社 レーダ装置およびレーダ装置の制御方法
JP6838658B2 (ja) * 2017-07-04 2021-03-03 日本電気株式会社 物体検知装置、物体検知方法、及びプログラム
US10845475B2 (en) * 2018-07-30 2020-11-24 National Chung Shan Institute Of Science And Technology Method of measuring azimuth of radar target
US11971507B2 (en) 2018-08-24 2024-04-30 Velodyne Lidar Usa, Inc. Systems and methods for mitigating optical crosstalk in a light ranging and detection system
US20210396869A1 (en) * 2018-10-02 2021-12-23 Nec Corporation Ship detection system, method, and program
CN109471072B (zh) * 2018-11-07 2020-11-06 中国人民解放军国防科技大学 基于fpga的单脉冲雷达二维cfar检测方法及系统
CN109799488B (zh) * 2019-01-10 2022-07-15 中国人民解放军海军航空大学 一种非参数搜索的雷达机动目标长时间相参积累方法
CN109581318B (zh) * 2019-01-10 2022-07-15 中国人民解放军海军航空大学 基于时间反转非均匀采样的雷达高机动目标相参积累检测方法
JP7134886B2 (ja) * 2019-01-17 2022-09-12 株式会社東芝 表面波レーダ装置
CN110109067B (zh) * 2019-05-06 2022-11-04 西安思丹德信息技术有限公司 一种陆基fmcw区域监控雷达数据处理方法
US11143747B2 (en) * 2019-07-11 2021-10-12 GM Global Technology Operations LLC Methods and systems for classifying received signals from radar system
WO2021077287A1 (zh) * 2019-10-22 2021-04-29 华为技术有限公司 一种检测方法、检测装置以及存储介质
CN111157954B (zh) * 2019-12-18 2023-07-18 南京理工大学 地面雷达目标检测门限系数自适应调整方法
CN111610515A (zh) * 2020-03-31 2020-09-01 宁波锐眼电子科技有限公司 检测方法、装置、毫米波雷达和计算机可读存储介质
US11874394B2 (en) * 2020-04-02 2024-01-16 Rockwell Collins, Inc. System and method for improving signal qualification
CN111522010B (zh) * 2020-06-04 2022-02-11 四川九洲电器集团有限责任公司 汽车防撞雷达信号处理方法和系统
CN111830481B (zh) * 2020-07-09 2023-03-07 中国人民解放军海军航空大学 雷达回波单分量幅度分布模型参数估计方法及装置
CN111983595B (zh) * 2020-07-14 2023-11-10 北京航空航天大学杭州创新研究院 一种室内定位的方法及装置
WO2022029865A1 (ja) * 2020-08-04 2022-02-10 三菱電機株式会社 信号処理装置、レーダ及びレーダ信号処理方法
KR102243132B1 (ko) * 2020-10-30 2021-04-22 두온 시스템 (주) 화이트 노이즈가 발생되더라도 대상을 정밀하게 탐색할 수 있는 펄스 레이더 시스템
US11927689B2 (en) * 2020-11-17 2024-03-12 Texas Instruments Incorporated CFAR OS detection hardware with two sets of comparators
CN112882018B (zh) * 2021-01-13 2022-07-26 哈尔滨工业大学（威海） 一种海洋和电离层一体化探测高频雷达系统及其控制方法
CN113504523B (zh) * 2021-07-20 2023-08-01 成都航空职业技术学院 基于目标特性的自适应恒虚警方法、设备及其存储介质
CN114660585B (zh) * 2022-02-18 2023-08-01 加特兰微电子科技(上海)有限公司 噪底估计值的确定方法、装置、电子设备和存储介质
CN117348011B (zh) * 2023-09-26 2024-09-17 宁波大学 一种快速校正sar径向流速反演海表流场的方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422074A (en) * 1965-05-26 1983-12-20 Hughes Aircraft Company Signal skimming system
US3761922A (en) * 1971-10-12 1973-09-25 Hughes Aircraft Co Digital mean level detector
US4031364A (en) * 1975-11-10 1977-06-21 Hughes Aircraft Company Multiple moment video detector
US4079376A (en) * 1976-03-09 1978-03-14 Westinghouse Electric Corporation Target detection system in a medium PRF pulse doppler search/track radar receiver
US4089002A (en) * 1977-04-05 1978-05-09 The Bendix Corporation CFAR threshold adaptive target coordinate extractor
US4104633A (en) * 1977-04-18 1978-08-01 International Telephone And Telegraph Corporation Extended target-log CFAR processor
US4213127A (en) * 1979-01-31 1980-07-15 The United States Of America As Represented By The Secretary Of The Air Force Doubly adaptive CFAR apparatus
US4542381A (en) * 1982-10-05 1985-09-17 Motorola, Inc. Adaptive window CFAR apparatus
US4713664A (en) * 1985-05-24 1987-12-15 Westinghouse Electric Corp. Point clutter threshold determination for radar systems
US4845500A (en) 1988-03-25 1989-07-04 Sperry Marine Inc. Radar video detector and target tracker
US5038145A (en) * 1989-11-20 1991-08-06 Westinghouse Electric Corp. Constant false alarm rate with low probability of false alarms
FR2682485B1 (fr) * 1991-10-11 1993-12-10 Thomson Csf Procede de reduction des fausses alarmes dans un radar.
US5465095A (en) 1994-08-05 1995-11-07 The United States Of America As Represented By The Secretary Of The Air Force Time efficient method for processing adaptive target detection thresholds in doppler radar systems
US5546089A (en) * 1995-08-10 1996-08-13 The United States Of America As Represented By The Secretary Of The Air Force Optical monopulse chirp processor
DE19738252C2 (de) 1997-09-02 2002-07-11 Eads Deutschland Gmbh Verfahren zur Detektion eines Radarzieles
US6999541B1 (en) 1998-11-13 2006-02-14 Bitwave Pte Ltd. Signal processing apparatus and method
US6259396B1 (en) * 1999-08-26 2001-07-10 Raytheon Company Target acquisition system and radon transform based method for target azimuth aspect estimation
US6252540B1 (en) * 1999-12-21 2001-06-26 The United States Of America As Represented By The Secretary Of The Air Force Apparatus and method for two stage hybrid space-time adaptive processing in radar and communication systems

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WO2003079046A9 (en) 2004-09-30
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AU2003213762A1 (en) 2003-09-29
EP1485730A1 (en) 2004-12-15
ATE304179T1 (de) 2005-09-15
JP2005520161A (ja) 2005-07-07
CN1643398A (zh) 2005-07-20
EP1485730B1 (en) 2005-09-07
US6717545B2 (en) 2004-04-06
NO20044023L (no) 2004-12-09
DE60301564D1 (de) 2005-10-13
DE60301564T2 (de) 2006-06-14
KR20040091699A (ko) 2004-10-28
ES2248735T3 (es) 2006-03-16

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