NO146688C - Anlegg for aa skille ut sanne maalekkosignaler i en pulsdopplerradarmottager. - Google Patents
Anlegg for aa skille ut sanne maalekkosignaler i en pulsdopplerradarmottager.Info
- Publication number
- NO146688C NO146688C NO770810A NO770810A NO146688C NO 146688 C NO146688 C NO 146688C NO 770810 A NO770810 A NO 770810A NO 770810 A NO770810 A NO 770810A NO 146688 C NO146688 C NO 146688C
- Authority
- NO
- Norway
- Prior art keywords
- installations
- doppler radar
- radar receiver
- pulse doppler
- true target
- Prior art date
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
- G01S13/66—Radar-tracking systems; Analogous systems
- G01S13/70—Radar-tracking systems; Analogous systems for range tracking only
-
- 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
- G01S13/20—Systems for measuring distance only using transmission of interrupted, pulse modulated waves whereby multiple time-around echoes are used or eliminated
-
- 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
- G01S13/5242—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 with means for platform motion or scan motion compensation, e.g. airborne 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
- G01S13/50—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
- 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
- G01S13/528—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 with elimination of blind speeds
-
- 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
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S13/585—Velocity or trajectory determination systems; Sense-of-movement determination systems processing the video signal in order to evaluate or display the velocity value
- G01S13/586—Velocity or trajectory determination systems; Sense-of-movement determination systems processing the video signal in order to evaluate or display the velocity value using, or combined with, frequency tracking means
-
- 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
- G01S13/66—Radar-tracking systems; Analogous systems
-
- 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
- G01S7/2813—Means providing a modification of the radiation pattern for cancelling noise, clutter or interfering signals, e.g. side lobe suppression, side lobe blanking, null-steering arrays
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/665,348 US4079376A (en) | 1976-03-09 | 1976-03-09 | Target detection system in a medium PRF pulse doppler search/track radar receiver |
Publications (3)
Publication Number | Publication Date |
---|---|
NO770810L NO770810L (no) | 1977-09-12 |
NO146688B NO146688B (no) | 1982-08-09 |
NO146688C true NO146688C (no) | 1982-11-17 |
Family
ID=24669757
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO770810A NO146688C (no) | 1976-03-09 | 1977-03-08 | Anlegg for aa skille ut sanne maalekkosignaler i en pulsdopplerradarmottager. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4079376A (fr) |
BE (1) | BE852119A (fr) |
DK (1) | DK149370C (fr) |
NL (1) | NL7702213A (fr) |
NO (1) | NO146688C (fr) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4208632A (en) * | 1978-06-30 | 1980-06-17 | Raytheon Company | Radar receiver |
US4315325A (en) * | 1980-07-02 | 1982-02-09 | Purecycle Corporation | Echo ranging pulse discrimination circuit |
US4450446A (en) * | 1981-05-29 | 1984-05-22 | Westinghouse Electric Corp. | Method and system for tracking targets in a pulse doppler radar system |
GB2187605B (en) * | 1986-03-07 | 1990-05-09 | Plessey Co Plc | Radar system |
US4973968A (en) * | 1986-03-07 | 1990-11-27 | Plessey Overseas Limited | Radar system for determining first time around targets from multiple time around targets |
GB8627332D0 (en) * | 1986-11-14 | 1987-03-18 | Marconi Co Ltd | Radar system |
US6229475B1 (en) * | 1987-04-27 | 2001-05-08 | Raytheon Company | Pulse doppler radar system with improved cluster target resolution capability |
JPH0672920B2 (ja) * | 1987-05-14 | 1994-09-14 | 日本電気株式会社 | レーダ装置 |
US4975889A (en) * | 1988-06-16 | 1990-12-04 | Petrucelli Steven P | Acoustic ranging apparatus and method |
US5047778A (en) * | 1990-10-11 | 1991-09-10 | The Boeing Company | FMCW radar range tracker and method |
JP2967672B2 (ja) * | 1993-07-28 | 1999-10-25 | 三菱電機株式会社 | レーダ信号処理装置 |
US5396252A (en) * | 1993-09-30 | 1995-03-07 | United Technologies Corporation | Multiple target discrimination |
JP3256245B2 (ja) * | 1997-10-30 | 2002-02-12 | レイセオン・カンパニー | ターゲット追跡システム |
US6052421A (en) * | 1998-09-28 | 2000-04-18 | Northrop Grumman Corporation | Method for separating a desired signal from an interfering signal |
US6717545B2 (en) * | 2002-03-13 | 2004-04-06 | Raytheon Canada Limited | Adaptive system and method for radar detection |
US20070230643A1 (en) * | 2006-03-20 | 2007-10-04 | Harris Corporation | Track State - And Received Noise Power-Based Mechanism For Selecting Demodulator Processing Path In Spatial Diversity, Multi-Demodulator Receiver System |
US20070217555A1 (en) * | 2006-03-20 | 2007-09-20 | Harris Corporation | Knowledge-Aided CFAR Threshold Adjustment For Signal Tracking |
US8026844B2 (en) * | 2006-06-08 | 2011-09-27 | Vista Research, Inc. | Radar visibility model |
US7518547B2 (en) * | 2007-07-16 | 2009-04-14 | Honeywell International Inc. | Method and system of interference detection for radar altimeters |
US7714770B2 (en) * | 2007-07-16 | 2010-05-11 | Honeywell International Inc. | Filtering NAGC response to noise spikes |
JP2011145069A (ja) * | 2010-01-12 | 2011-07-28 | Furuno Electric Co Ltd | 偽像低減装置、レーダ装置、偽像低減方法、および偽像低減プログラム |
GB201006503D0 (en) * | 2010-04-19 | 2010-06-02 | Cambridge Consultants | Radar filter |
JP5768436B2 (ja) * | 2011-03-28 | 2015-08-26 | 日本電気株式会社 | ビーム管理装置及びこれを備えたレーダ装置並びにビーム管理方法及びプログラム |
CN104076354B (zh) * | 2014-07-08 | 2017-01-18 | 西安电子科技大学 | 一种基于关联速度的雷达目标航迹的检测方法 |
CN110556005B (zh) * | 2019-10-11 | 2023-01-10 | 成都纳雷科技有限公司 | 交通测速系统中用于提高捕获率的自适应跟踪方法及系统 |
CN111123212B (zh) * | 2019-12-11 | 2023-11-17 | 安徽四创电子股份有限公司 | 一种基于复杂杂波背景下的场面监视雷达的信号处理方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3023409A (en) * | 1956-03-09 | 1962-02-27 | Westinghouse Electric Corp | Pulse doppler radar system |
US3113308A (en) * | 1956-06-18 | 1963-12-03 | Gen Precision Inc | Apparatus for measuring doppler frequency differences |
US3404399A (en) * | 1966-04-22 | 1968-10-01 | Hughes Aircraft Co | Digital clutter rejection system |
US3587097A (en) * | 1966-12-05 | 1971-06-22 | Westinghouse Electric Corp | Signal retrieval system with continuous control of detection threshold level |
US3707718A (en) * | 1969-02-18 | 1972-12-26 | Westinghouse Electric Corp | Radar system |
US3701149A (en) * | 1971-07-02 | 1972-10-24 | Us Navy | Frequency averaging controlled false alarm rate (cfar) circuit |
US3721977A (en) * | 1971-08-26 | 1973-03-20 | Singer Co | Image beam lock-on detector |
US3797016A (en) * | 1972-08-04 | 1974-03-12 | Westinghouse Electric Corp | Digital moving target indicator radar system incorporating modulo-n components |
US3949398A (en) * | 1974-12-16 | 1976-04-06 | International Telephone And Telegraph Corporation | MTI performance enhancement device with instantaneous automatic gain control |
-
1976
- 1976-03-09 US US05/665,348 patent/US4079376A/en not_active Expired - Lifetime
-
1977
- 1977-03-02 NL NL7702213A patent/NL7702213A/xx unknown
- 1977-03-04 BE BE175499A patent/BE852119A/fr not_active IP Right Cessation
- 1977-03-08 DK DK101777A patent/DK149370C/da not_active IP Right Cessation
- 1977-03-08 NO NO770810A patent/NO146688C/no unknown
Also Published As
Publication number | Publication date |
---|---|
DK149370C (da) | 1986-11-03 |
BE852119A (fr) | 1977-09-05 |
DK101777A (da) | 1977-09-10 |
NO146688B (no) | 1982-08-09 |
DK149370B (da) | 1986-05-20 |
NO770810L (no) | 1977-09-12 |
NL7702213A (nl) | 1977-09-13 |
US4079376A (en) | 1978-03-14 |
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