WO2010074790A3 - Method and system for target detection and angle estimation based on a radar signal - Google Patents

Method and system for target detection and angle estimation based on a radar signal Download PDF

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Publication number
WO2010074790A3
WO2010074790A3 PCT/US2009/059551 US2009059551W WO2010074790A3 WO 2010074790 A3 WO2010074790 A3 WO 2010074790A3 US 2009059551 W US2009059551 W US 2009059551W WO 2010074790 A3 WO2010074790 A3 WO 2010074790A3
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WO
WIPO (PCT)
Prior art keywords
monopulse
target
angle
target detection
estimation based
Prior art date
Application number
PCT/US2009/059551
Other languages
French (fr)
Other versions
WO2010074790A2 (en
Inventor
Kai-Bor Yu
Original Assignee
Lockheed Martin Corporation
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 Lockheed Martin Corporation filed Critical Lockheed Martin Corporation
Publication of WO2010074790A2 publication Critical patent/WO2010074790A2/en
Publication of WO2010074790A3 publication Critical patent/WO2010074790A3/en

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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
    • G01S13/06—Systems determining position data of a target
    • G01S13/42—Simultaneous measurement of distance and other co-ordinates
    • G01S13/44—Monopulse radar, i.e. simultaneous lobing
    • G01S13/4463—Monopulse radar, i.e. simultaneous lobing using phased arrays

Abstract

A method for target detection and angle estimation in a radar system includes receiving a signal from a radar array; based on the received signal, performing monopulse beamforming to obtain one or more monopulse beams; based on the monopulse beams, determining monopulse ratios; using maximum likelihood estimation based on the determined monopulse ratios to determine a monopulse ratio estimate corresponding to a maximum of a likelihood function; accessing a table correlating monopulse ratio estimates and target angle values and determining from the table an estimated target angle; accessing a complex target amplitude corresponding to the estimated target angle, comparing the complex target amplitude to a threshold; and if, based on the step of comparing, the target amplitude exceeds the threshold, providing an output signal indicative of target detection and the estimated target angle.
PCT/US2009/059551 2008-10-03 2009-10-05 Method and system for target detection and angle estimation based on a radar signal WO2010074790A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/245,381 2008-10-03
US12/245,381 US7671789B1 (en) 2008-10-03 2008-10-03 Method and system for target detection and angle estimation based on a radar signal

Publications (2)

Publication Number Publication Date
WO2010074790A2 WO2010074790A2 (en) 2010-07-01
WO2010074790A3 true WO2010074790A3 (en) 2010-10-14

Family

ID=41717634

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/059551 WO2010074790A2 (en) 2008-10-03 2009-10-05 Method and system for target detection and angle estimation based on a radar signal

Country Status (2)

Country Link
US (1) US7671789B1 (en)
WO (1) WO2010074790A2 (en)

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KR101239165B1 (en) 2012-03-07 2013-03-05 국방과학연구소 Method and apparatus for estimating target direction
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US9502766B2 (en) * 2014-07-25 2016-11-22 Raytheon Company Electronically reconfigurable, piecewise-linear, scalable analog monopulse network
RU2572843C1 (en) * 2014-08-05 2016-01-20 Акционерное общество "Федеральный научно-производственный центр "Нижегородский научно-исследовательский институт радиотехники" (АО "ФНПЦ "ННИИРТ") Method of improving characteristics of measuring azimuth of ground targets based on reflections from underlying surface
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RU2611434C1 (en) * 2016-04-26 2017-02-22 Акционерное общество "Федеральный научно-производственный центр "Нижегородский научно-исследовательский институт радиотехники" Method of space radar scanning
JP6745649B2 (en) * 2016-06-08 2020-08-26 キヤノン株式会社 Communication device, control method thereof, and program
CN106125039B (en) * 2016-06-14 2018-11-27 河海大学 Improvement space-time adaptive Monopulse estimation method based on local Combined Treatment
US10591591B1 (en) * 2017-01-31 2020-03-17 L-3 Communications Corp. Adaptive discovery and correction of phase alignment errors in monopulse antenna systems
RU2637817C1 (en) * 2017-02-20 2017-12-07 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" Method of determining distance to earth surface
CN108535698B (en) * 2018-04-04 2021-07-20 西安电子科技大学 Meter-wave radar low elevation angle estimation method based on beam space
CN108872961B (en) * 2018-06-28 2022-03-22 西安电子科技大学 Radar weak target detection method based on low threshold
CN111123250B (en) * 2019-12-30 2021-09-28 成都汇蓉国科微系统技术有限公司 Pulse Doppler radar based on pattern search algorithm and beam forming method
CN112578354B (en) * 2020-02-28 2024-02-23 加特兰微电子科技(上海)有限公司 Method for determining azimuth angle of target object, computer device and storage medium
JP2023099239A (en) * 2020-05-28 2023-07-12 住友電気工業株式会社 Radio wave sensor and object detection method
CN111812607B (en) * 2020-06-11 2024-03-26 西安电子科技大学 Meter wave MIMO radar low elevation angle estimation method based on beam space
CN113625265B (en) * 2021-06-30 2023-12-22 西安电子科技大学 Direction super-resolution method based on beam space
CN114970595B (en) * 2021-12-31 2023-04-18 北京理工大学 Single snapshot multi-target angle estimation method based on deep learning
CN115902814B (en) * 2023-03-09 2023-05-09 中国人民解放军国防科技大学 Method and device for evaluating performance of target recognition model based on information space measurement

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Publication number Priority date Publication date Assignee Title
RU2587466C1 (en) * 2015-03-03 2016-06-20 Открытое акционерное общество "Государственное машиностроительное конструкторское бюро "Вымпел" имени И.И. Торопова" Device for angular tracking

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WO2010074790A2 (en) 2010-07-01
US7671789B1 (en) 2010-03-02

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