RU2018144308A - Method for spatio-temporal adaptive signal processing in monopulse ship radar with active phased array - Google Patents

Method for spatio-temporal adaptive signal processing in monopulse ship radar with active phased array Download PDF

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RU2018144308A
RU2018144308A RU2018144308A RU2018144308A RU2018144308A RU 2018144308 A RU2018144308 A RU 2018144308A RU 2018144308 A RU2018144308 A RU 2018144308A RU 2018144308 A RU2018144308 A RU 2018144308A RU 2018144308 A RU2018144308 A RU 2018144308A
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Prior art keywords
signal processing
adaptive
processing
afar
stage
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RU2018144308A
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Russian (ru)
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RU2735216C2 (en
RU2018144308A3 (en
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Валентин Иванович Аржаев
Максим Александрович Лихачев
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Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России)
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    • 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
    • G01S13/26—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave
    • G01S13/28—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses
    • 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
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • H01Q3/2611—Means for null steering; Adaptive interference nulling

Claims (4)

1. Способ пространственно-временной адаптивной обработки сигналов в моноимпульсной корабельной радиолокационной станции с активной фазированной антенной решеткой (АФАР), характеризующийся тем, что, с помощью АФАР принимают радиосигналы от цели на фоне активных и пассивных помех, преобразуют принятые сигналы в цифровую форму, далее осуществляют адаптивную двухступенчатую пространственно-временную обработку цифровых сигналов одновременно по суммарным и разностным каналам, их пороговую обработку и обнаружение цели на фоне помех, причем на первой ступени адаптивной обработки проводят обработку сигналов «активная помеха плюс шум», принятых элементами АФАР и свободных от сигналов пассивных отражений, далее формируют пространственно-ковариационную матрицу «Ф» обработанных сигналов, по данным матрицы «Ф» формируют в цифровой форме адаптивную диаграмму направленности (ДН) АФАР с созданием глубоких нулей в направлении активных помех, затем на второй ступени адаптивной обработки сигналов подавляют пассивные помехи путем допплеровской фильтрации и многооконной обработки сигналов адаптивной ДН АФАР, сформированной на первой ступени обработки сигналов.1. The method of spatio-temporal adaptive signal processing in a monopulse ship radar with an active phased array (AFAR), characterized in that, using AFAR, receive radio signals from the target against the background of active and passive interference, convert the received signals to digital form, then they carry out adaptive two-stage spatio-temporal processing of digital signals simultaneously over the sum and difference channels, their threshold processing and target detection against the background of interference, and at the first stage of adaptive processing they process signals “active interference plus noise” received by AFAR elements and free from passive signals of reflections, then form the spatial-covariance matrix “F” of the processed signals, according to the data of the matrix “F”, an adaptive radiation pattern (AF) of the AFAR is generated digitally with the creation of deep zeros in the direction of active noise, then I suppress the second stage of adaptive signal processing t passive interference by Doppler filtering and multi-window signal processing of the adaptive daylight AFAR formed at the first stage of signal processing. 2. Способ по п. 1, отличающийся тем, что формирование адаптивной диаграммы направленности (ДН) АФАР с созданием глубоких нулей в направлении активных помех проводят на первой ступени обработки в азимутальной и угломестной плоскости путем оконной свертки сигналов с использованием коэффициентов распределения Бейлиса.2. The method according to p. 1, characterized in that the formation of an adaptive radiation pattern (AF) of the AFAR with the creation of deep zeros in the direction of active interference is carried out at the first processing stage in the azimuth and elevation plane by window convolution of signals using Beilis distribution coefficients. 3. Способ по п. 1, отличающийся тем, что многооконную обработку сигналов на второй ступени обработки проводят с помощью множества параллельных согласованных фильтров с последующей когерентной обработкой результатов фильтрации и формированием ковариационной матрицы пассивных помех.3. The method according to p. 1, characterized in that the multi-window signal processing at the second processing stage is carried out using a variety of parallel matched filters, followed by coherent processing of the filtering results and the formation of a covariance matrix of passive interference. 4. Способ по п. 3, отличающийся тем, что формирование ковариационной матрицы проводят методом скользящего окна с группированием дискрет-матрицы по правилу умножения Кронекера.4. The method according to p. 3, characterized in that the formation of the covariance matrix is carried out by the sliding window method with grouping of the discrete matrix according to the Kronecker multiplication rule.
RU2018144308A 2018-12-14 2018-12-14 Method for spatio-temporal adaptive signal processing in a monopulse shipborne radar with an active phased antenna array RU2735216C2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111913157A (en) * 2020-08-17 2020-11-10 西安空间无线电技术研究所 Sea clutter suppression method based on radar signal space-time decorrelation model
CN112881986A (en) * 2021-01-15 2021-06-01 电子科技大学 Radar slice storage forwarding type interference suppression method based on optimized depth model
CN113311397A (en) * 2021-05-25 2021-08-27 西安电子科技大学 Large array rapid self-adaptive anti-interference method based on convolutional neural network

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US6720910B2 (en) * 2001-08-16 2004-04-13 Lockheed Martin Corporation Pri-staggered post-doppler adaptive monopulse processing for detection and location of a moving target in ground clutter
RU2455658C1 (en) * 2011-02-17 2012-07-10 Федеральное государственное военное образовательное учреждение высшего профессионального образования "Военный авиационный инженерный университет" (г. Воронеж) Министерства обороны Российской Федерации Method for adaptive spatial compensation of noise during monopulse amplitude integral-differential direction finding
RU2456631C1 (en) * 2011-02-17 2012-07-20 Федеральное государственное военное образовательное учреждение высшего профессионального образования "Военный авиационный инженерный университет" (г. Воронеж) Министерства обороны Российской Федерации Method for adaptive spatial compensation of interference during monopulse amplitude integral-differential direction finding and presence of receiving channel calibration errors
CN102288949B (en) * 2011-05-13 2013-04-17 中国民航大学 Optimal processor based maneuvering target detection method
RU2513868C2 (en) * 2012-06-14 2014-04-20 4 Центральный научно-исследовательский институт Министерства обороны Российской Федерации (4 ЦНИИ Минобороны России) Method for scanning pulsed doppler radar location of targets on passive jamming background
CN103439692B (en) * 2013-09-01 2015-06-17 西安电子科技大学 STAP method based on wide symmetrical characteristic of covariance matrix
CN103728607A (en) * 2014-01-16 2014-04-16 西安电子科技大学 Space time code three-dimensional self-adaptation clutter cancelling method for onboard multiple input multiple output (MIMO) radar
RU2593276C1 (en) * 2015-08-04 2016-08-10 Акционерное общество "Федеральный научно-производственный центр "Нижегородский научно-исследовательский институт радиотехники" Method of selecting moving targets
RU2609792C1 (en) * 2015-11-09 2017-02-03 Евгений Николаевич Мищенко Method of processing signals in modular adaptive antenna array during reception of correlated signals and interference
RU2629921C1 (en) * 2016-04-19 2017-09-04 Алексей Вадимович Литвинов Method of adaptive signal processing in modular phase antenna lattice
US9971027B1 (en) * 2017-11-10 2018-05-15 Helios Remote Sensing Systems, Inc. Methods and systems for suppressing clutter in radar systems

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111913157A (en) * 2020-08-17 2020-11-10 西安空间无线电技术研究所 Sea clutter suppression method based on radar signal space-time decorrelation model
CN111913157B (en) * 2020-08-17 2023-07-14 西安空间无线电技术研究所 Sea clutter suppression method based on radar signal space-time decorrelation model
CN112881986A (en) * 2021-01-15 2021-06-01 电子科技大学 Radar slice storage forwarding type interference suppression method based on optimized depth model
CN112881986B (en) * 2021-01-15 2022-08-23 电子科技大学 Radar slice storage forwarding type interference suppression method based on optimized depth model
CN113311397A (en) * 2021-05-25 2021-08-27 西安电子科技大学 Large array rapid self-adaptive anti-interference method based on convolutional neural network
CN113311397B (en) * 2021-05-25 2023-03-10 西安电子科技大学 Large array rapid self-adaptive anti-interference method based on convolutional neural network

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