RU2019138395A - Method for direction finding of wideband signals with increased resolution - Google Patents

Method for direction finding of wideband signals with increased resolution Download PDF

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Publication number
RU2019138395A
RU2019138395A RU2019138395A RU2019138395A RU2019138395A RU 2019138395 A RU2019138395 A RU 2019138395A RU 2019138395 A RU2019138395 A RU 2019138395A RU 2019138395 A RU2019138395 A RU 2019138395A RU 2019138395 A RU2019138395 A RU 2019138395A
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RU
Russia
Prior art keywords
signals
direction finding
received
broadband
elements
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RU2019138395A
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Russian (ru)
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RU2752878C2 (en
RU2019138395A3 (en
Inventor
Артем Николаевич Новиков
Екатерина Евгеньевна Новикова
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ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ КАЗЕННОЕ ВОЕННОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ "Военная академия Ракетных войск стратегического назначения имени Петра Великого" МИНИСТЕРСТВА ОБОРОНЫ РОССИЙСКОЙ ФЕДЕРАЦИИ
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Application filed by ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ КАЗЕННОЕ ВОЕННОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ "Военная академия Ракетных войск стратегического назначения имени Петра Великого" МИНИСТЕРСТВА ОБОРОНЫ РОССИЙСКОЙ ФЕДЕРАЦИИ filed Critical ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ КАЗЕННОЕ ВОЕННОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ "Военная академия Ракетных войск стратегического назначения имени Петра Великого" МИНИСТЕРСТВА ОБОРОНЫ РОССИЙСКОЙ ФЕДЕРАЦИИ
Priority to RU2019138395A priority Critical patent/RU2752878C2/en
Publication of RU2019138395A publication Critical patent/RU2019138395A/en
Publication of RU2019138395A3 publication Critical patent/RU2019138395A3/ru
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S3/00Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14Systems for determining direction or deviation from predetermined direction
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S3/00Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/74Multi-channel systems specially adapted for direction-finding, i.e. having a single antenna system capable of giving simultaneous indications of the directions of different signals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/04Position of source determined by a plurality of spaced direction-finders

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Claims (1)

Способ пеленгации широкополосных сигналов с повышенной разрешающей способностью, заключающийся в том, что принимают сигналы источников электромагнитного излучения антенной решеткой из N элементов, формируют ансамбль сигналов, зависящих от времени и номера антенного элемента, синхронно преобразуют ансамбль принятых сигналов в цифровые сигналы, преобразуют цифровые сигналы в сигнал комплексной пространственной ковариационной матрицы, описывающий амплитуды и фазы взаимных сигналов, принятых элементами решетки, формируют пеленгационный рельеф, определяют углы θi и ϕi каждого луча принятого многолучевого сигнала по максимумам пеленгационного рельефа, отличающийся тем, что в качестве элементов антенной решетки применяют излучатели, позволяющие принимать сигналы в широкой полосе частот, рабочий диапазон частот каждого излучателя разбивают на K одинаковых частотных интервалов, в каждом из K частотных интервалов определяют частоту ωk, для которой формируют пеленгационный рельеф и определяют углы θi и ϕi каждого луча принятого многолучевого широкополосного сигнала по максимумам пеленгационного рельефа, принимают с этих направлений и на заданных частотах многолучевые широкополосные сигналы, а для остальных частот широкополосных сигналов производят их аппроксимацию кусочно-постоянной или кусочно-линейной аппроксимирующими функциями.A method for direction finding broadband signals with increased resolution, which consists in receiving signals from sources of electromagnetic radiation by an antenna array of N elements, forming an ensemble of signals that depend on time and the number of an antenna element, synchronously converting the ensemble of received signals into digital signals, converting digital signals into the signal of the complex spatial covariance matrix, which describes the amplitudes and phases of the mutual signals received by the array elements, forms a direction finding relief, determines the angles θ i and ϕ i of each beam of the received multipath signal from the maxima of the direction finding relief, characterized in that emitters are used as elements of the antenna array, allowing to receive signals in a wide frequency band, the operating frequency range of each emitter is divided into K identical frequency intervals, in each of the K frequency intervals the frequency ω k is determined, for which the direction finding relief is formed and the angles θ i and ϕ i of each beam of the received multi-beam broadband signal according to the maxima of the direction finding relief, receive multi-beam broadband signals from these directions and at given frequencies, and for the remaining frequencies of broadband signals, they are approximated by piecewise constant or piecewise linear approximating functions.
RU2019138395A 2019-11-27 2019-11-27 Method of direction finding for broadband signals with increased resolution RU2752878C2 (en)

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RU2752878C2 RU2752878C2 (en) 2021-08-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116819429A (en) * 2023-06-30 2023-09-29 中国人民解放军军事科学院***工程研究院 Weak signal direction finding method combined with time domain snapshot detection

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US6567034B1 (en) * 2001-09-05 2003-05-20 Lockheed Martin Corporation Digital beamforming radar system and method with super-resolution multiple jammer location
US6894642B2 (en) * 2003-10-01 2005-05-17 University Of Florida Research Foundation, Inc. Doubly constrained robust capon beamformer
RU2392634C1 (en) * 2009-05-18 2010-06-20 Марина Витальевна Самойленко Method for definition of directions to radiation sources and angular discrimination of sources
RU2491569C2 (en) * 2010-03-25 2013-08-27 Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации Method of direction finding with increased resolution ability
RU2517365C2 (en) * 2012-07-04 2014-05-27 Открытое акционерное общество "Омский научно-исследовательский институт приборостроения" (ОАО "ОНИИП") Method of detecting and finding direction of radio-frequency sources at one frequency
JP6035165B2 (en) * 2013-02-22 2016-11-30 パナソニック株式会社 Radar equipment
CN104502896B (en) * 2014-12-31 2017-03-29 电子科技大学 A kind of sane reconstructing method of interference covariance matrix
RU2655664C1 (en) * 2017-05-10 2018-05-29 федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный морской технический университет" (СПбГМТУ) Method for detecting objects in active location
RU2684275C1 (en) * 2018-06-26 2019-04-05 Акционерное общество научно-внедренческое предприятие "ПРОТЕК" Method for improving resolution of correlation methods of direction finding
CN109541552B (en) * 2018-12-27 2021-04-27 天津职业技术师范大学(中国职业培训指导教师进修中心) Adaptive beamforming method and system for radar antenna array

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116819429A (en) * 2023-06-30 2023-09-29 中国人民解放军军事科学院***工程研究院 Weak signal direction finding method combined with time domain snapshot detection
CN116819429B (en) * 2023-06-30 2024-02-27 中国人民解放军军事科学院***工程研究院 Weak signal direction finding method combined with time domain snapshot detection

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RU2019138395A3 (en) 2021-05-27

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