RU2015143941A - METHOD FOR DETECTING A MOVING GOAL WITH DISTINCTION OF SPEED AND MANEUVERED CHARACTERISTICS - Google Patents

METHOD FOR DETECTING A MOVING GOAL WITH DISTINCTION OF SPEED AND MANEUVERED CHARACTERISTICS Download PDF

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RU2015143941A
RU2015143941A RU2015143941A RU2015143941A RU2015143941A RU 2015143941 A RU2015143941 A RU 2015143941A RU 2015143941 A RU2015143941 A RU 2015143941A RU 2015143941 A RU2015143941 A RU 2015143941A RU 2015143941 A RU2015143941 A RU 2015143941A
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RU
Russia
Prior art keywords
signal
sum
nodes
correlations
speed
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RU2015143941A
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Russian (ru)
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RU2619056C2 (en
Inventor
Александр Андреевич Шаталов
Александр Борисович Ястребков
Дмитрий Николаевич Самотонин
Игорь Станиславович Заборовский
Валентина Александровна Шаталова
Original Assignee
Федеральное государственное бюджетное учреждение "Центральный научно-исследовательский институт Военно-воздушных сил" Министерства обороны Российской Федерации (ФГБУ "ЦНИИ ВВС Минобороны России")
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Priority to RU2015143941A priority Critical patent/RU2619056C2/en
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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
    • G01S13/04—Systems determining presence of a target
    • 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
    • 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

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  • 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)

Claims (1)

Способ обнаружения движущейся цели с различением скоростных и маневренных характеристик, заключающийся в том, что пространство зондируют пачкой когерентных радиоимпульсов, осуществляют фильтрацию и аналого-цифровое преобразование отраженного от движущейся цели комплексного сигнала, представленного синфазной (действительной) и квадратурной (мнимой) составляющими его огибающей в фильтре, согласованном с отдельным импульсом пачки, получают выборки сигналов на интервале длительности пачки, вычисляют суммы корреляций выборки сигнала и опорных сигналов, также представленных синфазной (действительной) и квадратурной (мнимой) составляющими и соответствующих по своим параметрам комплексной огибающей излучаемого сигнала в узлах сетки, покрывающей область возможных значений доплеровской частоты сигнала, принимаемого в стробе дальности, и ее производной, определяют максимум модуля суммы корреляций по узлам сетки с запоминанием значения максимума и соответствующих ему значений частоты сигнала и ее производной, отличающийся тем, что дополнительно вычисляют суммы квадратов модулей комплексного сигнала, возводят в квадрат максимум модуля суммы корреляций по узлам сетки, покрывающей область возможных значений доплеровской частоты сигнала и ее производной, и сравнивают его значение с полученной суммой квадратов модулей комплексного сигнала, причем решение об обнаружении движущейся цели принимается в случае превышения одним из этих значений соответствующего ему порога обнаружения, а в случае превышения порогов обнаружения и превышения суммы квадратов модулей комплексных амплитудных отсчетов над квадратом максимума модуля суммы корреляций выборки сигнала и опорных сигналов по узлам сетки принимается решение о наличии быстро маневрирующей цели, в остальных случаях принимается решение о наличии цели с параметрами скорости и ускорения, соответствующими узлу сетки, покрывающей область возможных значений доплеровской частоты сигнала и ее производной, в котором фиксируется максимум модуля суммы корреляций по узлам, причем, если этот максимум относится к узлам, соответствующим нулевым ускорениям, принимают решение об отсутствии маневра цели с соответствующим параметром скорости, а в остальных случаях принимается решение о наличии маневрирующей цели с соответствующими параметрами скорости и ускорения.A method for detecting a moving target with a distinction between speed and maneuvering characteristics, namely that the space is probed by a bundle of coherent radio pulses, filtering and analog-to-digital conversion of the complex signal reflected from the moving target, represented by the in-phase (real) and quadrature (imaginary) components of its envelope in a filter matched to a single burst of a burst, samples of signals are obtained over the burst duration interval, the sums of correlations of the sample of the signal are calculated, and reference signals, also represented by in-phase (real) and quadrature (imaginary) components and corresponding in their parameters to the complex envelope of the emitted signal at the nodes of the grid covering the range of possible values of the Doppler frequency of the signal received in the range gate and its derivative, determine the maximum modulus of the sum of correlations on the grid nodes with storing the maximum value and the corresponding values of the signal frequency and its derivative, characterized in that the square is additionally calculated in the complex signal modules, squared the maximum module of the sum of correlations over the nodes of the grid covering the region of possible values of the Doppler frequency of the signal and its derivative, and compare its value with the obtained sum of squares of the modules of the complex signal, and the decision to detect a moving target is made if one exceeds of these values of the corresponding detection threshold, and in case of exceeding the detection thresholds and exceeding the sum of squares of the modules of the complex amplitude samples over the quad the maximum modulus of the sum of the correlations of the sample of the signal and the reference signals over the grid nodes, a decision is made on the presence of a quickly maneuvering target, in other cases a decision is made on the presence of a target with speed and acceleration parameters corresponding to the grid node covering the region of possible values of the Doppler frequency of the signal and its derivative, in which the maximum modulus of the sum of correlations over the nodes is fixed, and if this maximum refers to nodes corresponding to zero accelerations, they decide on the absence of maneuver ate with the appropriate speed parameter, and in other cases a decision is made about the presence of a maneuvering target with the corresponding parameters of speed and acceleration.
RU2015143941A 2015-10-13 2015-10-13 Method of moving target detecting with speed and maneuverability parameters distinction RU2619056C2 (en)

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Cited By (3)

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CN107092265A (en) * 2017-06-22 2017-08-25 义乌文烁光电科技有限公司 A kind of sorting trolley path planning method suitable for matrix form warehouse
CN113569735A (en) * 2021-07-28 2021-10-29 中国人民解放军空军预警学院 Complex coordinate attention module and complex input feature map processing method and system
CN113702965A (en) * 2021-08-31 2021-11-26 中国人民解放军海军航空大学 Improved accumulation method based on peak value convergence and simultaneous detection method of strong and weak targets

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RU2743027C1 (en) * 2019-12-13 2021-02-12 Владимир Григорьевич Бартенев Adaptive correlation-based detection method

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DE19714578C2 (en) * 1997-04-09 1999-02-18 Bosch Gmbh Robert Radar system, especially for automotive applications
RU2292061C2 (en) * 2004-08-23 2007-01-20 Тамбовский военный авиационный инженерный институт Arrangement for tracking of a maneuvering target
RU2296348C2 (en) * 2005-04-11 2007-03-27 Открытое акционерное общество "Корпорация "Фазотрон-Научно-исследовательский институт радиостроения" (ОАО "Корпорация "Фазотрон - НИИР") Tracking measuring device with a maneuver detector and an adaptive forecast correction
US7843375B1 (en) * 2007-01-16 2010-11-30 Bae Systems Information And Electronic Systems Integration Inc. Method and apparatus for monitoring the RF environment to prevent airborne radar false alarms that initiate evasive maneuvers, reactionary displays or actions
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CN107092265A (en) * 2017-06-22 2017-08-25 义乌文烁光电科技有限公司 A kind of sorting trolley path planning method suitable for matrix form warehouse
CN113569735A (en) * 2021-07-28 2021-10-29 中国人民解放军空军预警学院 Complex coordinate attention module and complex input feature map processing method and system
CN113569735B (en) * 2021-07-28 2023-04-07 中国人民解放军空军预警学院 Complex input feature graph processing method and system based on complex coordinate attention module
CN113702965A (en) * 2021-08-31 2021-11-26 中国人民解放军海军航空大学 Improved accumulation method based on peak value convergence and simultaneous detection method of strong and weak targets
CN113702965B (en) * 2021-08-31 2023-05-05 中国人民解放军海军航空大学 Improved accumulation method based on peak value optimization and simultaneous detection method for strong and weak targets

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