RU96115330A - DEVICE FOR COMPENSATION OF MOTION ERRORS FOR RADARS WITH A SYNTHESIZED Aperture BASED ON ROTATING ANTENNA (ROSAR) FOR HELICOPTERS - Google Patents

DEVICE FOR COMPENSATION OF MOTION ERRORS FOR RADARS WITH A SYNTHESIZED Aperture BASED ON ROTATING ANTENNA (ROSAR) FOR HELICOPTERS

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Publication number
RU96115330A
RU96115330A RU96115330/09A RU96115330A RU96115330A RU 96115330 A RU96115330 A RU 96115330A RU 96115330/09 A RU96115330/09 A RU 96115330/09A RU 96115330 A RU96115330 A RU 96115330A RU 96115330 A RU96115330 A RU 96115330A
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RU
Russia
Prior art keywords
data
interpolation
electronic module
module
rosar
Prior art date
Application number
RU96115330/09A
Other languages
Russian (ru)
Other versions
RU2168741C2 (en
Inventor
Клаузинг Хельмут
Вольфрамм Ариберт
Original Assignee
Даймлер-Бенц Эйроспейс АГ
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Priority claimed from DE19528613A external-priority patent/DE19528613C2/en
Application filed by Даймлер-Бенц Эйроспейс АГ filed Critical Даймлер-Бенц Эйроспейс АГ
Publication of RU96115330A publication Critical patent/RU96115330A/en
Application granted granted Critical
Publication of RU2168741C2 publication Critical patent/RU2168741C2/en

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Claims (5)

1. Устройство для компенсации погрешностей движения для РЛС синтезированной апертурой на основе вращающихся антенн (ROSAR) для вертолетов и управления их полетом, причем передающие и приемные антенны для передачи последовательности импульсов и приема отраженных импульсов установлены соответственно на вращающейся консоли, содержащее устройства для корреляции принятых сигналов с заданными опорными функциями и устройства для коррекции погрешностей движения и кривизны, а также дополнительные электронные модули для образования интервалов дальности, демодуляции и аналого-цифровой преобразователь, отличающийся тем, что процессуру установки ROSAR соответствует электронный модуль (30) для сжатия импульсов, данные которого введены аналого-цифровым преобразователем (16), преобразуют посредством быстрого преобразования Фурье, сигналы этого электронного модуля (30) для сдвига индекса подают к электронному модулю (31) для сдвига временного селектора, которому для точного сдвига временного селектора соответствует интерполяционный элемент (32), данные которого для компенсации амплитудных флуктуаций вводят в устройство (33) скалярного умножения, а из него - в ЗУ большого объема или модуль (34) "Conner Turn", выходные данные которого подают к интерполяционному элементу (35), а через коррелятор (18) для компенсации сдвига данных за счет касательной составляющей скорости - ко второму интерполяционному модулю (36), при этом для преобразования комплексных данных в реальные амплитудные данные между ЗУ (18) с монитором (19) и интерполяционным модулем (36) включен детектирующий электронный модуль (37).1. A device for compensating for motion errors for a radar with a synthesized aperture based on rotating antennas (ROSAR) for helicopters and controlling their flight, the transmitting and receiving antennas for transmitting a sequence of pulses and receiving reflected pulses are mounted on a rotating console, respectively, containing devices for correlating received signals with predetermined support functions and devices for correcting motion errors and curvature, as well as additional electronic modules for interval formation range, demodulation and analog-to-digital converter, characterized in that the ROSAR installation process corresponds to an electronic module (30) for compressing pulses, the data of which are input by an analog-to-digital converter (16), are converted by means of a fast Fourier transform, the signals of this electronic module (30) for shifting the index, it is fed to the electronic module (31) for shifting the time selector, to which for the exact shift of the time selector there corresponds an interpolation element (32), the data of which for compensating the amplitude fluctuations are introduced into the scalar multiplication device (33), and from it into the large-volume memory or the Conner Turn module (34), the output of which is supplied to the interpolation element (35), and through the correlator (18) to compensate for the data shift due to the tangential component of the velocity, to the second interpolation module (36), and for converting complex data into real amplitude data between the memory (18) with a monitor (19) and the interpolation module (36), a detecting electronic module (37) is included. 2. Устройство по п.1, отличающееся тем, что введенные в электронный модуль (30) данные сжимают посредством "Deramp-on-Receive". 2. The device according to claim 1, characterized in that the data entered into the electronic module (30) is compressed by means of "Deramp-on-Receive". 3. Устройство по п. 1 или 2, отличающееся тем, что двухмерную интерполяцию при обработке изображения РЛС с синтезированной апертурой производят посредством кубической свертки. 3. The device according to p. 1 or 2, characterized in that the two-dimensional interpolation when processing the radar image with the synthesized aperture is carried out by means of cubic convolution. 4. Устройство по п. 1 или 2, отличающееся тем, что одномерную интерполяцию производят в направлении дальности, а в азимутальном направлении используют алгоритм SPECAN с изменяющимся нарастанием допплеровского сигнала. 4. The device according to claim 1 or 2, characterized in that the one-dimensional interpolation is performed in the direction of range, and in the azimuthal direction, the SPECAN algorithm with a varying increase in the Doppler signal is used. 5. Устройство по п. 1 или 2, отличающееся тем, что для измерения фазовых погрешностей, вызванных колебательными составляющими, на конце турникета антенны жестко установлена "Ускоряющая триада". 5. The device according to claim 1 or 2, characterized in that for the measurement of phase errors caused by vibrational components, an “Accelerating Triad” is rigidly installed at the end of the antenna turnstile.
RU96115330/09A 1995-08-04 1996-08-02 Device for reduction of errors of motion for radar with synthesized aperture on the basis of rotatable antennas (rosar) for helicopters RU2168741C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19528613.8 1995-08-04
DE19528613A DE19528613C2 (en) 1995-08-04 1995-08-04 Movement error compensation device for a radar with synthetic aperture based on rotating antennas (ROSA) for helicopters

Publications (2)

Publication Number Publication Date
RU96115330A true RU96115330A (en) 1998-11-10
RU2168741C2 RU2168741C2 (en) 2001-06-10

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RU96115330/09A RU2168741C2 (en) 1995-08-04 1996-08-02 Device for reduction of errors of motion for radar with synthesized aperture on the basis of rotatable antennas (rosar) for helicopters

Country Status (5)

Country Link
US (1) US5777573A (en)
EP (1) EP0757259B1 (en)
JP (1) JP3121544B2 (en)
DE (2) DE19528613C2 (en)
RU (1) RU2168741C2 (en)

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