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Journal Antennas №11 for 2016 г.
Article in number:
Reducing of the radar visibility of objects by the methods of randomization of signal parameters and managed antenna cover of multifunction adaptive radars
Keywords: ultra-wideband radar signal spectrum spreading randomization visibility security superresolution energy potential
Authors:
Yu. N. Gorbunov - Dr.Sc. (Eng.), Senior Research Scientist, Professor of MIREA; Leading Research Scientist, Kotel-nikov Institute of Radio Engineering and Electronics of RAS E-mail: gorbunov@ms.ire.rssi.ru
Abstract:
The theoretical basis and the possible ways of using time-frequency and space-frequency resource for spreading PN radar with MTI, including due to randomization of the electrodynamic parameters of managed adaptive coverage, carrier frequency adjustment, multi-frequency analysis, wobble repetition period of probing pulses , use of noise carriers and in the future - full implementation of the noise UWB radar implementing the uncertainty body shape satisfying the requirement of circular symmetry, and having improved stealth operation have been considered. The conditions of improving the object stealth have been determined. It is achieved by random changing of the parameters of the EAF - surface-distributed antenna with signal processing, which extends range of conventional and spatial frequencies, increasing entropy. As a result, the visibility focusing collapses to an outside observer, but possibility of suppression of correlated in time and space interference and beam forming is maintained. The novelty of the work consists in taking into account the MTI radar operation mode in the conditions of use of combined passive and active interferences with scan randomization, which is an effective means of suppressing of jamming.
Pages: 42-50
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