Misleading interference method based on phase modulation surface

Abstract

The invention discloses a misleading jamming method based on a phase-switched screen. The trap of a radar angle tracking system is realized through the change of the work state of the phase-switched screen (PSS). The method specifically includes steps: replacing a jammer by the phase-switched screen; setting a modulation frequency and a modulated waveform of the phase-switched screen, and adjusting the work state of a frequency selective surface; and correspondingly controlling the work state of the phase-switched screen according to a power-on sequence and a time interval T of the jammer in the misleading jamming, and finally achieving the goal of misleading an angle measuring system. According to the method, the jamming effect which can be achieved by active jamming is realized through a passive jamming mode, the jammer does not need to actively emit electromagnetic waves, the probability of detection and attack for a jamming system is greatly reduced, and the phase-switched screen is simple in manufacture, short in period, low in cost, easy in popularization and application, high in flexibility, and wide in application range, and can be promoted to other jamming modes, for instance, the phase-switched screen can be used for realizing cross-eye jamming.

Description

technical field [0001] The invention belongs to the field of radar jamming. It specifically involves radar passive deception jamming technology, and furthermore, it proposes a passive misleading jamming method based on phase modulation surface for monopulse angle measurement and tracking system. Background technique [0002] The missile terminal guidance radar generally adopts an advanced monopulse angle tracking system. This angle measurement method only needs one echo pulse to measure all the information of the target angular position. , high angle measurement accuracy and other advantages, the general suppression of jamming and spoofing jamming are difficult to work, how to better achieve effective jamming of monopulse radar has always been a hot spot and difficulty in the field of radar countermeasures. [0003] Existing studies have shown that the effective angle deception jamming of monopulse radar can be implemented through the interference of two (multiple) point so...

AI Technical Summary

Problems solved by technology

However, due to the need for jammers to actively launch electromagnetic signals, the probability of the entire jamming system being discovered and attacked is also significantly increased.

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