Research of RF stealth method based on complicated electromagnetic environment

DOI:	10.11809/bqzbgcxb2023.11.032
Keywords:	complicated electromagnetic environment; RF stealth; electronic reconnaissance; signal intercept; signal sorting and clustering
Abstract:	Aiming at the problem of RF stealth of RF sensors in complex battlefield space antagonism environments, the research on active RF stealth method based on complex electromagnetic environment is carried out. By perceiving the distribution characteristics of enemy electromagnetic signals through its own platform electronic reconnaissance equipment, it actively builds a complex electromagnetic environment that is beneficial to itself and unfavorable to the enemy, forms time frequency overlapping signals in the sub channel of the enemy threat reconnaissance receiver, affects the signal detection and sorting and clustering processing of enemy electronic reconnaissance equipment, increases the measurement error of enemy reconnaissance equipment, and cannot form a stable radiation source, and reduces the probability of the signal being intercepted. Through simulation analysis, it can be seen that when the complex electromagnetic environment is regarded as the interference disturbance signal, the interfering signal ratio is above 6 dB, which has a great influence on the measurement of frequency, pulse width and other parameters of reconnaissance equipment and the sorting and clustering of radiation sources. Based on the electromagnetic situation awareness results, the complex electromagnetic environment with overlapping time and frequency is actively constructed, which can be controlled in real time according to the combat mission and the electromagnetic environment of both the enemy and us, so as to realize the advantages of active RF stealth.
Issue:	Vol. 44 No. 11 (2023)
Published:	2023-11-28
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