M.A. Maksimkin1, N.P. Sizyakov2

1,2 JSC “CNIRTI named after academician A.I. Berg” (Moscow, Russia)

1,2 post@cnirti.ru

Statement of the problem. Modern electronic warfare (EW) systems face increasing difficulties in countering the enemy's technologically advanced radar stations (RSLs). Thanks to the latest technologies, RSLs operate in a wide dynamic range and frequency band. EW systems must perform tasks with a high probability of detecting probing signals that have a short duration and large frequency uncertainty. The use of traditional frequency converters in the microwave range for these purposes leads to the fact that the receiver's output signal contains combinational and intermodulation components in its spectrum, which are formed when the input signal interacts with the heterodyne signal, as well as input signals with each other. Low-order parasitic harmonics also contribute. Microwave band equipment can reduce the level of spurious signals relative to the level of useful signals by about 25 dB, and at least 60 dB is required for stable operation of electronic reconnaissance (RTR) systems. Such contradictions are eliminated very effectively by optical methods.

Purpose. The purpose of the article is to show how, by using acousto-optic modulators, it is possible to expand the frequency band and increase the dynamic range of electronic warfare systems in processing radar probing signals.

Results. The expediency of using acousto-optic systems to increase the efficiency of the performance of electronic warfare systems is substantiated.

Practical significance. The article shows that by using the alignment control algorithm of the double-pass acousto-optic modulator, it is possible to significantly improve the technical and electrical parameters of acousto-optic modulators in order to increase the resolution of spectrum analyzers in electronic warfare systems.

Maksimkin M.A., Sizyakov N.P. Aspects of using acoustophotic modulators in EW. Radiotekhnika. 2025. V. 89. № 10. P. 155−164. DOI: https://doi.org/10.18127/j00338486-202510-19 (In Russian)

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