A.V. Andrianov¹, D.V. Belyaev², A.N. Zikiy³

¹⁻³JSC "Taganrog Scientific Research Institute of Communications" (Taganrog, Rostov Region, Russia)

¹artur_andrianov_1990@mail.ru, ²denisb2002@mail.ru, ³zikiy50@mail.ru

The bearing on the source of radio emission (IRI) is one of the most informative signs of a radio signal, therefore it is necessarily used to link the radiation to the carrier. The operation of the radio source in the mode with pseudorandom adjustment of the operating frequency (RFF), with the wobble of the repetition period and pulse duration leads to the fact that the bearing remains the only constant or slowly changing parameter of the radio signal.

The object of research in this work is a multi-channel monopulse direction finder. The aim of the study is to improve the accuracy of direction finding by optimizing the algorithm for processing the radio signal.

An experimental study of the amplitude direction finder has been carried out. The results are presented as: 1) block diagram of the direction finder; 2) the bearing algorithm; 3) block diagram of the measuring unit; 4) directional patterns of the four channels of the direction finder; 5) azimuth bearing error ranges from 0 to 180°.

The following results were achieved: 1) azimuth for simultaneous signal reception from 0 to 360°; 2) the azimuth bearing error is about 5° when averaging the bearings across the ensemble and azimuth.

Andrianov A.V., Belyaev D.V., Zikiy A.N. Error of direction finding by the amplitude direction finder. Radioengineering. 2025. V. 89. № 11. P. 138−142. DOI: https://doi.org/10.18127/j00338486-202511-16 (in Russian)

1. Tsui J.B.Y. Microwave receiver with Electronic Warfare application. Jonh Wiley & Sons. N.Y. et al. 1986. 460 p.
2. Wiley R.G. Electronic Intelligence. The Interception of Radar Signals. Dedham. Artech House. 1985.
3. Rembovskii A.M., Ashikhmin A.V., Kozmin V.A. Avtomatizirovannye sistemy radiokontrolya i ikh komponenty. M.: Goryachaya liniya – Telekom. 2018. 424 s. (in Russian)
4. Lipsky S.E. Microwave Passive Direction Finding. Scitech Publishing. 2004. 320 p.
5. Khokhlov V.K. Obnaruzhenie, raspoznavanie i pelengatsiya ob'ektov v blizhnei lokatsii: Ucheb. posobie. M.: MGTU im. N.E. Baumana. 2005. 336 s. (in Russian)
6. Kupriyanov A.I., Petrenko P.B., Sychev M.P. Teoreticheskie osnovy radioelektronnoi razvedki: Ucheb. posobie. M.: MGTU im. N.E. Baumana. 2010. 381 s. (in Russian)
7. Belyaev D.V., Zikii A.N. Algoritm pelengovaniya i pogreshnost neidentichnosti monoimpulsnogo amplitudnogo pelengovaniya. Voprosy spetsialnoi radioelektroniki. Ser. «Obshchie voprosy radioelektroniki». 2006. № 2. S. 54. (in Russian)
8. Andrianov A.V., Gubarev D.E., Zikii A.N., Pustovalov A.I. Eksperimentalnoe issledovanie priemnika pelengovaniya pryamogo usileniya. Radiotekhnika. 2020. № 11 (22). S. 50−54. (in Russian)
9. Andrianov A.V., Gubarev D.E., Zikii A.N., Pustovalov A.I. Eksperimentalnoe issledovanie priemnika pryamogo usileniya. Sb. statei «Problemy sovremennoi sistemotekhniki» (Taganrog: IP Stupin S.A.). 2020. № 14. S. 15−19. (in Russian)
10. By Ollie Holt. Technology Survey a Sampling of RWR and ESM Systems. Journal Electronic Defence. June 2015. P. 39−46.
11. Artemov M.L. i dr. Obnaruzhenie i pelengovanie istochnikov radioizluchenii v ramkakh teorii statisticheskoi radiotekhniki. Radiotekhnika. 2016. № 5. S. 4−18. (in Russian)
12. Roshchenko A.I., Goldobin S.I. Konicheskaya rupornaya antenna s rebristoi strukturoi, formiruyushchaya stabilnuyu po shirine diagrammu napravlennosti poryadka 40° na vertikalnoi i gorizontalnoi polyarizatsii. Voprosy spetsialnoi radioelektroniki. Ser. «Obshchie voprosy radioelektroniki». 2001. № 2. S. 109−110. (in Russian)