I.S. Ashurkov – Ph.D. (Eng), Associate Professor, Department of «Automated Control Systems»,

Yaroslavl Higher Military Institute of the Air Defense

E-mail: ivanashurkov1@mail.ru

S.A. Zhitkov – Adjunct,

Department of «Anti-aircraft Missile Systems»,

Yaroslavl Higher Military Institute of the Air Defense

E-mail: gitkov.s@mail.ru

I.N. Zakharov – Adjunct,

Department of «Anti-aircraft Missile Systems»,

Yaroslavl Higher Military Institute of the Air Defense

E-mail: zaharov1985@mail.ru

N.A. Leshko – Dr.Sc. (Eng), Associate Professor, Head of Department of «Anti-aircraft Missile Systems», Yaroslavl Higher Military Institute of the Air Defense

E-mail: nikolai_zru@mail.ru

А.V. Moroz – Senior Researcher,

22 Department of, Military Institute (Research)

Military Space Academy named after A.F. Mozhaisky

E-mail: moroz-anatolij@yandex.ru

I.V. Sahno – Dr.Sc. (Eng), Professor, Head of a Military Institute (Research),

Military Space Academy named after A.F. Mozhaisky

E-mail: vka@mil.ru

Under conditions of low signal-to-noise ratios, an increase in the efficiency of radar detection is associated with an increase in the  accumulation time of the reflected signals. In this case, the target migrates along the resolution elements and the detection task must be carried out at the level of the trajectory. In this regard, the authors have developed a model for the process of detecting a curved trajectory, which is based on the technology TBD «track-before-detection» and block methods of trajectory processing. The proposed model requires verification of its adequacy and ability to work in conditions of low signal-to-noise ratios. Confirmation of the effectiveness of the model was performed during a statistical experiment at a location acoustic complex.

The aim of the article is to verify the adequacy and verification of the model of the process of detecting a curved path in conditions of low signal-to-noise ratios, as well as to evaluate the performance indicators of the trajectory processing system.

Using the location acoustic system, a hardware-software model of a multi-position location target detection system and a model of the process of detecting a curved path has been implemented. A technique has been developed for a semi-natural statistical experiment with a model of the detector of the target trajectory in the form of an arc of a circle with an unknown radius. The results of the experiment are presented. During the analysis of the experimental results, estimates of the quality indicators of the primary target detection and the efficiency of the trajectory processing system are obtained.

The developed model of the detection process can be used to upgrade the hardware and software of radar stations and complexes.

Ashurkov I.S., Zhitkov S.A., Zakharov I.N., Leshko N.A., Moroz А.V., Sahno I.V. Results of an experiment to detect a curved path of an aerodynamic target in a multi-position location system at low signal-to-noise ratios. Achievements of modern radioelectronics. 2020. V. 74. № 4–5. P. 48–60. DOI: 10.18127/j20700784-202004-04. [in Russian]

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