350 rub
Journal Radioengineering №6 for 2020 г.
Article in number:
Experimental verification of air targets return signals recording possibility in multistatic radar system based on special transmitters
Type of article: scientific article
DOI: 10.18127/j00338486-202006(12)-19
UDC: 621.396.967.2
Authors:

V.A. Shuvaev – Ph.D. (Eng.), Associate Professor, General Director, 

JSC SPE «PROTEK» (Voronezh, Russia)

Е-mail: protek@protek-vrn.ru

A.V. Zhuravlev – Dr.Sc. (Eng.), Senior Research Scientist, MainDesigner – Deputy General Director, JSC SPE «PROTEK» (Voronezh, Russia)

E-mail: protek@protek-vrn.ru

V.V. Kiryushkin − Ph.D. (Eng.), Associate Professor, Head of Department, 

JSC SPE «PROTEK» (Voronezh, Russia)

E-mail: kiryushkin.vlad@mail.ru

S.I. Babusenko − Ph.D. (Eng.),Associate Professor, Leading Research Scientist,

JSC SPE «PROTEK» (Voronezh, Russia)

E-mail: sergbs@mail.ru

Abstract:

Target statement. The issues of experimental verification of possibility to observe targets in multipositional radar systems have not received enough attention in the recent research. Previously, theoretical synthesis of multipositional radar system based on a network of specialized interference transmitters targeted at the global navigation satellite system was performed, zones of energy accessibility of such systems were specified, and its secondary processing subsystem’s accuracy characteristics were studied. Further, a nair target acquisition natural experiment was conducted, and it allowed to obtain new data, whose analysis and interpretation is an individual scientific task.  

Objective. Analysis and interpretation of the results of the air target acquisition by multipositional radar system based on specialized interference transmitters targete dat the global navigation satellite system natural experiment.

Results. The synthesized multipositional radarsys tem provides registration of responses from air targets under the condition that the radio link receives sufficient power supply. There duction of the direct signal from the transmitter mitted by the lateral petals of the beam pattern on the open path is such as its response level is compatible to the response level of remote targets. The range of Doppler frequency where responses from air targets were discovered is in good agreement with the modelling results and lies within ±1000 Hz. All the obtained data is well with in the expected trend: as the total distance to a target increases, the response level from the target decreases; however, when the targets approach the bistatic base, the effects which are presumably linked to increasing target’s contour re-reflecting the transmitter’s signal in the direction of the receiver, come into play. Doppler frequency grading enables observation of weak responses from targets over a stronger signal from the forward scatter transmitter. 

Practical implication. The results of analyzing the data obtained during the natural experiment, can be applied for validation of requirements to a multipositional radar system based on specialized transmitters and in the design of further natural experiments.

Pages: 121-161
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Date of receipt: 17 марта 2020 г.