Method for the detection of small­sized air objects by observational radars

Authors

DOI:

https://doi.org/10.15587/1729-4061.2018.126509

Keywords:

small-sized air object, detection, signal reception, one-position system, multiposition system, processing channel

Abstract

We proposed the introduction of an additional mode of dispersed reception and the combination of one-position and multiple reception of signals to the existing one-position observation radar. We improved the algorithm for detection of an air object at its irradiation by several transmitters. We provided compensation of a delay time and Doppler frequency in each receiving channel to a separate volume of an observation radar upgrading the algorithm. The improved algorithm for detection of an air object at its irradiation by several transmitters is reduced to: coherent processing of received signals in each processing channel in each element corresponding to the relevant separate volume and the relevant separate Doppler frequency; quadratic detection in each processing channel in each element corresponding to the relevant separate volume and the relevant separate Doppler frequency; weight summation of detector outputs for each processing channel in each element corresponding to the relevant separate volume and the relevant separate Doppler frequency.

We constructed a structural diagram of the detector of an air object at its illumination by several transmitters. Each receiving channel of a signal is a multichannel for distance and speed. The diagram provides reception, coherent processing of echo signals from third-party sources, compensation of delay and Doppler frequency differences relative to a separate volume of the observation radar and incoherent weight summation.

We carried out estimation of the efficiency of detection of an air object at its irradiation by several transmitters. We established that the transition from a single-channel detection of an air object to the detection of an air object at the incoherent combination of two channels results in a significant shift of detection characteristics to the left.

We selected the number of receiving channels to be combined. We established that it is most effective to combine two, at most three, reception channels.

We constructed a structural diagram of channels that process echo signals of an observation radar by combining the methods of one-position and differential signal reception. For combining of one-position and dispersed location modes of observation radars, we provided complexing of corresponding digital reception devices and digital signal processing systems. The main principle underlying the combination of the mentioned receiving devices is the informational supplement without violating the standard modes of operation of observation radar.

Author Biographies

Hennadii Khudov, Ivan Kozhedub Kharkiv University of Air Force Sumska str., 77/79, Kharkiv, Ukraine, 61023

Doctor of Technical Sciences, Professor, Head of Department

Department of Radar Troops Tactic

Andrii Zvonko, Hetman Petro Sahaidachnyi National Army Academy Heroiv Maidanu str., 32, Lviv, Ukraine, 79012

PhD, Senior Lecturer

Department of Rocket Artillery Armament

Sergiy Kovalevskyi, Ivan Kozhedub Kharkiv University of Air Force Sumska str., 77/79, Kharkiv, Ukraine, 61023

PhD

Department of Radar Troops Tactic

Vitaliy Lishchenko, Ivan Kozhedub Kharkiv University of Air Force Sumska str., 77/79, Kharkiv, Ukraine, 61023

Adjunct

Department of Radar Troops Tactic

Fedor Zots, Ivan Kozhedub Kharkiv University of Air Force Sumska str., 77/79, Kharkiv, Ukraine, 61023

PhD

Department of Radar Armament

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Published

2018-03-21

How to Cite

Khudov, H., Zvonko, A., Kovalevskyi, S., Lishchenko, V., & Zots, F. (2018). Method for the detection of small­sized air objects by observational radars. Eastern-European Journal of Enterprise Technologies, 2(9 (92), 61–68. https://doi.org/10.15587/1729-4061.2018.126509

Issue

Vol. 2 No. 9 (92) (2018): Information and controlling system

Section

Information and controlling system

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Copyright (c) 2018 Hennadii Khudov, Andrii Zvonko, Sergiy Kovalevskyi, Vitaliy Lishchenko, Fedor Zots

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