Proposals for Improving of Air Surveillance Informativity in MIMO Radar Systems Based on Two-Dimensional Radars

Lishchenko, Vitaliy; Chaliy, Vladislav; Khudov, Hennadii; Zvonko, Andrii

doi:10.1109/infocommst.2018.8632052

Cited by 20 publications

(18 citation statements)

References 4 publications

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“…The tasks of searching and detecting objects in information systems are currently being solved independently of each other. This applies to both radar [1,3,[4][5][6][7][8]10] and optoelectronic [2,9,[11][12][13][14][15][16] systems. There are optimization methods that consider search and detection as a single task only in the production plan.…”

Section: Problem Analysismentioning

confidence: 99%

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The Optimization Technique for Joint Discrete Search and Detection of Observation Objects

Khudov¹

2020

IJETER

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Briefly analyzes the main results of solving problems of search and detection of objects of observation in information systems. A discrete search zone is introduced. The task is to find the optimal Bayes decision rule in the current discrete search zone. The Bayesian decision-making rule is clarified when jointly optimizing discrete search and detection of observation objects. Key words : information system, joint search and detection of objects, discrete search and detection of objects, the time of searching and finding objects, Bayes criterion of minimum average risk.

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Section: Problem Analysismentioning

confidence: 99%

“…Today, a whole class of information systems is used to solve the problem of searching and detecting objects in conditions of limited search potential [1][2][3][4][5][6][7]. This article assesses the possibility of reducing the requirements for search potential due to the joint Bayes optimization of the search and detection of objects.…”

Section: Introductionmentioning

confidence: 99%

The Optimization Technique for Joint Discrete Search and Detection of Observation Objects

Khudov¹

2020

IJETER

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“…It is known from the experience of last local wars and the anti-terrorist operation and the Joint Forces operation that small UAVs in most cases were not detected by the available means of radar of the radar troops [2]- [5], [9], which form the basis of the air defence information subsystem. The following problems significantly reduce the effectiveness of the using of radar troops [10]- [16]: -the radar air surveillance system is not able to provide guaranteed detection and maintenance of the air object in general and inconspicuous objects in particular; -deficiency of sufficient number of new and modernized samples of electronic equipment, means of automation of collection, processing and issuance of radar information in radio engineering units to provide information about the air object at low and extremely low altitudes, and others.…”

Section: Introductionmentioning

confidence: 99%

The Coherent Signals Processing Method in the Multiradar System of the Same Type Two-coordinate Surveillance Radars with Mechanical Azimuthal Rotation

Khudov¹

2020

IJETER

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The subject of the article is the task of developing a coherent signals processing method in the multiradar system of the same type two-coordinate surveillance radars with mechanical azimuthal rotation. The goal of the paper is solving the problem of developing a coherent signals processing method in multiradar system based on radars with mechanical rotation. It has been found that, in modern-day hybrid wars, founding a reliable air defence system is made much more difficult by the appearance of low radar cross section air objects. It is proposed to increase the energy potential of existing surveillance radars by integrating them into a spatially spaced coherent multiradar system. To ensure a consistent overview of the airspace, the locations of the radars are made in a single line with their synchronous azimuthal rotation. The transmitting signals must be simultaneously transmitted and orthogonal by frequency diversity or encoding. The synthesis of the optimal coherent signal finder is performed. The characteristics of detection of air objects in a multiradar system with mutually coherent signals are evaluated, when all radars emit identical signals in such a way that their common-purpose summation is secured. The following results were obtained: the highest efficiency in signal/noise gain was shown by the addition of a second radar, the optimum number of radars in the multi-radar system of no more than four. Therefore, the most cost-effective criterion is to create a spatially coherent multiradar system by combining two to four similar radars. In this case, the expected gain in the threshold signal-to-noise can be up to eighteen decibels. The use of more than four radars is impractical because it does not lead to a significant increase in the gain. The direction of further researches is the development of a non-coherent mutually processing signals method in a multiradar system-space spatially spaced two-coordinate radar observation stations with mechanical azimuthal rotation.

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“…From the experience of the Joint Forces operation in eastern Ukraine, it is known that small unmanned aerial vehicles (UAVs) in most cases were not detected by the available means of radar of radio troops [2][3][4][5][6][7], which form the basis of the air defence intelligence subsystem.…”

Section: Introductionmentioning

confidence: 99%

“…The world and domestic manufacturers of radar equipment implement the latest advances in science and technology: serial-parallel electronic survey of the area around the corner and two-dimensional electronic scanning of the antenna pattern, adaptive phased array antennas, digital synthesis of probe signals with different parameters, digital diagram [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Methods of signal processing in a multiradar system of the same type of two-coordinated surveillance radars

Khudov

Оваід

Lishchenko

et al. 2020

soi

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The subject of research in the paper is the problem of developing methods of signal processing in a multiradar system of the same type of two-coordinate surveillance radars with mechanical rotation. The aim of the paper is to improve the quality of detection of air objects by combining the same type of two-coordinate radars in a multi-radar system. It is proposed to combine the existing surveillance radar stations into a spatially spaced coherent multi-radar system. The synthesis of optimal detectors of coherent and incoherent signals is carried out. The characteristics of detection of air objects in a multi-radar system with compatible signal receiving have been evaluated. The obtained results: the addition of the second radar, regardless of the degree of signal coherence, showed the greatest efficiency in the gain in terms of signal / noise, the optimal number of radars in the multi-radar system is not more than four. The expected signal / noise threshold gain in a system of four radars can be up to eighteen decibels for a system with coherent signals and up to eleven decibels for a system with incoherent signals. The using of more than four radars is impractical.

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Proposals for Improving of Air Surveillance Informativity in MIMO Radar Systems Based on Two-Dimensional Radars

Cited by 20 publications

References 4 publications

The Optimization Technique for Joint Discrete Search and Detection of Observation Objects

The Optimization Technique for Joint Discrete Search and Detection of Observation Objects

The Coherent Signals Processing Method in the Multiradar System of the Same Type Two-coordinate Surveillance Radars with Mechanical Azimuthal Rotation

Methods of signal processing in a multiradar system of the same type of two-coordinated surveillance radars

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