Methods for Ensuring the Accuracy of Radiometric and Optoelectronic Navigation Systems of Flying Robots in a Developed Infrastructure

Sotnikov, Oleksandr; Карташов, В. М.; Tymochko, Oleksandr; Sergiyenko, Oleg; Tyrsa, Vera; Mercorelli, Paolo; Flores-Fuentes, Wendy

doi:10.1007/978-3-030-22587-2_16

Cited by 15 publications

(15 citation statements)

References 34 publications

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“…In [5], models of radiometric CI and RI are presented, the possibility of reducing the influence of geometric distortions on the accuracy of positioning CENS is shown, algorithms for the formation of RI and a decisive function are proposed, the concept of an equivalent reference object is introduced, a method for forming the decision function of a combined CENS is developed, which is based on the implementation of preliminary processing CI consists in its stratification in accordance with the quantization threshold relative to the average value of the background radio brightness temperature and the construction of a set of selective images of a group of geometrically related objects with the determination of their average values of the brightness temperatures within the introduced equivalent object. At the same time, the authors disregarded the issues of using these informative features to fill the database of sighting surfaces.…”

Section: Analysis Of Literature Data and Problem Statementmentioning

confidence: 99%

The Creation of the Database for Mobile Robots Navigation under the Conditions of Flexible Change of Flight Assignment

Yeromina¹,

Kurban²,

Mykus³

et al. 2021

IJETAE

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The necessity to find a rational way of creating a database regarding the sighting surface taking into consideration the features of construction and functioning of correlation-extreme navigation systems (CENS) of aerial mobile robots (MR), including in particular the conditions of flexible change of flight assignment, is shown in the article. It is proposed to use invariants, which have been obtained based on a correlation analysis of the scene according to the brightness index with the subsequent and allowing to form selective images, as a database information content. The results of the evaluation of the quality of formed selective reference image (RI) for scenes with various object impletion under conditions of limitations in time and number of calculations are given

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Section: Analysis Of Literature Data and Problem Statementmentioning

confidence: 99%

The Creation of the Database for Mobile Robots Navigation under the Conditions of Flexible Change of Flight Assignment

Yeromina¹,

Kurban²,

Mykus³

et al. 2021

IJETAE

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“…The problem of synthesis of a digital filter was set. A solu-tion systems (SINS) which can be supplemented with both satellite navigation systems (SNS) and correlation-extreme navigation systems (CENS) [1]. However, despite the high accuracy indicators of SNS, their application for correction of UAV SINS is not always effective.…”

Section: The Expediency Of Using a Compensation Radiometer (Cr) With Periodic Absolute Calibration As A Sensor For Preprocessing The Infomentioning

confidence: 99%

“…Models of radiometric CI and reference images (RI) are given in [1]. The possibility of reducing the influence of geometric distortions on the accuracy of CENS positioning was shown.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Significant expansion of the scope of application of unmanned aerial vehicles (UAV) both in various sectors of the national economy and military affairs necessitates ensuring their effective functioning in various application conditions [1]. Modern high-precision UAV navigation systems are based on the application of strapdown inertial naviga-…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of an optimal digital filter of a compensation radiometer for radiometric correlation-extreme navigation systems of unmanned aerial vehicles

Yeromina

Petrov

Volk

et al. 2021

EEJET

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The expediency of using a compensation radiometer (CR) with periodic absolute calibration as a sensor for preprocessing the information of correlation-extreme navigation systems (CENS) of unmanned aerial vehicles (UAV) was shown. This is determined by the possibility of obtaining and using the estimates of gain fluctuations obtained in previous frames which will provide an increase in the radiometer sensitivity. In addition, due to the accumulation of information, an increase in accuracy of measurement of the elements of the current image formed by the CENS will be provided. The algorithm of processing the obtained calibration estimates during linear processing corresponds to a certain digital filter (DF). By defining a set of the DF weight coefficients, it is possible to improve the CR fluctuation sensitivity by reducing the gain fluctuations. Up to 1.8-time gain in sensitivity can be reached for typical frequency and time parameters of the compensation radiometer of UAV CENS. The problem of synthesis of a digital filter was set. A solution to the problem of synthesizing an optimal digital filter was proposed. Its use in a CR will improve the fluctuation sensitivity. In its turn, this will make it possible to improve the quality of a current image generated by the system when siting by means of sighting surfaces with low-contrast objects taking into account fluctuations in radio-brightness temperature. It was found that the gain in sensitivity when using the optimal digital filter increases with an increase in the operating period of the radiometer and an increase in the digital filter order. Improvement of fluctuation sensitivity of the CENS data preprocessing system is important for UAV location in low-contrast areas

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“…Оптический и инфракрасный методы имеют неплохие, но более скромные, чем радиолокационный метод, поисковые возможности. Они обеспечивают измерение пеленга, дальности, траектории и вектора скорости движения (по совокупности отметок целей), позволяют формировать «портреты» объектов в оптическом и инфракрасном диапазонах, используемые при решении задачи обнаружения-распознавания [6,7,17,19].…”

Section: постановка задачи комплексной обработкиunclassified

Complex processing of signals of integrated unmanned aerial vehicles surveillance system with the use of target designation

Карташов¹,

Oleinikov²,

Leonidov³

et al. 2020

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One of the urgent scientific and technical problems of our time is the development of methods and means of protecting various objects against the impact of unmanned aerial vehicles (UAVs) which carry a significant potential threat to various areas of human activity – military, economic and everyday life. Significant technical capabilities, a wide range and relatively low cost of UAVs, combined with the difficulties of their observation and control, are the main features of this problem. Currently, radar, acoustic, optical and infrared methods with the appropriate facilities are widely used to detect and observe unmanned aerial vehicles. The article discusses the information capabilities of each of the methods and tools that are a part of an integrated system for detecting, measuring coordinates and parameters of UAV motion. It is shown that the radar method has the best search capabilities, while optical, infrared and acoustic methods are inferior to it. An algorithm for sequential connection of information resources available in an integrated system is discussed, taking into account the availability of search capabilities of the relevant means. New effective methods of complex processing of multimodal signals and images in a complex integrated surveillance system for unmanned aerial vehicles, built taking into account the natural spatial separation of various information channels and using target designation, have been synthesized. The features of combining multimodal information with the use of neural network technologies when using target designations in an integrated system are shown.

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Methods for Ensuring the Accuracy of Radiometric and Optoelectronic Navigation Systems of Flying Robots in a Developed Infrastructure

Cited by 15 publications

References 34 publications

The Creation of the Database for Mobile Robots Navigation under the Conditions of Flexible Change of Flight Assignment

The Creation of the Database for Mobile Robots Navigation under the Conditions of Flexible Change of Flight Assignment

Synthesis of an optimal digital filter of a compensation radiometer for radiometric correlation-extreme navigation systems of unmanned aerial vehicles

Complex processing of signals of integrated unmanned aerial vehicles surveillance system with the use of target designation

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