Promising Aircraft Navigation Systems with Use of Physical Fields: Stationary Magnetic Field Gradient, Gravity Gradient, Alternating Magnetic Field

Karshakov, E. V.; Pavlov, B. V.; Papusha, I. A.; Tkhorenko, M. Yu.

doi:10.23919/icins43215.2020.9133854

Cited by 4 publications

(4 citation statements)

References 33 publications

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“…Перспективную морскую навигацию можно эффективно осуществлять на основе измерений градиента естественного планетарного магнитного поля с использованием показаний бортовых магнитных градиентометров [50]. Градиентные измерения играют важную роль в современных КЭНС, а в будущих приложениях корреляционно-экстремальной навигации влияние феномена градиента будет только усиливаться [51]. Исследования в этой области позволят преодолеть существующие препятствия в магнитном картографировании в мировом масштабе и, как следствие, реализовать повышение точности магнитной навигации.…”

Section: обсуждение (Discussion)unclassified

“…Следует отметить, что для целей навигации особый интерес представляют системы измерения градиента физического поля [51]. Использование в практических приложениях измерений магнитного градиентометра, не требующего информации о положении датчика, является экономичным для технического оснащения судовождения, поскольку позволяет определять местоположение мобильных объектов при отсутствии на борту инерциальных навигационных систем.…”

Section: обсуждение (Discussion)unclassified

“…Использование в практических приложениях измерений магнитного градиентометра, не требующего информации о положении датчика, является экономичным для технического оснащения судовождения, поскольку позволяет определять местоположение мобильных объектов при отсутствии на борту инерциальных навигационных систем. Градиентометрический способ тензорной съемки стационарного геомагнитного поля над безориентирной морской поверхностью необходимо признать перспективным для оптимального картирования эталона информативности диполя движущегося объекта, который по точности и чувствительности не уступает измерениям параметров модуля магнитной индукции [52], [53]. При использовании градиентной карты магнитного поля достижимая точность корреляционно-экстремальной навигации составляет 10 м, а потенциальная погрешность по интервальным корреляционным данным измерений градиента модуля индукции магнитного поля на высоте 70 м для экспериментальной территории в Восточной Сибири оценивается в 2 м [54].…”

Section: обсуждение (Discussion)unclassified

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Cybernetic Security of Alternative Offline Navigation From the Standpoint of Spline Technology

Yuyukin

2022

jour

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The issues of cybernetic security are considered in the aspect of effective proposals of alternatives to the satellite system in order to be able to promptly reorient to a backup positioning system in case of any technical problems. The assessment of the use of computer-specific competencies in the field of information technologies of the marine fleet as a secondary factor of end-to-end cybernetic security management is given. Information processing in a duplicate analogue of the positioning system is based on the technology of spline functions in order to extract the advantages of piecewise approximation for practical navigation purposes. The functionality of the navigator is analyzed within the framework of the «augmented reality technology» of the bridge of the future with the possibility of observational fixation of the look of the watch officer based on improved virtual professional scenarios against the background of the flow of typical navigation information. In addition to alternatives to the traditional positioning system, the requirements of space all-weather, system noise immunity and round-the-clock use in emergency situations, military conflicts and man-made disasters are formulated. In the circumstances of uncertainty of satellite systems, the problems of their vulnerability are theoretically leveled due to the intended use of navigation equipment based on other physical principles of operation. Correlation-extreme navigation through natural geophysical fields, the innovative e-LORAN project and the means of celestial navigation automated on the basis of computing resources of the onboard computer are highlighted as promising variants of the autonomous positioning principle. The research carried out in this work is combined with the results of experiments within the framework of the magnetic navigation project on the practical implementation of autonomous aviation positioning. Validation of the characteristics of the isotropic field as an informative standard of correlation-extreme navigation is confirmed by practical implementations of various fragments of geophysical fields in the form of three-dimensional visualizations of spline synthesis. The accuracy of geolocation with «terrain-referenced navigation» by extreme indicators is analysed. The forecast of achievability of the predictability effect of a mobile object location in a satellite-based environment is given with optimal motion control using predictive modeling, provided that an accurate assessment of the uncertainty of the navigation system is foreseen. The algorithms tested on the methods of spline functions to ensure authoritative positioning are performed as an intellectual support for the ship’s management staff in an emergency situation.

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Section: обсуждение (Discussion)unclassified

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Cybernetic Security of Alternative Offline Navigation From the Standpoint of Spline Technology

Yuyukin

2022

jour

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“…The aided navigation method based on the geophysical field provides a new idea and means to solve this problem [ 5 , 6 , 7 ]. The marine gravity field and geomagnetic field are two kinds of geophysical fields that we are mainly concerned about.…”

Section: Introductionmentioning

confidence: 99%

An Aided Navigation Method Based on Strapdown Gravity Gradiometer

Gao

Chang

et al. 2021

Sensors

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The gravity gradient is the second derivative of gravity potential. A gravity gradiometer can measure the small change of gravity at two points, which contains more abundant navigation and positioning information than gravity. In order to solve the problem of passive autonomous, long-voyage, and high-precision navigation and positioning of submarines, an aided navigation method based on strapdown gravity gradiometer is proposed. The unscented Kalman filter framework is used to realize the fusion of inertial navigation and gravity gradient information. The performance of aided navigation is analyzed and evaluated from six aspects: long voyage, measurement update period, measurement noise, database noise, initial error, and inertial navigation system device level. When the parameters are set according to the benchmark parameters and after about 10 h of simulation, the results show that the attitude error, velocity error, and position error of the gravity gradiometer aided navigation system are less than 1 arcmin, 0.1 m/s, and 33 m, respectively.

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