Перевод названия: Determination of the spatial orientation of surface and space objects
Тип публикации: статья из журнала
Год издания: 2016
Ключевые слова: определение пространственного положения, углы азимута, крена и тангажа, навигационные спутниковые системы, диаграмма направленности, антенные решетки, definition of spatial position, angles of azimuth, pitch and roll, satellite navigation systems, radiation pattern, antenna arrays
Аннотация: Представлены результаты разработки устройства для определения не только местоположения объекта по сигналам глобальных навигационных спутниковых систем (ГЛОНАСС и GPS), но и его пространственного положения с повышенной точностью и помехоустойчивостью, причем объект может быть как наземным, воздушным, так и космическим, подвижным или нет. The emergence of global navigation satellite systems (GNSS) GLONASS and GPS and the development of the theory of high-precision phase measurements of the distances allowed, in General, solve the problem of attitude determination as stationary and movable objects. However, as the theoretical calculations and practical implementation of navigation devices with the ability to determine the spatial orientation of objects more vulnerable to these measurements showed the level of influencing entrance equipment interference compared with simple navigation measurements of location objects. It was also shown that in order to improve the accuracy of spatial dimensions to significantly reduce hardware errors encountered during processing of Navigation GNSS signals, using all the energy as much as possible nautical signals from multiple navigation spacecraft (NCA) concurrency. Advantages of the proposed technical solution involves using the channel for the reception and processing of signals with one signal processing circuit (due to the introduction of the device N modulators and Adder), resulting in increased accuracy of information parameters by eliminating errors due to several signal processing paths are not identical. The proposed device also suppresses any different in structure (signal level, type of modulation, the corner of the parish, etc.) from NCA GLONASS or GPS, through the development of Adaptive directional pattern with minimal sensitivity towards the arrival of interference, and with a maximum-in the direction of arrival of the signals from the GLONASS or GPS NCA. When you do this at the expense of signal processing in one tract definition signal parameters and interference occurs with greater accuracy, resulting in more accurate formation of Adaptive directional diagrams and, consequently, a better suppression of noise equivalent to improve signal-to-noise ratio. The result of all these factors leads to increased accuracy of the main outcome of the proposed device is to determine the spatial orientation of the object. Described in article device provides the definition of the spatial orientation of an object with a high accuracy relative to known technical solutions by eliminating systematic errors in the admission of the navigation signal sources on different elements of the antenna array and processing them into different foster tracts caused by not identical suction ducts signal processing from different elements of the antenna array, including, not identical to analog-to-digital converters. When this random error, at least not getting worse compared to the known way, as in the proposed device not appear in monitoring breaks a signal from one source, that is preserved as far as possible the signal/noise ratio due to the use of all incoming energy signal. Through further processing and adaptive beam forming antenna array with a minimum sensitivity towards joining interference suppressing these jammers device has proposed increasing the signal/noise ratio compared to devices with separate antennas and without the use of adaptive signal processing to interference. The proposed device allows with minimal hardware costs increase by an order of magnitude or more measurement accuracy of angles of arrival of signals from the NCA and, accordingly, reduce error of determine the direction of the satellite, as well as the spatial orientation of the object. And the definition of spatial orientation of an object in the proposed device is carried out on the signals of two GNSS GLONASS and GPS, which also increases the accuracy and reliability of measurements.
Журнал: Успехи современной радиоэлектроники
Выпуск журнала: № 11
Номера страниц: 118-122
ISSN журнала: 20700784
Место издания: Москва
Издатель: Закрытое акционерное общество Издательство Радиотехника
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