New Development in Satellite Navigation Equipment for Offshore Exploration

1969 ◽  
Author(s):  
Joseph Chernof
Keyword(s):  
Satellite Navigation ◽  
New Development ◽  
Navigation Equipment

On the feasible development of gimballess control systems for launch vehicles using GPS satellite navigation equipment

2015 ◽  
Vol 21 (6(97)) ◽  
pp. 3-12
Author(s):  
А.V. Degtyarev ◽  
◽  
M.A. Degtyarev ◽  
S.A. Davydenko ◽  
A.L. Makarov ◽  
...  
Keyword(s):  
Control Systems ◽  
Satellite Navigation ◽  
Launch Vehicles ◽  
Navigation Equipment

scholarly journals Anti-jamming antenna array model for satellite navigation equipment

2018 ◽  
pp. 20-29
Author(s):  
A. V. Ryapolov ◽  
N. V. Fambulov
Keyword(s):  
Antenna Array ◽  
Satellite Navigation ◽  
Navigation Equipment ◽  
Weight Coefficients ◽  
Research Show

The paper introduces the brief results of modeling an antenna array designed to be used as part of anti-jamming satellite navigation equipment. The study describes the procedure for calculating the weight coefficients of the antenna array based on the orthogonalization of signal and jamming spaces. According to the weight coefficients found, the resultant antenna patterns are plotted. Findings of the research show the results of how the depth of sample accumulation influences the effectiveness of adaptation to the jamming environment

The measure technique research of the satellite navigation equipment time delay

2011 ◽  
Vol 41 (5) ◽  
pp. 629-634 ◽  
Author(s):  
Liang YUAN ◽  
HengLin CHU ◽  
QingTao GU ◽  
Wei ZHAO ◽  
HongBing WANG
Keyword(s):  
Time Delay ◽  
Satellite Navigation ◽  
Navigation Equipment ◽  
Measure Technique

Recent Developments in Acoustic Underwater Navigation

1977 ◽  
Vol 30 (2) ◽  
pp. 246-280 ◽  
Author(s):  
J. A. Cestone ◽  
R. J. Cyr ◽  
Gordon Roesler ◽  
E. St. George
Keyword(s):  
Satellite Navigation ◽  
Work Systems ◽  
Recent Developments ◽  
Acoustic Navigation ◽  
Underwater Navigation ◽  
Navigation Equipment ◽  
High Degree

Acoustic transponders are employed in underwater navigation in situations in which a high degree of accuracy is required. Typical applications include underwater search, mapping, photography by a submersible or a towed vehicle and positioning of underwater work systems. The network of transponders, of which there may be only two or three, or which may be very extensive, is implanted by a support ship or by a submersible. The network can be located geographically by a satellite navigation equipment to an accuracy of 0·25 nm. This accuracy (or even accuracy within ± 1 mile) is sufficient to locate the network after a period of disuse. Acoustic navigation of a vehicle is accomplished relative to the network, to accuracies of the order of several feet.

scholarly journals SATELLITE NAVIGATION EQUIPMENT FOR SOLAR SYSTEM OBJECTS EXPLORATION

2020 ◽  
Vol 1 (2) ◽  
pp. 128-139
Author(s):  
Stanislav O. Shevchuk ◽  
Elena S. Cheremisina ◽  
Nikolay S. Kosarev
Keyword(s):  
Solar System ◽  
Spherical Shape ◽  
Satellite Navigation ◽  
Satellite System ◽  
Navigation Systems ◽  
The Moon ◽  
System Realization ◽  
Satellite Navigation Systems ◽  
Navigation Equipment ◽  
Moon Exploration

The article contains the overview of perspective satellite navigation systems for other planets and objects of Solar System. The example of this conception for the Moon is considered. The paper contains the brief overview of Moon exploration perspectives. An overview of countries’ space agencies programs on the Moon with automatic and human missions. The problem of lunar and cislunar navigation is considered, the ways of its solution are overviewed. One of the possible cases for lunar and cislunar navigation system realization is to create the satellite system similar to the Earth’s GNSS using the existing experiences. The main goal of the article is the conception of lunar receiver designed for the lunar navigation satellite system in case it is similar to GLONASS. The formulas’ simplifications because of Moon’s features are considered, including: absence of atmosphere and as a result absence of ionospheric and tropospheric delays; more simple gravity field because of small flattering (almost spherical shape). The conclusions on perspectives of the lunar navigation are made.

scholarly journals Совершенствование технологии возделывания картофеля в системе точного земледелия

2019 ◽  
Author(s):  
A.I. Belenkov ◽  
E.V. Berezovsky ◽  
S.V. Zhelezova
Keyword(s):  
Precision Agriculture ◽  
Field Experience ◽  
Satellite Navigation ◽  
Precision Farming ◽  
Traditional Technology ◽  
Navigation Equipment

Приведены сведения о внедрении и освоении технологи точного земледелия на примере картофеля в полевом опыте Центра точного земледелия РГАУ – МСХА имени К.А. Тимирязева. Установлено, что при сравнении с традиционной технологией, с помощью точной лучше и качественнее проводить посадку картофеля и гребнеобразование по всходам с использованием спутникового навигационного оборудования системы GPS. Преимущество точной технологии проявилось в получении более высокой урожайности, которая превышала традиционную технологию, в среднем за годы исследований, на 0,8 т/га, при этом отвальная обработка опережала минимальную по точной технологии на 2,3 т/га, по традиционной - на 3.4 т/га.Information on the introduction and development of technology of precision farming on the example of potatoes in the field experience of the Center of Precision Agriculture of the RSAU – MTAA named after K.A. Timiryazev is given. It has been established that, when compared with the traditional technology, potatoes were planted and combed on shoots using GPS satellite navigation equipment, accurate, better and more qualitatively. The advantage of the exact technology manifested itself in obtaining higher yields, which exceeded the traditional technology, on average over the years of research, by 0.8 t/ha, while the dump processing was ahead of the minimum by exact technology by 2.3 t/ha, and by the traditional 3.4 t/ha.

scholarly journals Development of a methodological approach and software for information processing and experimental assessment of the accuracy of the “Sazhen-TA” measuring system

2020 ◽  
pp. 96-106
Author(s):  
S. M. Simonov ◽  
Yu. K. Kisin ◽  
A. V. Nekrasov ◽  
M. V. Shamshin
Keyword(s):  
Information Processing ◽  
Mathematical Modelling ◽  
Reference Data ◽  
Methodological Approach ◽  
Satellite Navigation ◽  
Measuring System ◽  
Experimental Assessment ◽  
Navigation Equipment

This paper presents algorithms for determining trajectory parameters using the information provided by the “Sazhen-TA” system. Issues associated with experimental assessment of the accuracy of the “Sazhen-TA” measuring system on the basis of reference data from satellite navigation equipment are considered. The results of mathematical modelling are presented.

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