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 ◽  
...  
Author(s):  
A. V. Ryapolov ◽  
N. V. Fambulov

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


Author(s):  
Ірина Борисівна Чичкало-Кондрацька ◽  
Вікторія Вікторівна Добрянська ◽  
Володимир Тарасович Мірошниченко

UDC 69.003:658.8  Chychkalo-Kondratska, D.Sc. (Economics),Professor.      V. Dobryanskaya,       PhD       (Technical),Associate Professor. V. Miroshnichenko, Senior Lecturer. Poltava National Technical Yurii Kondratyuk University. Satellite navigation system marketing. Satellite navigation system was developed as a defense project, but in recent decades, has formed a global market of users of satellite navigation systems, and manufacturers of navigational equipment. The article is devoted to analysis of market prospects by the European satellite navigation system Galileo. Conducted SWOT-analysis, allowed to conclude that the project «Galileo» has advantages and problems. The main problem is the complexity of creating a satellite constellation, because Europe does not have its own reliable and cheap launch vehicles. The solution may be the inclusion in the draft of Ukraine, who has processed technology of rocketry.   Keywords: marketing, the global market, investment project, satellite navigation systems, launch vehicles, SWOT-analysis, marketing of the project.


2011 ◽  
Vol 41 (5) ◽  
pp. 629-634 ◽  
Author(s):  
Liang YUAN ◽  
HengLin CHU ◽  
QingTao GU ◽  
Wei ZHAO ◽  
HongBing WANG

1977 ◽  
Vol 30 (2) ◽  
pp. 246-280 ◽  
Author(s):  
J. A. Cestone ◽  
R. J. Cyr ◽  
Gordon Roesler ◽  
E. St. George

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.


1967 ◽  
Author(s):  
James C. Blair ◽  
Jerome R. Redus

Sign in / Sign up

Export Citation Format

Share Document