scholarly journals Adaptive Ionospheric Pierce Point Cut-off Radius Control for Korean Satellite Navigation Systems

2015 ◽  
Vol 58 (3) ◽  
pp. 129-135
Author(s):  
Jungmin JOO ◽  
Moonbeom HEO ◽  
Hyochoong BANG
Keyword(s):  
Satellite Navigation ◽  
Navigation Systems ◽  
Pierce Point ◽  
Satellite Navigation Systems

Optimal Processing of Information from Inertial and Satellite Navigation Systems by Analysis after Flight

2001 ◽  
Vol 56 (3) ◽  
pp. 13
Author(s):  
E. G. Kharin ◽  
V. G. Maslennikov ◽  
N. B. Vavilova ◽  
I. A. Kopylov ◽  
A. Ch. Staroverov
Keyword(s):  
Satellite Navigation ◽  
Navigation Systems ◽  
Optimal Processing ◽  
Satellite Navigation Systems

REVIEW OF SATELLITE-FREE NAVIGATION SYSTEMS

2018 ◽  
pp. 20-24
Author(s):  
M. K. Savkin ◽  
A. R. Filatov
Keyword(s):  
Satellite Navigation ◽  
Navigation Systems ◽  
Military Operations ◽  
Advantages And Disadvantages ◽  
Working Principle ◽  
Satellite Signal ◽  
Satellite Navigation Systems ◽  
Insufficient Number

Nowadays majority of navigation methods, used in unmanned flying vehicles, are based on satellite navigation systems, such as GPS or GLONASS, or are amplified with them. But hardware, that uses such systems, can’t work in difficult conditions, for example causes by relief: with insufficient number of satellites or at low satellite signal. Satellite navigation systems are vulnerable for methods of radio defense: satellite signal can be deadened or replaced. That is why such systems usage is unacceptable while critical missions during military operations, emergency or reconnaissance. The article briefly describes components used for building alternative satellite-free navigation systems for flying vehicles. For each component its purpose and brief description of working principle are given, advantages and disadvantages are considered.

Assessment of the Potential of Satellite Navigation Systems for Europe Results of a Study for the European Commission

1994 ◽  
Vol 47 (3) ◽  
pp. 295-304
Author(s):  
Hubert Stich ◽  
Walter Blanchard ◽  
Wolfgang Lechner ◽  
Detlef Kayser ◽  
Henry Gaillard
Keyword(s):  
European Commission ◽  
Satellite Navigation ◽  
Navigation Systems ◽  
Satellite Navigation Systems

This paper and the following five papers were presented at the DSNS-94 Conference organized by the Institute from 18–22 April in London. The full proceedings, including some 78 papers, are available from the Director, price £40 (exc. P&p).

Aerodynamic Errors Mathematical Modeling in Air Data Systems Estimation Technology in Flight Tests Using Satellite Navigation Systems

2021 ◽  
Vol 22 (5) ◽  
pp. 272-280
Author(s):  
S. G. Pushkov ◽  
L. L. Lovitsky ◽  
O. Y. Gorshkova ◽  
I. V. Malakhova
Keyword(s):  
Mathematical Modeling ◽  
Mathematical Models ◽  
Pressure Sensors ◽  
Satellite Navigation ◽  
Navigation Systems ◽  
General Description ◽  
Data Systems ◽  
Flight Tests ◽  
Satellite Navigation Systems ◽  
High Angles Of Attack

Problems of mathematical modeling of onboard air data systems errors are of paramount importance in pitot-static sources errors determination, air data systems evaluation in flight tests. The problems of development, identification and assessment of the mathematical models of errors adequacy acquire main importance in the modern technology of the air parameters true values determination, air data systems evaluation using satellite navigation systems, developed and applied in the practice of flight tests at JSC "FRI n.a. M. M. Gromov". This paper gives a general description of an air data systems estimation technology using satellite navigation systems. The principles of solving problems of aircraft data systems aerodynamic errors mathematical modeling are stated. The structure of mathematical models, factors of the aerodynamic errors, relationship of the solving problems of errors modeling within the framework of technology with a flight experiment plan are shown. Mathematical models parameters identification are based on a complex solving of the problems of a true air data parameters values and aerodynamic errors determination in flight tests. New results of mathematical modeling of errors in tests at high angles of attack in 2018 year of medium-range and short-range aircraft are presented. The results illustrate the technology effectiveness in solving the problems of flight tests at high angles of attack information support, aerodynamic errors modeling, air data systems estimation. The applied modeling methods make it possible to allocate in the mathematical models of pitot-static sources aerodynamic errors even the factors of very weak aerodynamic influence, comparable with the minimum pressure sensors instrumental errors.

Sign in / Sign up

Export Citation Format

Share Document