A New Technology For Orbit Determination From Navigation Data And Its Advantages Over Conventional Ones
- Paper number
IAC-06-B3.1.07
- Author
Dr. Anatoly Sheptun, Yuzhnoye State Design Office, Ukraine
- Coauthor
Dr. Michael Zhechev, Institute of Technical Mechanics, Ukraine
- Coauthor
Mr. Oleg Ventskovsky, Yuzhnoye SDO European Representation, Belgium
- Coauthor
Mr. Igor Mashtak, Yuzhnoye State Design Office, Ukraine
- Coauthor
Dr. Nikolay Gorev, Institute of Technical Mechanics, Ukraine
- Year
2006
- Abstract
In spite of the rapid advancement of space science, the state-of-the-art accuracy of determination of the position and velocity of both ground and space objects is still inadequate for a number of important applications such as navigation, earth remote sensing, cartography, oceanography, etc.\\ The technology is based on a "know-how". The main advantages of the proposed technology are as follows:\\ -Higher position/velocity measurement accuracy due to a radically new methodology of measurement data array processing, which allows one to considerably reduce the confidence interval of the sought-for parameters, this advantage becoming more pronounced as the measurement array size increases.\\ -Adequate solution to the problem of carrier phase ambiguity without recourse to any extra facilities.\\ -The form and parameters of the measurement error distribution law need not be known a priori, as distinct from conventional measurement data processing methods (for example, the least-squares method (LSM)).\\ -Simplicity and visualization capability, which offer higher efficiency of planning and measurement data reduction.\\ The area of application of this technology is a wide variety of identification problems, in particular:\\ -Determination of the position and velocity of ground and space objects from navigation data.\\ -Determination of the state of various mechanical, physical, biological and other objects from measurement data.\\ The technology has been tested to determine the orbit of an operational spacecraft from the data measured by a ground station. Work is currently under way on determining spacecraft orbit from navigation satellite data (Galileo, GPS, etc.).
- Abstract document