SYMMETRY BETWEEN SOME METHODS OF AUTONOMOUS NAVIGATION OF SPACECRAFT AND METHODS OF DETERMINING THEIR POSITION FROM THE EARTH
M.E. Prokhorov, A.I. Zakharov, I.V. Kuznetsova
Sternberg Astronomical Institute of Moscow State University, Moscow, Russia
Keywords: space navigation, autonomous navigation, positional observations, orbit determination, triangulation network, beacon net
Abstract
It is found that, for some non-autonomous methods of navigation in space, there are autonomous methods “symmetrical” to them, in which all measurements are carried out only from the board of the spacecraft whose position is determined. In this case, the measurement results obtained in the corresponding non-autonomous methods are reproduced. Since the instant of obtaining the same type of measurements, processing in both "symmetric" methods is carried out according to identical algorithms. Two pairs of such methods are considered. The difference in the degree of "symmetry" and the possibility of using intermediate data for processing observations are discussed.
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