Methods of high-precision direction finding of satellite retransmitter using the emitting signal of the satellite

Аuthors

Annenkova I. U.

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

Abstract

Method of improvement of the satellite system’s characteristics. Measurement ambiguity of the retransmitter location in the satellite communication systems («Milstar» and « Globalstar») was selected as the main object of research. The present paper gives the results of the research of the methods of resolving ambiguity problems with respect to structure of the satellite retransmitter signal («Milstar») and mode of operation with multiple subscribers on different frequencies of the «Globalstar» retransmitter. Numerical characteristics of satellite retransmitter location measurement error according to distance between two antennas of the analyser are obtained.

Keywords:

frequency hopping, satellite systems, locatio of emitting source, measurement errors, polar pattern of antenna, geoatationary orbit, location measurement error, multifrequence signal, distance between two antennas of the analyser, discriminatory characteristic.