Space vehicle navigation by means of GLONASS and NAVSTAR GPS signals

1Zhalilo, AA, 2Kot, PA, 2Minervin, IN, 2Nozdrin, IG, 2Piskorzh, VV, 2Rofvarg, LP
1Main Astronomical Observatory of the National Academy of Sciences of Ukraine, Kyiv, Ukraine; Kharkіv National University of Radio Electronics of the Ministry of Education and Science of Ukraine, Kharkiv,Ukraine
2Public Joint Stock Company «Research Institute of Radio Measurements», Kharkiv, Ukraine
Kosm. nauka tehnol. 1995, 1 ;(1):69–73
Publication Language: Russian
There is a tendency to use widely the equipment of Global Positioning Systems (GPS) GLONASS and NAVSTAR for different applications. One of these applications is the test and control of space vehicles. If the GLONASS and NAVSTAR are used together, the navigation field at altitudes of more than 5000 km is not continuous. In this case a pseudolite or a range and rate measuring device have to be used for accurate and reliable GPS positioning. Simulation estimates of GDOP probability and positioning accuracy of a space vehicle launched to the geosynchronous orbit are presented in this paper. The paper also outlines the features of operation with navigation satellites entering and leaving the Earth shadow.
Keywords: GLONASS, NAVSTAR GPS signals, Space vehicle navigation
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