Abstract
The paper considers joint software processing of signals from global (GLONASS, GPS, BeiDou, Galileo) and regional (IRNSS) navigation satellite systems. A general block diagram of the prototype multiconstellation software-defined radio (SDR) is presented; its capabilities to process signals from navigation systems are discussed. The developed SDR allows for separate and combined navigation solutions using signals received in Russia’s North-West from 30 satellites of 5 different navigation systems. The accuracy of these solutions and the DOP values are analyzed.
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