ACTIVITIES OF THE RUSSIAN INSTITUTE OF RADIONAVIGATION AND TIME IN DEVELOPMENT OF GLONASS ONBOARD Q-ENHANCED OSCILLATING COMPACT H-MASER

摘要

The paper describes a new type of on-board atomic frequency standard developed by the Russian Institute of Radionavigation and Time (RIRT). This is Q-enhanced oscillating compact H-maser with dimensions and weight less than those of GLONASS Cs clock. The multifactor optimization of maser's main building block construction and physical parameters has been carried out, which enabled one to lower weight of H-maser physical package down to 10 kg. The forecast enhanced performance has been obtained and attainable daily frequency stability of the H-maser comprised 10~(-14). The latteris by an order of magnitude higher than that of Cs clock. Reduced dimension of developed maser will allow to substitute Cs clock by H-clock in GLONASS satellite and will provide progress in this field.