P.V. Shtro, Y.L. Fateev

In this paper algorithms for code synchronization signal L1OC new format of the GLONASS system modeled and experimental research. Signals for simulation and testing of code synchronization algorithms are described. Two variants the code synchronization signal L1OC proposed. First the accumulation variant holds individually for the information components and the components of the pilot. In the second variant introduced an additional channel with an inverted information pseudorandom sequence. Simulation of the time discriminator (VD) performed. Discriminatory and fluctuation characteristics of time discriminator for first variant to the first variants of realization channel DSP L1OC presented. Also the dependence of the equivalent rms fluctuations for VD on signal-to-noise ratio for the first and second variant is shown. Comparison of the effectiveness of the algorithms code synchronization signal and the signal L1OC GLONASS standard accuracy (CT) was carried out. The results are shown experimental testing code synchronization algorithms derived from prototype of programmable navigation receiver and navigation imitator.