MULTIFREQUENCY PHASE AUTOMATIC CONTROL SYSTEM Russian patent published in 2021 - IPC G01S19/24 H03L7/06 H03L7/08 

FIELD: satellite technologies.

SUBSTANCE: invention relates to satellite technologies for location determination and processing of radio navigation signals. For this digital system phase-locked loop, forming individual contour tracking, introduced m individual contours for tracking phases of received signals, where m=1…i, the general contour tracking for base frequency, containing vector multiplier, filters γ and α, the filter γ performed to determine the base frequency, to obtain estimates vector of received signals phase and vector of frequencies estimates of received signals, the unit of coefficients calculation α, β and γ for filters.

EFFECT: invention increases noise immunity of signal phase tracking system emitted by one navigation spacecraft (NSC) of satellite navigation systems, both at the same and at different carrier frequencies, to increase accuracy of signal measuring phases of received signals and to increase energy in phase tracking circuit of signals.

1 cl, 3 dwg