FIELD: physics, navigation.
SUBSTANCE: invention relates to satellite navigation and can be used in navigation equipment of GLONASS and GPS global satellite navigation system signal users, including equipment installed on-board spacecraft. The receiver includes a built-in system for monitoring the performance of the receiving-amplifier circuit and calibrating group time delay in receiving circuits of GLONASS and GPS navigation signals. The structure of the simulation circuit is changed by introducing a frequency synthesizer and broadband high-speed digital-to-analogue conversion, which enable to generate simulation signals simultaneously for two analogue signal processing circuits. Heterodyne frequency switches and a mixer are excluded.
EFFECT: simple design of the receiver of the equipment of global satellite navigation system signal users and faster monitoring of the performance thereof.
1 dwg
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