FIELD: radio engineering and communications.
SUBSTANCE: satellite navigation signal generation device includes baseband signal, multiplexed signal generator and modulator, baseband signal generator is designed to generate first signal S1 of main frequency band, second signal S2 main frequency band, third signal S3 of main frequency band and fourth signal S4 main frequency band, multiplexed signal generator is intended for setting amplitude and phase-phase component of main frequency band and amplitude and phase quadrature component baseband signal, in which first signal S1 of main frequency band, second signal S2 main frequency band, third signal S3 of main frequency band and fourth signal S4 main frequency band are multiplexed, in order to form multiplexed signal at constant envelope, modulator is intended for multiplexed signal frequency modulation at constant envelope in order to generate satellite navigation signal, first signal S1 of main frequency band and second signal S2 baseband modulated first carrier frequency f1 with mutually orthogonal phases, and third signal S3 of main frequency band and fourth signal S4 baseband modulated second carrier frequency f2 with mutually orthogonal phases.
EFFECT: invention is intended for multiplexing into signal with constant envelope of several signals with direct spectrum spreading sequence.
28 cl, 11 dwg
