Fremgangsmåde og indretning til overvågning af bærefrekvensstabilitet af sendere i et enkelt-bølge netværk

Fremgangsmåde og indretning til overvågning af bærefrekvensstabilitet af sendere i et enkelt-bølge netværk

The method for monitoring the stability of the carrier frequency (ωi) of identical transmitted signals (si(t)) of several transmitters Si of a single-frequency network is based upon a calculation of a carrier-frequency displacement ωi of a carrier frequency ωi of a transmitter Si relative to a carri...

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Hauptverfasser: HOFMEISTER, MARTIN, BALZ, CHRISTOPH
Format: Patent
Sprache:dan
Schlagworte:
BROADCAST COMMUNICATION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
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BALZ, CHRISTOPH
description The method for monitoring the stability of the carrier frequency (ωi) of identical transmitted signals (si(t)) of several transmitters Si of a single-frequency network is based upon a calculation of a carrier-frequency displacement ωi of a carrier frequency ωi of a transmitter Si relative to a carrier frequency ω0 of a reference transmitter S0. For this purpose, the phase-displacement difference ( Θi(tB2−tB1)) caused by the carrier-frequency displacement ωi between a phase displacement Θi(tB1) at a first observation time tB1 and a phase displacement Θi(tB2) at a second observation time tB2 of a received signal (ei(t)) of the transmitter Si associated with the respective transmitted signal (si(t)) is determined relative to a received signal e0(t) of the reference transmitter S0 associated with the reference transmitted signal s0(t).
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subjects BROADCAST COMMUNICATION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
title Fremgangsmåde og indretning til overvågning af bærefrekvensstabilitet af sendere i et enkelt-bølge netværk
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