EP 1685668 B1 20111214 - METHOD AND DEVICE FOR MONITORING CARRIER FREQUENCY STABILITY OF TRANSMITTERS IN A COMMON WAVE NETWORK
Title (en)
METHOD AND DEVICE FOR MONITORING CARRIER FREQUENCY STABILITY OF TRANSMITTERS IN A COMMON WAVE NETWORK
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ÜBERWACHUNG DER TRÄGERFREQUENZSTABILITÄT VON SENDERN IN EINEM GLEICHWELLENNETZ
Title (fr)
PROCEDE ET DISPOSITIF DE SURVEILLANCE DE LA STABILITE DE LA FREQUENCE PORTEUSE D'EMETTEURS DANS UN RESEAU DE FREQUENCES COMMUNES
Publication
Application
Priority
- EP 2004011869 W 20041020
- DE 10354468 A 20031121
Abstract (en)
[origin: WO2005050882A1] The invention relates to a method which monitors carrier frequency stability (omegai) of identical transmitter signals (si (t) ) in several transmitters Si of a common wave network. Said method is based on a calculation of carrier frequency displacement (DeltaomegaI) of carrier frequency (omegai) in a transmitter (Si) in relation to carrier frequency (omega0) in a reference transmitter (S0). The phase displacement difference (DeltaDeltathetai (tB2-tB1) ) caused by carrier frequency displacement (Deltaomegai) between phase displacement (Deltaomegai (tB1) ) is determined in order to form a moment of observation (tB1), and phase displacement (Deltathetai (tB2) ) is determined at a second moment of observation (tB2) of a received signal (ei (t)) in the transmitter (Si) associated with the respective transmitter signal (si (t) ) in order to form a received signal (e0(t)) of the reference transmitter (S0) associated with the reference transmitter signal (s0(t)).
IPC 8 full level
H04H 20/67 (2008.01)
CPC (source: EP US)
H04H 20/67 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005050882 A1 20050602; AT E537622 T1 20111215; CN 100596040 C 20100324; CN 1849760 A 20061018; DE 10354468 A1 20050623; DK 1685668 T3 20120402; EP 1685668 A1 20060802; EP 1685668 B1 20111214; ES 2376174 T3 20120309; JP 2007515870 A 20070614; JP 4376268 B2 20091202; US 2007104281 A1 20070510; US 7668245 B2 20100223
DOCDB simple family (application)
EP 2004011869 W 20041020; AT 04790677 T 20041020; CN 200480025939 A 20041020; DE 10354468 A 20031121; DK 04790677 T 20041020; EP 04790677 A 20041020; ES 04790677 T 20041020; JP 2006540209 A 20041020; US 58018104 A 20041020