EP 1685688 A2 20060802 - COHERENT TRACKING FOR FM IBOC RECEIVER USING A SWITCH DIVERSITY ANTENNA SYSTEM
Title (en)
COHERENT TRACKING FOR FM IBOC RECEIVER USING A SWITCH DIVERSITY ANTENNA SYSTEM
Title (de)
KOHÄRENTE VERFOLGUNG FÜR EINEN FM-IBOC-EMPFÄNGER DURCH VERWENDUNG EINES SCHALT-DIVERSITY-ANTENNENSYSTEMS
Title (fr)
SUIVI COHERENT DE RECEPTEUR IBOC FM A L'AIDE D'UN SYSTEME D'ANTENNES DE RECEPTION EN DIVERSITE PAR COMMUTATION
Publication
Application
Priority
- US 2004037944 W 20041112
- US 71558203 A 20031118
- US 87468104 A 20040623
Abstract (en)
[origin: WO2005050865A2] A method is provided for coherently tracking a radio signal including a plurality of digitally modulated reference subcarriers. The method comprises the steps of receiving symbols transmitted on the reference subcarriers, combining the reference subcarrier symbols with a known reference sequence conjugate to produce a plurality of samples, median filtering the samples to produce filtered samples, and smoothing the samples for each of the reference subcarriers over the plurality of reference subcarriers to produce a coherent reference signal estimate for each of the subcarriers. A receiver for coherently tracking a radio signal including at least one digitally modulated reference carrier is also provided.
IPC 8 full level
H04L 27/26 (2006.01); H04B 7/08 (2006.01); H04L 25/02 (2006.01)
CPC (source: EP KR)
H04B 7/0868 (2013.01 - KR); H04B 17/20 (2015.01 - KR); H04L 25/0224 (2013.01 - KR); H04L 27/2655 (2013.01 - EP KR); H04L 27/2675 (2013.01 - EP KR); H04L 25/0224 (2013.01 - EP)
Citation (search report)
See references of WO 2005050865A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005050865 A2 20050602; WO 2005050865 A3 20050915; AR 046710 A1 20051221; AU 2004311099 A1 20050602; AU 2004311099 B2 20091001; BR PI0416666 A 20070116; CA 2545546 A1 20050602; EP 1685688 A2 20060802; JP 2007511980 A 20070510; KR 20060100422 A 20060920; NZ 547929 A 20080328; RU 2006121497 A 20071227; RU 2373660 C2 20091120
DOCDB simple family (application)
US 2004037944 W 20041112; AR P040104244 A 20041117; AU 2004311099 A 20041112; BR PI0416666 A 20041112; CA 2545546 A 20041112; EP 04810923 A 20041112; JP 2006541281 A 20041112; KR 20067009607 A 20060517; NZ 54792904 A 20041112; RU 2006121497 A 20041112