公开(公告)号：WO2004107603A2

公开(公告)日：2004-12-09

申请号：PCT/FR2004001296

申请日：2004-05-25

Applicant: TELEDIFFUSION FSE ,  LANOISELEE MARC ,  LOUIN PIERRICK

Inventor： LANOISELEE MARC ,  LOUIN PIERRICK

IPC: H04H20/46 ,  H04L27/26 ,  H04B7/00

CPC classification number: H04H20/46 ,  H04H20/22 ,  H04H2201/12 ,  H04H2201/186 ,  H04L27/2601

Abstract: The invention relates to a radio broadcast method for a multi-carrier digital signal (51), occupying a first frequency band adjacent to at least one second frequency band, each allocated for a second signal (52, 53), said, or at least one of said second signals being an analogue radio broadcast signal. A pre-filtering (54, 55) is applied to the first signal before the transmission thereof, such as to attenuate the power of said first signal at least in a first portion of said first frequency band, adjacent to the second frequency band(s).

Abstract translation: 本发明涉及一种用于多载波数字信号（51）的无线电广播方法，该多载波数字信号占用与至少一个第二频带相邻的第一频带，每个分配给第二信号（52,53），或至少 所述第二信号之一是模拟无线电广播信号。 在其发送之前对第一信号应用预滤波（54,55），例如至少在与第二频带相邻的所述第一频带的第一部分中衰减所述第一信号的功率 ）。

公开(公告)号：WO2005011144A2

公开(公告)日：2005-02-03

申请号：PCT/FR2004001900

申请日：2004-07-16

Applicant: TELEDIFFUSION FSE ,  JAHAN BRUNO ,  LOUIN PIERRICK

Inventor： JAHAN BRUNO ,  LOUIN PIERRICK

IPC: H04L25/02 ,  H04L27/00 ,  H04L27/26 ,  H04B7/005

CPC classification number: H04L25/0232 ,  H04L25/022 ,  H04L27/2647 ,  H04L27/2657 ,  H04L2027/003 ,  H04L2027/0093

Abstract: The invention relates to a method for estimating a propagation channel composed of successive symbols of a multicarrier signal, each comprising at least one reference pilot (513) and a plurality of data-carrying frequencies. Such a method comprises, in particular, at least one step consisting of correcting the at least one reference pilot (513) on the basis of a first estimation of a propagation channel (516), in order to provide a second, more precise estimation of said channel (516).

Abstract translation: 本发明涉及一种用于估计由多载波信号的连续符号组成的传播信道的方法，每个信号包括至少一个参考导频（513）和多个数据携带频率。 这种方法特别包括至少一个步骤，该步骤包括基于传播信道（516）的第一估计来校正至少一个参考导频（513），以便提供第二更准确的估计 所述通道（516）。