公开(公告)号：US07272188B2

公开(公告)日：2007-09-18

申请号：US10381178

申请日：2001-09-20

申请人： Dominique Lacroix-Penther ,  Pierre Combelles ,  Michel Alard

发明人： Dominique Lacroix-Penther ,  Pierre Combelles ,  Michel Alard

IPC分类号： H04L27/28

CPC分类号： H04L27/2613 ,  H04L27/2698

摘要： A multicarrier signal, which includes a temporal succession of symbols formed by a set of data elements, each of said data elements modulating a carrier frequency of the signal. The data elements include reference elements called pilots, whereof the value in transmission is known to at least one receiver designed to receive the signal and informative data elements, whereof the value in transmission is not known a priori to the at least one receiver. One of the caffier frequencies is modulated, at a given time, by one of the data elements, being called a carrier. At least one constraint is imposed on the value of at least one of the informative data elements, so as to reduce, in reception, at least one term of interference affecting at least one of the pilots.

摘要翻译： 一种多载波信号，其包括由一组数据元素形成的符号的时间序列，每个所述数据元素调制该信号的载波频率。 数据元素包括称为导频的参考元件，其中传输中的值对于设计用于接收信号的至少一个接收器和信息数据元素是已知的，其中传输中的值先于该至少一个接收器是未知的。 在给定时间，通过被称为载体之一的数据元素中的一个来调制其中一个卡费尔频率。 对至少一个信息数据元素的值施加至少一个约束，以便在接收时减少影响至少一个导频的至少一个干扰项。

公开(公告)号：US06529783B1

公开(公告)日：2003-03-04

申请号：US09508140

申请日：2000-03-07

申请人： Pierre Combelles ,  Bertrand Sueur ,  Dominique Lacroix

发明人： Pierre Combelles ,  Bertrand Sueur ,  Dominique Lacroix

IPC分类号： G05B1302

CPC分类号： H04L27/2657 ,  H04L27/2675

摘要： A method for estimating an interference phase shift when receiving a multicarrier signal formed of a time series of symbols modulating a plurality of carrier frequencies, at least some of the carrier frequencies of at least some of the symbols bearing reference elements, whereof the value at transmission level is known by the receiver carrying out the reception. The phase variation &dgr;n between at least two symbols bearing reference elements is estimated by analysing the reference elements. Each of the reference elements in the estimation is weighted by information representing the noise affecting the carrier frequency bearing the reference element.

摘要翻译： 一种用于在接收由调制多个载波频率的时间序列符号形成的多载波信号时估计干扰相移的方法，所述多载波信号至少部分载有参考元件的符号中的至少一些的载波频率，其中传输值 由接收机进行接收来知道电平。 通过分析参考元素来估计具有参考元素的至少两个符号之间的相位变化Δtan。 估计中的每个参考元素由表示影响载有参考元素的载波频率的噪声的信息加权。

公开(公告)号：US06938064B1

公开(公告)日：2005-08-30

申请号：US09581272

申请日：1998-12-07

申请人： Ali Jalali ,  Pierre Leray ,  Dominique Lacroix

发明人： Ali Jalali ,  Pierre Leray ,  Dominique Lacroix

IPC分类号： G06F17/14

CPC分类号： G06F17/142

摘要： A method of calculating the fast Fourier transform or the inverse fast Fourier transform of a series of N real samples x(n), with N power of two, operating according to a time interleaving algorithm and providing the sample series X(n) in ascending order to index n and using limited calculating storage means. A method of calculating the fast Fourier transform or the inverse fast Fourier transform of a series of N conjugated complex samples X(n), with N power of two, operating according to a frequency interleaving algorithm.

摘要翻译： 一种根据时间交织算法计算N个N值为2的一系列N个实数样本x（n）的快速傅立叶变换或快速傅立叶逆变换的方法，并且以升序提供样本序列X（n） 索引n并使用有限的计算存储手段。 一种根据频率交织算法运算的N个二次幂的N个共轭复样本X（n）的一系列快速傅立叶变换或快速傅里叶反变换的方法。

公开(公告)号：US07292642B2

公开(公告)日：2007-11-06

申请号：US10380899

申请日：2001-09-20

申请人： Alberto Gonzalez ,  Dominique Lacroix-Penther

发明人： Alberto Gonzalez ,  Dominique Lacroix-Penther

IPC分类号： H04L23/02 ,  H04L5/12

CPC分类号： H04L27/2613

摘要： The invention relates to a multicarrier signal consisting of a temporal succession of symbols formed by a set of data elements, each of said data elements modulating a carrier frequency of said signal, said symbols being organized in successive frames each comprising a plurality of symbols, one of said carrier frequencies modulated, at a given point in time, by one of said data elements being called a carrier.According to the invention, at least some of said frames each comprise at least one reference symbol integrally consisting of reference data elements known at least to one receiver and complying with at least one constraint on the value of at least one of said reference data elements, so as to obtain the reduction, at reception, of at least one interference term affecting at least another of said reference data elements.

摘要翻译： 本发明涉及由一组数据元素形成的符号的时间序列组成的多载波信号，每个所述数据元素调制所述信号的载波频率，所述符号被组织在连续的帧中，每个帧包括多个符号，一个 所述载波频率在给定时间点被所述数据元素之一调制为载波。 根据本发明，所述帧中的至少一些每个包括由至少一个接收器已知的参考数据元素整体组成的至少一个参考符号，并且符合至少一个所述参考数据元素的值的至少一个约束， 以便在接收时获得影响至少另一个所述参考数据元素的至少一个干扰项。