公开(公告)号：US07127006B2

公开(公告)日：2006-10-24

申请号：US10157948

申请日：2002-05-31

申请人： Jacques Eudes ,  Valérie Cueff ,  Marc Isard

发明人： Jacques Eudes ,  Valérie Cueff ,  Marc Isard

IPC分类号： H04L27/36

CPC分类号： H04L27/0008 ,  H04B7/2643

摘要： The invention relates notably to a method for transmitting frames on a radio communication channel (RCC), the frames comprising a succession of bursts (B1, . . . , Bn) modulated with at least two different modulation schemes (M1, M2, M3) having different modulation efficiencies, each modulation scheme (M1, M2, M3) having a corresponding average transmitted power.The method according to the invention comprises the steps of: mapping information to be transmitted to modulation symbols using one of the modulation schemes (M1, M2, M3); filtering the modulation symbols using a digital transmission filter with a set of coefficients, the set being chosen from at least two sets of coefficients depending on the modulation scheme (M1, M2, M3) used at the mapping step, the product of the average transmitted power and the gain of the digital transmission filter being smaller than a predefined value for all modulation schemes (M1, M2, M3).

摘要翻译： 本发明特别涉及一种用于在无线电通信信道（RCC）上发送帧的方法，所述帧包括用至少两个不同调制方案（M 1，M 2）调制的一连串突发（B 1，...，B n） ，M 3）具有不同调制效率的每个调制方案（M 1，M 2，M 3）具有相应的平均发射功率。 根据本发明的方法包括以下步骤：使用调制方案（M 1，M 2，M 3）之一将要发送的信息映射到调制符号; 使用具有一组系数的数字传输滤波器对调制符号进行滤波，该组根据在映射步骤中使用的调制方案（M 1，M 2，M 3）从至少两组系数中选择，乘积 平均发射功率和数字传输滤波器的增益小于所有调制方案（M 1，M 2，M 3）的预定义值。

公开(公告)号：US5533050A

公开(公告)日：1996-07-02

申请号：US260824

申请日：1994-06-16

申请人： Marc Isard ,  Thierry Bernier

发明人： Marc Isard ,  Thierry Bernier

IPC分类号： H04B3/04 ,  H04B7/005 ,  H04L7/02 ,  H04L27/01 ,  H04L27/38 ,  H03H7/30 ,  H03H7/40 ,  H03K5/159 ,  H04L27/14

CPC分类号： H04L7/0062 ,  H04L27/38

摘要： A system for receiving a complex modulation digital signal using a temporal equaliser including an estimator supplying correction parameters. This system includes: at least one peripheral control loop, the estimator of which uses at least one of said correction parameters, the peripheral control loop having an operating range separate from that of the temporal equalizer; and a temporal discriminator detecting inactive areas of the estimator of each peripheral control loop to enable operation of the temporal equalizer in such a way as to prevent interaction between the temporal equalizer and the peripheral control loop. The peripheral control loop can be a Mueller and Muller-type pointing estimator and/or a Leclert and Vandamme-type carrier recovery device.

摘要翻译： 一种使用包括提供校正参数的估计器的时间均衡器来接收复数调制数字信号的系统。 该系统包括：至少一个外围控制回路，其估计器使用至少一个所述校正参数，外围控制回路具有与时间均衡器的操作范围分开的操作范围; 以及时间鉴别器，其检测每个外围控制环路的估计器的无效区域，以使得能够以防止时间均衡器和外围控制环路之间的相互作用的方式操作时间均衡器。 外围控制回路可以是Mueller和Müller型指向估计器和/或Leclert和Vandamme型载体恢复装置。

公开(公告)号：US5663691A

公开(公告)日：1997-09-02

申请号：US585433

申请日：1996-01-11

申请人： Francis Kowalik ,  Marc Isard

发明人： Francis Kowalik ,  Marc Isard

IPC分类号： H04L27/20

CPC分类号： H04L27/2071

摘要： An estimator for estimating an operating defect in a quadrature modulator, including two mixers to which respective carrier signals are applied, and to which respective modulating signals are also applied. The output signals from the mixers are applied to a summing circuit so as to constitute a modulated signal. The estimator includes detection circuitry for detecting the instantaneous power of said modulated signal; multiplication circuitry for multiplying the detected instantaneous power by at least one of the modulating signals; and integration circuitry for integrating the result of the multiplication and for supplying a signal indicative of the operating defect of the modulator. The modulator is particularly applicable to removing the residual amount of the carrier signals that remains in the modulated signal, and to correcting the quadrature between the signals output by the mixers.

摘要翻译： 用于估计正交调制器中的操作缺陷的估计器，包括施加相应载波信号的两个混频器，并且还施加相应的调制信号。 来自混频器的输出信号被施加到求和电路，以构成调制信号。 估计器包括用于检测所述调制信号的瞬时功率的检测电路; 乘法电路，用于将检测到的瞬时功率乘以至少一个调制信号; 以及用于积分乘法结果并用于提供指示调制器的操作缺陷的信号的积分电路。 调制器特别适用于去除保留在调制信号中的载波信号的剩余量，并且校正由混频器输出的信号之间的正交。

公开(公告)号：US5202902A

公开(公告)日：1993-04-13

申请号：US688396

申请日：1991-04-22

申请人： Marc Isard ,  Christophe Mostkowy

发明人： Marc Isard ,  Christophe Mostkowy

IPC分类号： H04L27/227 ,  H04L27/38

CPC分类号： H04L27/3818

摘要： A method of recovering the carrier for modulation having a large number of states, the method being wherein the demodulated constellation is brought to the monotonic range of a conventional estimator, with sufficient accuracy to enable autonomous operation on this new criterion. The invention also provides apparatus for implementing the method. The invention is particularly applicable to digital ratio beam transmission.

摘要翻译： 一种恢复具有大量状态的调制载波的方法，所述方法是其解调的星座被带到传统估计器的单调范围，具有足够的精度以使得能够对该新标准进行自主操作。 本发明还提供了实现该方法的装置。 本发明特别适用于数字比例波束传输。