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    • 10. 发明授权
    • Process for the transmission of information by pulse response and the
corresponding receiver
    • 通过脉冲响应传输信息的过程和相应的接收器
    • US06115413A
    • 2000-09-05
    • US975459
    • 1997-11-21
    • Didier LattardJean-Rene LequepeysNorbert DanieleBernard Piaget
    • Didier LattardJean-Rene LequepeysNorbert DanieleBernard Piaget
    • H04B7/005H04B15/00H04K1/00H04L27/30
    • H04B7/005
    • A differential receiver which receives a signal corresponding to transmission of a carrier modulated by symbols S.sub.k, where k is an integer designating an order of the symbol, each symbol S.sub.k has a duration Ts and carries information, and the symbols S.sub.k have been multiplied by a psuedorandom sequence. The differential receiver includes a first processing channel configured to receive a first part of the transmitted signal in phase with the carrier to generate samples I.sub.k and delayed samples I.sub.k-1. The receiver further includes a second processing channel configured to receive a second part of the transmitted signal in phase quadrature with the carrier to generate samples Q.sub.k and delayed samples Q.sub.k-1. In addition, the receiver includes a multiplication circuit configured to generate a signal Dot(k) equal to I.sub.k I.sub.k-1 +Q.sub.k Q.sub.k-1 and a signal Cross(k) equal to Q.sub.k I.sub.k-1 -I.sub.k Q.sub.k-1, a calculating mechanism configured to calculate, for each order k of a symbol, the following equation: E=[Dot(k).sup.2 +Cross(k).sup.2 ].sup.1/2, and configured to calculate a mean E.sup.moy, a weighting circuit having two multipliers configured to respectively multiply the signal E.sup.moy and the signals Dot(k) and Cross(k) to obtain a mean signal Dot(k).sup.moy and a mean signal Cross(k).sup.moy, and a circuit configured to receive the mean signal Dot(k).sup.moy and the mean signal Cross(k).sup.moy supplied by the calculating mechanism to integrate the mean signals on the time of a symbol and restore the corresponding information.
    • 接收对应于由符号Sk调制的载波的传输的信号的差分接收机,其中k是指定符号顺序的整数,每个符号Sk具有持续时间Ts并携带信息,并且符号Sk已经被乘以 伪装序列。 差分接收机包括第一处理通道,其被配置为接收与载波同相的发射信号的第一部分以产生采样Ik和延迟采样Ik-1。 接收机还包括第二处理通道,其被配置为接收与载波相位正交的发射信号的第二部分以产生采样Q k和延迟采样Q k-1。 此外,接收机包括:乘法电路,被配置为生成等于IkIk-1 + QkQk-1的信号Dot(k)和等于QkIk-1-IkQk-1的信号Cross(k),被配置为计算 对于符号的每个阶数k,下列等式:E = [Dot(k)2 + Cross(k)2] + E,fra 1/2 + EE,并且被配置为计算平均值Emoy,加权电路具有 两个乘法器,被配置为分别乘以信号Emoy和信号Dot(k)和Cross(k)以获得平均信号Dot(k)moy和平均信号Cross(k)moy,以及被配置为接收平均信号 Dot(k)moy和由计算机构提供的平均信号Cross(k)moy,以在符号时间上整合平均信号并恢复相应的信息。