公开(公告)号：US06414985B1

公开(公告)日：2002-07-02

申请号：US09152022

申请日：1998-09-11

申请人： Hideto Furukawa ,  Makoto Yoshida ,  Nami Hatazoe

发明人： Hideto Furukawa ,  Makoto Yoshida ,  Nami Hatazoe

IPC分类号： H04B7216

CPC分类号： H04B1/707 ,  H04B2001/70935 ,  H04L27/20 ,  H04L27/3818 ,  H04L27/3845

摘要： Reference phase is a radio communication system using orthogonal M-ary modulation is determined, so that a coherent detection system for a CDMA radio communication system is readily achieved. The determination of reference phase is performed by the step of determining a reference phase in a radio communication system, which uses orthogonal M-ary codes comprising the steps of determining the correlation values of an in-phase component and quadrature component corresponding to respective Hadamard matrices resulting from fast Hadamard transform or inverse Hadamard transform of a signal, which possesses said in-phase component and quadrature component, and which is sent from the sending end by phase shift keying an orthogonal M-ary code computing the sum of the squares of the respective correlation values of said in-phase component and quadrature component and selecting either said fast Hadamard transform or inverse Hadamard transform output, which outputs a maximum value of said computed sum of the squares.

摘要翻译： 参考相位是确定使用正交M进制调制的无线电通信系统，从而容易地实现用于CDMA无线电通信系统的相干检测系统。 参考相位的确定通过确定无线电通信系统中的参考相位的步骤来执行，该无线电通信系统使用正交的M元码，包括以下步骤：确定与相应的哈达玛矩阵相对应的同相分量和正交分量的相关值 由具有所述同相分量和正交分量的信号的快速Hadamard变换或反Hadamard变换产生，并且通过相移键控从发送端发送正交M代码，计算正交M代码的平方和 所述同相分量和正交分量的相应相关值，并选择所述快速哈达玛变换或反哈达玛变换输出，其输出所计算的平方和的最大值。

公开(公告)号：US07310305B2

公开(公告)日：2007-12-18

申请号：US10143747

申请日：2002-05-10

申请人： Hideto Furukawa ,  Makoto Yoshida ,  Nami Hatazoe

发明人： Hideto Furukawa ,  Makoto Yoshida ,  Nami Hatazoe

IPC分类号： H04J11/00

CPC分类号： H04B1/707 ,  H04B2001/70935 ,  H04L27/20 ,  H04L27/3818 ,  H04L27/3845

摘要： Reference phase is a radio communication system using orthogonal M-ary modulation is determined, so that a coherent detection system for a CDMA radio communication system is readily achieved. The determination of reference phase is performed by the step of determining a reference phase in a radio communication system, which uses orthogonal M-ary codes comprising the steps of determining the correlation values of an in-phase component and quadrature component corresponding to respective Hadamard matrices resulting from fast Hadamard transform or inverse Hadamard transform of a signal, which possesses said in-phase component and quadrature component, and which is sent from the sending end by phase shift keying an orthogonal M-ary code computing the sum of the squares of the respective correlation values of said in-phase component and quadrature component and selecting either said fast Hadamard transform or inverse Hadamard transform output, which outputs a maximum value of said computed sum of the squares.

摘要翻译： 参考相位是确定使用正交M进制调制的无线电通信系统，从而容易地实现用于CDMA无线电通信系统的相干检测系统。 参考相位的确定通过确定无线电通信系统中的参考相位的步骤来执行，该无线电通信系统使用正交的M元码，包括以下步骤：确定与相应的哈达玛矩阵相对应的同相分量和正交分量的相关值 由具有所述同相分量和正交分量的信号的快速Hadamard变换或反Hadamard变换产生，并且通过相移键控从发送端发送正交M代码，计算正交M代码的平方和 所述同相分量和正交分量的相应相关值，并选择所述快速哈达玛变换或反哈达玛变换输出，其输出所计算的平方和的最大值。