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1. 发明申请

WO2003081862A1 INTERPOLATION FOR USE IN CHANNEL ESTIMATION 审中-公开
标题翻译：用于通道估计的插值
公开(公告)号：WO2003081862A1
公开(公告)日：2003-10-02
申请号：PCT/EP2003/002773
申请日：2003-03-17
申请人： TELECOM ITALIA S.P.A. , STMICROELECTRONICS S.R.L. , ETTORRE, Donato , GRAZIANO, Maurizio , MELIS, Bruno , FINOTELLO, Andreas , RUSCITTO, Alfredo , VALLE, Stefano , SIMONI, Lorena
发明人： ETTORRE, Donato , GRAZIANO, Maurizio , MELIS, Bruno , FINOTELLO, Andreas , RUSCITTO, Alfredo , VALLE, Stefano , SIMONI, Lorena
IPC分类号： H04L25/02
CPC分类号： H04L25/0232
摘要： A method for the estimation of the transfer function of a transmission channel in a receiving system of UMTS type envisages the computation of a plurality of channel coefficients, included among known channel coefficients corresponding to pilot symbols, through the reiteration of an interpolation algorithm, capable of calculating an intermediate point (Z, f(Z)) between a first extreme and a second extreme of a determined interval, the first extreme being formed by at least two known points and the second extreme being formed by at least one known point, the intermediate point to be calculated having as abscissa (Z) the abscissa value of the mean point between the points defining the interval rounded off to the integer closest to the first extreme, and having as ordinate (F(Z)) the arithmetic average between the ordinate of the known point of the second extreme and the ordinate of a point, chosen between the two known points of the first extreme, having a distance from the intermediate point equal to the distance between the intermediate point and the known point of the second extreme.
摘要翻译：用于估计UMTS类型的接收系统中的传输信道的传递函数的方法设想通过重复插值算法来计算包括在与导频符号相对应的已知信道系数之中的多个信道系数，能够计算确定间隔的第一极限和第二极限之间的中间点（Z，f（Z）），所述第一极值由至少两个已知点形成，所述第二极值由至少一个已知点形成，要计算的中间点具有横坐标（Z），将定义间隔的间隔的平均点的横坐标值舍入到最接近第一极限的整数，并且具有纵坐标（F（Z））之间的算术平均值在第二极端的已知点的纵坐标和在第一极端的两个已知点之间选择的点的纵坐标距离中间件的距离点等于中间点与第二极限的已知点之间的距离。

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