公开(公告)号：US20040220986A1

公开(公告)日：2004-11-04

申请号：US10746851

申请日：2003-12-24

Applicant: STMicroelectronics Belgium NV

Inventor： Fabio Pisoni

IPC: G06F015/00

CPC classification number: H04L27/2662 ,  G06F17/141 ,  G06F17/142 ,  H04L27/2628

Abstract: An M-point Fractional Fourier is described using several 2M-points traditional Fourier transforms. The signal path is fed through a series of blocks including a first multiplier, a zero pad, an FFT, a second multiplier, an IFFT, a first half element, and a third multiplier. The first and third multipliers have as their other inputs a value exp(nulljnn2null) for nnull0:Mnull1, derived from the clock offset signal represented by null.

Abstract translation: 使用几个2M点传统傅立叶变换来描述M点分数傅里叶。 信号路径通过包括第一乘法器，零焊盘，FFT，第二乘法器，IFFT，第一半元件和第三乘法器的一系列块馈送。 第一和第三乘法器具有作为其他输入的值，对于由α表示的时钟偏移信号导出的n = 0：M-1的值exp（-jnn <2>α）。