公开(公告)号：US20130230128A1

公开(公告)日：2013-09-05

申请号：US13602799

申请日：2012-09-04

Applicant: Yuh-Ren Tsai ,  Chia-Hung Tsai ,  Kai-Jie Yang ,  Chin-Liang Wang

Inventor： Yuh-Ren Tsai ,  Chia-Hung Tsai ,  Kai-Jie Yang ,  Chin-Liang Wang

IPC: H04L27/06

CPC classification number: H04L27/2657 ,  H04L27/2671 ,  H04L27/2675 ,  H04L27/2684 ,  H04L27/2692

Abstract: A communication method for estimating Doppler spread includes the following steps: transmitting a preamble signal to a receiver from a transmitter of a transmission terminal. The preamble signal is received by the receiver; followed by dividing the received samples in the preamble signal into a plurality of sets of samples. The plurality of sets of samples are introduced into a Doppler spread estimation algorithm to estimate Doppler spread.

Abstract translation: 用于估计多普勒扩展的通信方法包括以下步骤：从发送终端的发射机向接收机发送前导码信号。 前导信号由接收机接收; 然后将前同步信号中的接收样本划分成多组采样。 将多组样本​​引入多普勒扩展估计算法以估计多普勒扩展。

公开(公告)号：US08588346B2

公开(公告)日：2013-11-19

申请号：US12801165

申请日：2010-05-26

Applicant: Kai-Jie Yang ,  Shin-Yuan Wang ,  Weily Kuo

Inventor： Kai-Jie Yang ,  Shin-Yuan Wang ,  Weily Kuo

IPC: H04L27/06

CPC classification number: H04L25/0202 ,  H04L25/0222

Abstract: A Doppler frequency estimation system includes a basis projector, a polynomial generator and an extreme value determinator. The basis projector receives and projects multiple channel sampling signals to a set of orthogonal bases to thereby generate multiple channel correlation vectors. The polynomial generator is connected to the basis projector in order to produce a target polynomial based on the channel correlation vectors, an estimated channel-envelope-to-noise-plus-interference power-ratio and a channel-envelope power. The extreme value determinator is connected to the polynomial generator in order to determine an extreme value of the polynomial and output a frequency corresponding to the extreme value as an estimated Doppler frequency.

Abstract translation: 多普勒频率估计系统包括基本投影仪，多项式发生器和极值确定器。 基准投影仪将多个通道采样信号接收并投影到一组正交基底，从而生成多个信道相关向量。 多项式发生器连接到基本投影仪，以便基于信道相关向量，估计的信道包络到噪声加干扰功率比和信道包络功率产生目标多项式。 极值确定器连接到多项式发生器，以便确定多项式的极值，并输出与极值对应的频率作为估计的多普勒频率。

公开(公告)号：US20100303177A1

公开(公告)日：2010-12-02

申请号：US12801165

申请日：2010-05-26

Applicant: Kai-Jie Yang ,  Shin-Yuan Wang ,  Weily Kuo

Inventor： Kai-Jie Yang ,  Shin-Yuan Wang ,  Weily Kuo

IPC: H04L27/00

CPC classification number: H04L25/0202 ,  H04L25/0222

Abstract: A Doppler frequency estimation system includes a basis projector, a polynomial generator and an extreme value determinator. The basis projector receives and projects multiple channel sampling signals to a set of orthogonal bases to thereby generate multiple channel correlation vectors. The polynomial generator is connected to the basis projector in order to produce a target polynomial based on the channel correlation vectors, an estimated channel-envelope-to-noise-plus-interference power-ratio and a channel-envelope power. The extreme value determinator is connected to the polynomial generator in order to determine an extreme value of the polynomial and output a frequency corresponding to the extreme value as an estimated Doppler frequency.

Abstract translation: 多普勒频率估计系统包括基本投影仪，多项式发生器和极值确定器。 基准投影仪将多个通道采样信号接收并投影到一组正交基底，从而生成多个信道相关向量。 多项式发生器连接到基本投影仪，以便基于信道相关向量，估计的信道包络到噪声加干扰功率比和信道包络功率产生目标多项式。 极值确定器连接到多项式发生器，以便确定多项式的极值，并输出与极值对应的频率作为估计的多普勒频率。