公开(公告)号：US09571316B2

公开(公告)日：2017-02-14

申请号：US15007755

申请日：2016-01-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Chung Sup Kim ,  Kang Hee Kim ,  Ki Cheol Tae ,  Sang Won Kim ,  Heung Yong Kang ,  Yong Seok Choi

IPC: H04L27/148

CPC classification number: H04L27/148 ,  H04L27/265

Abstract: Provided herein is a method and apparatus for realizing a frequency-spatial filter with variable bandwidth, the method including generating M number of FFT channel blocks having N number of channels by performing an N point FFT (Fast Fourier Transform) processing using M number of array antenna inputs; combining some of the N number of channels of each FFT channel block according to a frequency bandwidth variable parameter value; combining some of spatial response vector channels in a combined channel of each FFT channel block according to a spatial bandwidth variable parameter value; and combining all the channels and outputting the same.

Abstract translation: 本文提供了一种用于实现具有可变带宽的频率 - 空间滤波器的方法和装置，该方法包括通过使用M个数组阵列执行N点FFT（快速傅里叶变换）处理来产生具有N个信道数的M个FFT信道块 天线输入; 根据频率带宽可变参数值组合每个FFT通道块的N个通道中的一些; 根据空间带宽可变参数值，在每个FFT通道块的组合通道中组合一些空间响应矢量通道; 并组合所有通道并输出相同的通道。

公开(公告)号：US11817977B2

公开(公告)日：2023-11-14

申请号：US17710625

申请日：2022-03-31

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Byung Chan Kim ,  Kang Hee Kim ,  Haeng Sook Ro ,  Gwang Moon Park ,  Soo Ho Sohn ,  Ki Cheol Tae

IPC: H04B3/46 ,  H04L27/00

CPC classification number: H04L27/0012 ,  H04L27/0006

Abstract: In the present invention, in classifying modulation types of a plurality of modulation signals by using a classifier (an artificial neural network model based on machine learning), the classifier may classify the modulation types of the modulation signals by using pieces of I/Q data, sampled with one sampling frequency, as input data, and thus, may quickly classify the modulation signals.