公开(公告)号：US20230066195A1

公开(公告)日：2023-03-02

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: H04L27/00

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.

公开(公告)号：US20220381867A1

公开(公告)日：2022-12-01

申请号：US17691593

申请日：2022-03-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kang Hee KIM ,  Byung Chan KIM ,  Haeng Sook RO ,  Gwang Moon PARK ,  Soo Ho SOHN ,  Ki Cheol TAE

IPC: G01S3/42 ,  G01S3/74 ,  G01S3/04

Abstract: A directive direction finding apparatus may comprise: a directivity-enabled antenna array in which a constituent antenna or antenna subarray has directivity in the same direction; an RF/IF receiver connected to the directivity-enabled antenna array; a digital receiver connected to the RF/IF receiver; a direction finder connected to the digital receiver; a directivity control unit to control an operation of the directivity-enabled antenna array; and a transport/control interface connected to the direction finder and to manage control and operation of the directivity-enabled antenna array, the RF/IF receiver, the digital receiver, the direction finder and the directive control unit.

公开(公告)号：US20160294589A1

公开(公告)日：2016-10-06

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。