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.