公开(公告)号：US11509054B2

公开(公告)日：2022-11-22

申请号：US17132195

申请日：2020-12-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Haeng Sook Ro ,  Kanghee Kim ,  Gwangmoon Park ,  Soo-Ho Sohn ,  Ki Cheol Tae

IPC: H01Q9/06 ,  H01Q1/26 ,  H01Q21/24 ,  H01Q1/24 ,  H01Q1/38

Abstract: A dipole antenna fed by a planar balun includes a first radiation element and a second radiation element respectively corresponding to poles of the dipole antenna, at least one dipole support column configured to connect the first radiation element and the second radiation element and to fix a gap between the first radiation element and the second radiation element, a planar balun connected to the first radiation element and the second radiation element and configured to feed the first radiation element and the second radiation element, and a balun housing coupled to the dipole support column and enclosing the planar balun.

公开(公告)号：US09739866B2

公开(公告)日：2017-08-22

申请号：US14068727

申请日：2013-10-31

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kanghee Kim ,  Ki Cheol Tae ,  Chung Sup Kim

IPC: G01S5/02 ,  G01S3/14

CPC classification number: G01S3/14

Abstract: An apparatus for radio direction finding, the apparatus comprising: a receiver configured to receive target signals to be subjected to the direction finding of signal sources, which are acquired by an antenna array; a channel profiler configured to produce profiles of the target signals received through the receiver; a pre-analyzer configured to preemptively process in a narrowband the wideband target signals based on the profiles that are produced by the channel profiler to produce pre-analyzed information for the wideband target signals; and a direction finder configured to perform the direction finding on the signal sources using the pre-analyzed information and the profilers of the target signals.

公开(公告)号：US09071497B2

公开(公告)日：2015-06-30

申请号：US13834443

申请日：2013-03-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Chung Sup Kim ,  Ki Cheol Tae ,  Kanghee Kim ,  Heung Yong Kang ,  Soo-Ho Sohn ,  Yong-Seok Choi ,  Jae Ick Choi

IPC: H04L27/32 ,  H04L27/38

CPC classification number: H04L27/38 ,  H04L27/0012 ,  H04L27/10 ,  H04L27/18

Abstract: An apparatus is used for modulation classification of unknown input signal in a wireless communication system. The apparatus includes a signal classification unit configured to classify the input signal into a PSK signal and an FSK signal and a modulation index decision unit configured to decide a modulation index for the PSK signal and the FSK signal classified by the signal classification unit.

Abstract translation: 一种装置用于无线通信系统中未知输入信号的调制分类。 该装置包括：信号分类单元，被配置为将输入信号分类为PSK信号;以及调制指数决定单元，被配置为决定由信号分类单元分类的PSK信号和FSK信号的调制指数。

公开(公告)号：US11509050B2

公开(公告)日：2022-11-22

申请号：US16837728

申请日：2020-04-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ki Cheol Tae ,  Kanghee Kim ,  Haeng Sook Ro ,  Gwangmoon Park ,  Soo-Ho Sohn ,  Ho Jin Lee

IPC: H01Q3/12 ,  H01Q1/10 ,  H01Q1/24

Abstract: There are provided a multi-bay antenna apparatus and an operation method thereof. A multi-bay antenna apparatus may include a first section, a first array antenna mounted in the first section to receive a signal in a predetermined frequency band, a second section movably coupled with the first section, and a second array antenna mounted in the second section to receive a signal in a predetermined frequency band.

公开(公告)号：US10067908B2

公开(公告)日：2018-09-04

申请号：US15595094

申请日：2017-05-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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

IPC: G06F17/14 ,  H04L27/26

Abstract: An apparatus for calculating a reception time of a wireless communication signal is disclosed. The apparatus includes a downconverted signal generator configured to generate a downconverted signal, a baseband signal, by downconverting a frequency of a signal received from a transmission source, a modulated signal generator configured to generate a modulated signal by multiplying the downconverted signal by a randomly generated reference signal, a time difference calculator configured to calculate a time difference between the modulated signal and the reference signal by cross-correlating the modulated signal and the reference signal, and a reception time calculator configured to calculate a reception time of the signal received from the transmission source using a point in time at which the reference signal is generated and the time difference between the modulated signal and the reference signal.