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公开(公告)号：US20140125524A1
公开(公告)日：2014-05-08
申请号：US14068727
申请日：2013-10-31
Inventor： Kanghee KIM , Ki Cheol TAE , Chung Sup KIM
IPC: 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.
Abstract translation: 一种用于无线电方向发现的装置，该装置包括：接收机，被配置为接收由天线阵列获取的信号源的方向发现的目标信号; 配置为产生通过接收器接收的目标信号的简档的信道分析器; 预分析器，其被配置为基于由信道分析器产生的简档来宽带处理窄带目标信号，以产生用于宽带目标信号的预分析信息; 以及取向器，被配置为使用所述预分析信息和所述目标信号的分析器来对所述信号源执行所述方向调查。
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公开(公告)号：US20230066195A1
公开(公告)日：2023-03-02
申请号：US17710625
申请日：2022-03-31
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.
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公开(公告)号：US20220381867A1
公开(公告)日：2022-12-01
申请号：US17691593
申请日：2022-03-10
Inventor： Kang Hee KIM , Byung Chan KIM , Haeng Sook RO , Gwang Moon PARK , Soo Ho SOHN , Ki Cheol TAE
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.
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Patent Agency Ranking
公开(公告)号：US20170329743A1
公开(公告)日：2017-11-16
申请号：US15595094
申请日：2017-05-15
Inventor： Chung Sup KIM , Kanghee KIM , Sang-Won KIM , Ki Cheol TAE , Heung Yong KANG , Yong-Seok CHOI
CPC classification number: G06F17/141 , H04L27/265
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.
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公开(公告)号：US20170324436A1
公开(公告)日：2017-11-09
申请号：US15584703
申请日：2017-05-02
Inventor： Kanghee KIM , Sang-Won KIM , Ki Cheol TAE , Yong-Seok CHOI
Abstract: Disclosed is a digital radio frequency (RF) signal receiving apparatus including an RF filter configured to convert multichannel wireless signals received through an antenna into signals available for digital sampling, an analog-to-digital converter configured to perform digital sampling on the multichannel wireless signals converted by the RF filter, a digital processor configured to perform filtering on each of the digital-sampled multichannel wireless signals into a plurality of bandwidth signals within a maximum bandwidth range simultaneously, and down-convert the filtered multichannel wireless signals to be signals in a baseband, a data formatter configured to format the down-converted signals based on an input/output data form of transmission interfaces, and a data transmitter configured to simultaneously transmit each of formatted signals to a corresponding processing platform.
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公开(公告)号：US20210280977A1
公开(公告)日：2021-09-09
申请号：US17132195
申请日：2020-12-23
Inventor： Haeng Sook RO , Kanghee KIM , Gwangmoon PARK , Soo-Ho SOHN , Ki Cheol TAE
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.
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7.发明申请METHOD AND APPARATUS FOR DESIGNING FREQUENCY-SPATIAL FILTER WITH VARIABLE BANDWIDTH 有权用于设计具有可变带宽的频率滤波器的方法和装置公开(公告)号：US20160294589A1
公开(公告)日：2016-10-06
申请号：US15007755
申请日：2016-01-27
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。
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8.发明申请公开(公告)号：US20140064402A1
公开(公告)日：2014-03-06
申请号：US13834443
申请日：2013-03-15
Inventor： Chung Sup KIM , Ki Cheol TAE , Kanghee KIM , Heung Yong KANG , Soo-Ho SOHN , Yong-Seok CHOI , Jae Ick CHOI
IPC: 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。
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