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1.发明授权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 - 空间滤波器的方法和装置公开(公告)号：US09571316B2
公开(公告)日：2017-02-14
申请号：US15007755
申请日：2016-01-27
发明人： Chung Sup Kim , Kang Hee Kim , Ki Cheol Tae , Sang Won Kim , Heung Yong Kang , Yong Seok Choi
IPC分类号： H04L27/148
CPC分类号： H04L27/148 , H04L27/265
摘要： 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.
摘要翻译： 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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公开(公告)号：US11509054B2
公开(公告)日：2022-11-22
申请号：US17132195
申请日：2020-12-23
发明人： Haeng Sook Ro , Kanghee Kim , Gwangmoon Park , Soo-Ho Sohn , Ki Cheol Tae
摘要： 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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公开(公告)号：US09739866B2
公开(公告)日：2017-08-22
申请号：US14068727
申请日：2013-10-31
发明人： Kanghee Kim , Ki Cheol Tae , Chung Sup Kim
CPC分类号： G01S3/14
摘要： 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.
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4.发明授权公开(公告)号：US09071497B2
公开(公告)日：2015-06-30
申请号：US13834443
申请日：2013-03-15
发明人： Chung Sup Kim , Ki Cheol Tae , Kanghee Kim , Heung Yong Kang , Soo-Ho Sohn , Yong-Seok Choi , Jae Ick Choi
CPC分类号： H04L27/38 , H04L27/0012 , H04L27/10 , H04L27/18
摘要： 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.
摘要翻译： 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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公开(公告)号：US11817977B2
公开(公告)日：2023-11-14
申请号：US17710625
申请日：2022-03-31
发明人： Byung Chan Kim , Kang Hee Kim , Haeng Sook Ro , Gwang Moon Park , Soo Ho Sohn , Ki Cheol Tae
CPC分类号： H04L27/0012 , H04L27/0006
摘要： 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：US11509050B2
公开(公告)日：2022-11-22
申请号：US16837728
申请日：2020-04-01
发明人： Ki Cheol Tae , Kanghee Kim , Haeng Sook Ro , Gwangmoon Park , Soo-Ho Sohn , Ho Jin Lee
摘要： 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.
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公开(公告)号：US10067908B2
公开(公告)日：2018-09-04
申请号：US15595094
申请日：2017-05-15
发明人： Chung Sup Kim , Kanghee Kim , Sang-Won Kim , Ki Cheol Tae , Heung Yong Kang , Yong-Seok Choi
摘要： 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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