公开(公告)号：US20210280977A1

公开(公告)日：2021-09-09

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 ,  H01Q1/38 ,  H01Q1/24 ,  H01Q21/24

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：US20140064402A1

公开(公告)日：2014-03-06

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: H04L27/38

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：US20170329743A1

公开(公告)日：2017-11-16

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

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.

公开(公告)号：US20170324436A1

公开(公告)日：2017-11-09

申请号：US15584703

申请日：2017-05-02

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kanghee KIM ,  Sang-Won KIM ,  Ki Cheol TAE ,  Yong-Seok CHOI

IPC: H04B1/18 ,  H04B1/525 ,  H04B1/08 ,  H04B17/21 ,  H04B7/02 ,  H04B1/44 ,  H04B17/14

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.

公开(公告)号：US20130288705A1

公开(公告)日：2013-10-31

申请号：US13870659

申请日：2013-04-25

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jee Hwan AHN ,  Kanghee KIM ,  Geon Min YEO

IPC: H04W64/00

CPC classification number: H04W64/00 ,  G01S5/12

Abstract: Disclosed is a wireless location determination apparatus using weighted values in a wireless communication network, including: a fixed infrastructure searching unit configured to search and accept information of nodes to be located and neighbor fixed infrastructures; an infrastructure combination generating unit configured to generate fixed infrastructure combinations to be used for location determination from the information of the fixed infrastructures; a location determination information element extracting unit configured to extract location determination information elements between the fixed infrastructures from each generated fixed infrastructure combination; a weighted value calculating unit configured to allocate the weighted values to each fixed infrastructure combination using the extracted location determination information elements; a fixed infrastructure combination selecting unit configured to select the fixed infrastructure combinations for location determination using the allocated weighted values; and a location calculating unit configured to calculate locations of the nodes to be located using the selected fixed infrastructure combinations.

Abstract translation: 公开了一种在无线通信网络中使用加权值的无线位置确定装置，包括：固定基础设施搜索单元，被配置为搜索和接受待定位的节点和相邻固定基础设施的信息; 基础设施组合生成单元，被配置为从固定基础设施的信息生成用于位置确定的固定基础设施组合; 位置确定信息元素提取单元，被配置为从每个生成的固定基础设施组合中提取固定基础设施之间的位置确定信息元素; 加权值计算单元，被配置为使用所提取的位置确定信息元素将加权值分配给每个固定基础设施组合; 固定基础设施组合选择单元，被配置为使用所分配的加权值来选择用于位置确定的固定基础设施组合; 以及位置计算单元，被配置为使用所选择的固定基础设施组合来计算要定位的节点的位置。

公开(公告)号：US20140125524A1

公开(公告)日：2014-05-08

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: 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。