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    METHOD AND APPARATUS FOR RADIO DIRECTION FINDING
    3.
    发明申请
    METHOD AND APPARATUS FOR RADIO DIRECTION FINDING 有权
    用于无线电方向寻找的方法和装置

    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。

    APPARATUS AND METHOD FOR CALCULATING RECEPTION TIME OF WIRELESS COMMUNICATION SIGNAL
    5.
    发明申请
    APPARATUS AND METHOD FOR CALCULATING RECEPTION TIME OF WIRELESS COMMUNICATION SIGNAL 审中-公开

    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.

    METHOD AND APPARATUS FOR SIGNAL RECEPTION IN COMMUNICATION SYSTEM
    6.
    发明公开
    METHOD AND APPARATUS FOR SIGNAL RECEPTION IN COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：US20240214053A1

    公开(公告)日：2024-06-27

    申请号：US18369973

    申请日：2023-09-19

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Chung Sup KIM ,  Hyuk Je KIM ,  Kwan Woong RYU ,  Sung Woong CHOI

    IPC: H04B7/08 ,  H04B1/10

    CPC classification number: H04B7/0808 ,  H04B1/10

    Abstract: An operation method of a first communication node in a communication system may include: determining whether each of one or more interference signals satisfies an LOS condition or an NLOS condition, the one or more interference signals being received through a first antenna composed of a plurality of antenna elements; estimating incident direction(s) of the one or more interference signals; performing spatial filtering based on the incident direction(s) of the one or more interference signals, with respect to each of a plurality of array antenna combinations each of which is determined at least in part based on some of the plurality of antenna elements; and receiving wireless signals based on a result of the spatial filtering.

    METHOD AND APPARATUS FOR DESIGNING FREQUENCY-SPATIAL FILTER WITH VARIABLE BANDWIDTH
    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

    Applicant: Electronics and Telecommunications Research Institute

    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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