公开(公告)号：US20140111378A1

公开(公告)日：2014-04-24

申请号：US14049697

申请日：2013-10-09

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Tae Hee KIM ,  Sang Uk LEE

IPC: G01S19/21

CPC classification number: G01S19/215 ,  G01S19/35

Abstract: Provided is a method and apparatus for removing a spoofing signal. The apparatus may convert a global positioning system (GPS) signal from an RF signal to an IF signal, and remove a spoofing signal based on whether the spoofing signal is present in the RF signal. The apparatus may obtain and track the spoofing signal using the IF signal, and generate a characteristic of the spoofing signal. The apparatus may generate an anti-spoofing signal by shifting a phase of the spoofing signal 180 degrees based on the characteristic of the spoofing signal.

Abstract translation: 提供了一种去除欺骗信号的方法和装置。 该装置可以将全球定位系统（GPS）信号从RF信号转换为IF信号，并且基于欺骗信号是否存在于RF信号中去除欺骗信号。 该装置可以使用IF信号获取和跟踪欺骗信号，并产生欺骗信号的特征。 该装置可以基于欺骗信号的特性将欺骗信号的相位180度移位180度来产生防欺骗信号。

公开(公告)号：US20130271323A1

公开(公告)日：2013-10-17

申请号：US13863932

申请日：2013-04-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： In One JOO ,  Jeom Hun LEE ,  Sang Uk LEE

IPC: G01S3/48

CPC classification number: G01S3/48

Abstract: The direction finding apparatus includes: a first and second antennas configured to receive radio signals respectively; a travel guide unit mechanically coupled with the first and second antennas and configured to provide a travel path along which the first and second antennas are linearly movable; a driver configured to provide a driving force for linearly moving at least one antenna of the first and second antennas in response to a driving control signal; a driving controller configured to provide the driving control signal, wherein the driving control signal is used to separate the first and second antennas from each other by a predetermined distance; and a direction finding unit configured to calculate an angle of arrival (AOA) of radio signals respectively received through the first and second antennas, based on the phase difference between the radio signals, and the predetermined distance.

Abstract translation: 所述方向查找装置包括：分别接收无线电信号的第一和第二天线; 行进导向单元，其与所述第一和第二天线机械耦合并且被配置为提供所述第一和第二天线沿着所述行进路径线性移动; 驱动器，被配置为响应于驱动控制信号提供用于线性移动第一和第二天线的至少一个天线的驱动力; 驱动控制器，被配置为提供所述驱动控制信号，其中所述驱动控制信号用于将所述第一和第二天线彼此分离预定距离; 以及方向查找单元，被配置为基于无线电信号之间的相位差和预定距离来计算分别通过第一和第二天线接收的无线电信号的到达角（AOA）。

公开(公告)号：US20130093619A1

公开(公告)日：2013-04-18

申请号：US13646186

申请日：2012-10-05

Applicant: Electronics and Telecommunications Research Institute

Inventor： In One JOO ,  Sang Uk LEE

IPC: G01S19/11

CPC classification number: G01S19/11 ,  G01S5/0226 ,  G01S5/08 ,  G01S19/48

Abstract: Provided is a technique for estimating an indoor position, by which a terminal may receive a positioning signal from a pseudo satellite, using a plurality of receiving antennas, determine a position of the pseudo satellite based on positional information included in the received positioning signal, estimate a direction of the pseudo satellite based on a phase difference of the positioning signal at each of the plurality of receiving antennas, and estimate a location of the terminal based on the positional information of the pseudo satellite and the estimated direction of the pseudo satellite.

Abstract translation: 提供一种用于估计室内位置的技术，终端可以使用多个接收天线从伪卫星接收定位信号，基于接收到的定位信号中包括的位置信息来确定伪卫星的位置，估计 基于所述多个接收天线中的每一个的所述定位信号的相位差，所述伪卫星的方向，并且基于所述伪卫星的位置信息和所述伪卫星的估计方向来估计所述终端的位置。