公开(公告)号：US20230137969A1

公开(公告)日：2023-05-04

申请号：US17971839

申请日：2022-10-24

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Tae Hee KIM

IPC: G01S19/21 ,  G01S19/30 ,  G01S19/29

Abstract: A method of operating a satellite navigation receiver in a global navigation satellite system may include: receiving a satellite navigation signal; performing a first signal acquisition process with respect to at least one left-handed circular polarization (LHCP) signal included in the satellite navigation signal; and determining presence of a deception signal when at least one first satellite number, at least one first code position, and at least one pieces of first Doppler information are acquired with respect to the at least one LHCP signal through the first signal acquisition process.

公开(公告)号：US20240103178A1

公开(公告)日：2024-03-28

申请号：US18205176

申请日：2023-06-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Tae Hee KIM

IPC: G01S19/01 ,  G01S19/25

CPC classification number: G01S19/015 ,  G01S19/254

Abstract: A signal processing method to avoid deception attack and apparatus for performing the same are provided. The signal processing method includes generating a synthesized signal by receiving a signal from a satellite, detecting a deception signal from the synthesized signal based on tracking information on a signal currently being tracked, separating a normal navigation signal from the synthesized signal in response to the detecting of the deception signal, and computing a normal navigation solution based on the normal navigation signal.

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：US20160223678A1

公开(公告)日：2016-08-04

申请号：US15003127

申请日：2016-01-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Tae Hee KIM ,  Jae Hoon KIM ,  Cheon Sig SIN

IPC: G01S19/21

CPC classification number: G01S19/215 ,  G01S19/21 ,  G01S19/31 ,  G01S19/48

Abstract: Provided is a global navigation satellite system (GNSS) navigation solution generating apparatus and method, the apparatus including a determiner to determine that a spoofing signal exists in a received GNSS signal when a signal having a receiving intensity greater than a predetermined receiving intensity of a normal signal by a predetermined value range is included in the received GNSS signal, a detector to re-detect the normal signal from the GNSS signal when the spoofing signal is determined to exist, and a calculator to generate a GNSS navigation solution by tracking the re-detected normal signal, wherein the predetermined value range is 3 to 5 decibels (dB).

Abstract translation: 提供了一种全球导航卫星系统（GNSS）导航解决方案生成装置和方法，该装置包括一个确定器，用于当接收强度大于正常的预定接收强度的信号时，确定在所接收的GNSS信号中存在欺骗信号 信号被预定值范围包括在所接收的GNSS信号中;检测器，当确定存在欺骗信号时，重新检测来自GNSS信号的正常信号;以及计算器，通过跟踪重新生成GNSS导航解决方案， 检测到正常信号，其中预定值范围为3至5分贝（dB）。