公开(公告)号：US20150153459A1

公开(公告)日：2015-06-04

申请号：US14400083

申请日：2012-11-15

Applicant: Korea Institute of Ocean Science And Technology

Inventor： Woo-Seong Shim ,  Deuk Jae Cho

IPC: G01S19/40

CPC classification number: G01S19/40

Abstract: The present invention relates to a system for detecting ambiguities in a satellite signal for the GPS tracking of vessels, which includes: a GNSS receiving unit obtaining a vessel position using a plurality of satellites; a vessel position calculating unit calculating a second vessel position from a first vessel position after a specific amount of time elapses using dead-reckoning; a distance calculating unit calculating prediction distances between each of the satellites and the vessel and an error monitoring unit comparing the calculated prediction distances between the satellites and the vessel, and pseudoranges between the satellites and the GNSS receiving unit at the second vessel position, and monitoring for the occurrence of errors at the satellites on the basis of the existence of an increase in errors at each of the satellites.

Abstract translation: 本发明涉及一种用于检测用于船只GPS跟踪的卫星信号中的模糊度的系统，其包括：GNSS接收单元，使用多个卫星获得船舶位置; 船舶位置计算单元，在使用航位推算经过特定时间量之后，从第一船舶位置算出第二船舶位置; 距离计算单元，计算每个卫星与船只之间的预测距离;以及误差监视单元，比较计算出的卫星与船只之间的预测距离，以及卫星与GNSS接收单元之间在第二船舶位置处的伪距，以及监测 基于每个卫星上存在的误差的增加，在卫星发生错误。

公开(公告)号：US20140240171A1

公开(公告)日：2014-08-28

申请号：US14238841

申请日：2013-08-09

Applicant: KOREA INSTITUTE OF OCEAN SCIENCE AND TECHNOLOGY

Inventor： Deuk Jae Cho ,  Mi Young Shin

IPC: G01S19/13

CPC classification number: G01S19/13 ,  G01S19/08 ,  G01S19/20

Abstract: The present invention relates to a method of determining an anomalous satellite in a multi-reference station environment and a determination apparatus using the method, which detect an anomaly in a satellite and determine the cause of the anomaly in a multi-reference station environment, and continuously provide services in an environment in which the cause of the anomaly is removed, thus improving availability and continuity, and enhancing an integrity monitoring function. A method of determining an anomalous satellite in a multi-reference station environment according to the present invention includes a first step of individually receiving satellite signals including code measurements and carrier measurements from one or more reference stations respectively communicating with a plurality of satellites, a second step of checking whether the number of reference stations communicating with the plurality of satellites is at least 3, based on the satellite signals, a third step of detecting presence or non-presence of an anomaly state of the satellites, based on the code measurements and the carrier measurements of the satellite signals if it is checked at the second step that the number of reference stations is at least 3, a fourth step of identifying an anomalous satellite from the anomaly state of the satellites detected at the third step, and a fifth step of determining a cause of an anomaly in the anomalous satellite identified at the fourth step.

Abstract translation: 本发明涉及一种确定多参考站环境中的异常卫星的方法和使用该方法的确定设备，该方法检测卫星中的异常并确定多参考站环境中异常的原因，以及 在异常原因消除的环境中不断提供服务，从而提高可用性和连续性，增强完整性监控功能。 根据本发明的确定多参考站环境中的异常卫星的方法包括：第一步骤，分别从分别与多个卫星通信的一个或多个参考站单独接收包括码测量和载波测量的卫星信号，第二步骤 基于所述卫星信号，检查与所述多个卫星通信的参考站的数量是否至少为3的步骤，基于所述代码测量来检测卫星的异常状态的存在或不存在的第三步骤，以及 如果在第二步骤中检查到参考站的数量至少为3，则卫星信号的载波测量值;从第三步骤检测到的卫星的异常状态识别异常卫星的第四步骤，以及第五步骤 确定第四步确定的异常卫星异常原因的步骤。

公开(公告)号：US09651669B2

公开(公告)日：2017-05-16

申请号：US14238841

申请日：2013-08-09

Applicant: KOREA INSTITUTE OF OCEAN SCIENCE AND TECHNOLOGY

Inventor： Deuk Jae Cho ,  Mi Young Shin

IPC: G01S19/13 ,  G01S19/08 ,  G01S19/20

CPC classification number: G01S19/13 ,  G01S19/08 ,  G01S19/20

Abstract: The present invention relates to an apparatus and a method for identifying an anomalous satellite in a multi-reference station environment.

公开(公告)号：US09638806B2

公开(公告)日：2017-05-02

申请号：US14400083

申请日：2012-11-15

Applicant: Korea Institute of Ocean Science And Technology

Inventor： Woo Seong Shim ,  Deuk Jae Cho

IPC: G01S19/40

CPC classification number: G01S19/40

Abstract: The present invention relates to a system for detecting ambiguities in a satellite signal for the GPS tracking of vessels, which includes: a GNSS receiving unit obtaining a vessel position using a plurality of satellites; a vessel position calculating unit calculating a second vessel position from a first vessel position after a specific amount of time elapses using dead-reckoning; a distance calculating unit calculating prediction distances between each of the satellites and the vessel and an error monitoring unit comparing the calculated prediction distances between the satellites and the vessel, and pseudoranges between the satellites and the GNSS receiving unit at the second vessel position, and monitoring for the occurrence of errors at the satellites on the basis of the existence of an increase in errors at each of the satellites.