公开(公告)号：US20140247185A1

公开(公告)日：2014-09-04

申请号：US14053347

申请日：2013-10-14

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Shankar V. Achanta ,  David E. Whitehead ,  Francis J. Cooper

IPC: G01S19/20

CPC classification number: G01S19/20 ,  G01S19/21

Abstract: Disclosed herein is a system for detecting manipulation of a GNSS signal and mitigating against such manipulation. A GNSS receiver receives GNSS signals from a plurality of GNSS satellites, and calculates event times for each GNSS satellite. The GNSS receiver then compares a next event time for a particular GNSS satellite with an expected next event time for the particular GNSS satellite. If the difference between the expected next event time and the next event times exceeds a predetermined threshold, then the GNSS receiver indicates that signal integrity may be compromised.

Abstract translation: 本文公开了一种用于检测GNSS信号的操纵并减轻这种操纵的系统。 GNSS接收器从多个GNSS卫星接收GNSS信号，并且计算每个GNSS卫星的事件时间。 然后，GNSS接收机将特定GNSS卫星的下一个事件时间与特定GNSS卫星的预期下一个事件时间进行比较。 如果预期下一个事件时间和下一个事件时间之间的差异超过预定阈值，则GNSS接收器指示信号完整性可能受到损害。

公开(公告)号：US09599719B2

公开(公告)日：2017-03-21

申请号：US14053347

申请日：2013-10-14

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Shankar V. Achanta ,  David E. Whitehead ,  Francis J. Cooper

IPC: G01S19/20 ,  G01S19/21

CPC classification number: G01S19/20 ,  G01S19/21

Abstract: Disclosed herein is a system for detecting manipulation of a GNSS signal and mitigating against such manipulation. A GNSS receiver receives GNSS signals from a plurality of GNSS satellites, and calculates event times for each GNSS satellite. The GNSS receiver then compares a next event time for a particular GNSS satellite with an expected next event time for the particular GNSS satellite. If the difference between the expected next event time and the next event times exceeds a predetermined threshold, then the GNSS receiver indicates that signal integrity may be compromised.