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    • 81. 发明申请
    • 다중 기준국 환경에서 이상위성의 판단방법 및 이를 이용한 판단장치
    • 用于确定具有多个参考站的环境中的异常卫星的方法,以及使用该方法确定装置
    • WO2014027797A1
    • 2014-02-20
    • PCT/KR2013/007179
    • 2013-08-09
    • 한국해양과학기술원
    • 조득재신미영
    • G01S19/08G01S19/20
    • G01S19/13G01S19/08G01S19/20
    • 본 발명은 다중 기준국 환경에서 위성의 이상을 검출하고 이상원인을 판단하여 이상원인을 배제한 환경에서의 서비스를 지속적으로 제공함으로써 가용성(availability)과 연속성(continuity) 및 무결성 감시기능을 향상시킬 수 있는 다중 기준국 환경에서 이상위성의 판단방법 및 이를 이용한 판단장치에 관한 것이다. 본 발명에 따른 다중 기준국 환경에서 이상위성의 판단방법은, 다수의 위성과 각각 통신하는 적어도 하나 이상의 기준국으로부터 코드 측정치 및 반송파 측정치를 포함하는 위성신호를 각각 수신하는 제 1 단계와, 상기 위성신호로부터 다수의 위성과 통신하는 기준국의 수가 적어도 3이상인지 여부를 확인하는 제 2 단계와, 상기 제 2 단계에서 기준국 수가 적어도 3이상으로 확인되면, 코드 측정치와 반송파 측정치로부터 상기 위성의 이상 상태 여부를 검출하는 제 3 단계와, 상기 제 3 단계에서 검출한 위성의 이상 상태로부터 이상위성을 식별하는 제 4 단계 및 상기 제 4 단계에서 식별된 이상위성의 이상원인을 판단하는 제 5 단계를 포함하는 것을 특징으로 한다.
    • 本发明涉及一种用于确定具有多个参考站的环境中的异常卫星的方法,以及涉及使用该参考站的确定装置的方法和装置,涉及检测具有多个参考站的环境中的卫星的异常并确定和消除 造成这个问题的原因,从而在环境中不断提供服务,没有异常,从而提高了可用性,连续性和完整性监控功能。 根据本发明的用于确定具有多个参考站的环境中的异常卫星的方法包括:第一步骤,分别从与多个基站通信的一个或多个参考站接收包括码测量和载波测量的卫星信号 卫星; 从卫星信号检查与多颗卫星通信的参考站的数量是否至少为3的第二步骤; 第三步骤,如果在第二步骤中基于码测量和载波测量确定参考站的数量至少为3,则卫星是否处于异常状态; 基于在第三步骤中检测到的卫星的异常状态来识别异常卫星的第四步骤; 以及确定在第四步骤中识别的异常卫星的问题的原因的第五步骤。
    • 83. 发明申请
    • METHOD FOR SELECTING A SATELLITE
    • 一种用于选择卫星
    • WO2013037844A3
    • 2013-06-20
    • PCT/EP2012067866
    • 2012-09-12
    • CONTINENTAL TEVES AG & CO OHGDZIUBEK NICO
    • DZIUBEK NICO
    • G01S19/22G01S19/20
    • G01S19/28G01S19/20G01S19/21G01S19/215G01S19/22
    • The invention relates to a method for selecting a satellite (44) which is designed to send a global navigation satellite system-signal, also known as a GNSS-Signal (12), to a vehicle (2), consisting of: measuring measurement position data (50, 52) of the vehicle in relation to the satellite (44) based on the GNSS-Signal (12); determining redundant reference position data of the vehicle (12) in relation to the measurement position data (50, 52) determined according to the GNSS-Signal (12); and selecting the satellite (44) when a comparison of the measurement position data (50, 52) and the reference position data meets a predetermined condition.
    • 本发明涉及一种方法,用于选择一个卫星(44)形成一个全球导航卫星系统信号,在下文中GNSS信号(12)称为发送到车辆(2),包括:位置测量数据的测量(50,52) (44)基于相对于该卫星的车辆的上的GNSS信号(12),来确定某些基于所述GNSS信号(12)的位置测量数据(50,52)的冗余车辆的参考位置数据(12); 以及选择所述卫星(44)时所测量的位置数据(50,52)和所述参考位置数据的比较满足预定条件。
    • 87. 发明申请
    • SYSTEM AND METHOD FOR COMPENSATING FOR FAULTY MEASUREMENTS
    • 用于补偿故障测量的系统和方法
    • WO2011046866A1
    • 2011-04-21
    • PCT/US2010/052161
    • 2010-10-11
    • NAVCOM TECHNOLOGY, INC.HATCH, Ronald, R.DAI, Liwen, L.
    • HATCH, Ronald, R.DAI, Liwen, L.
    • G01C21/00
    • G01S19/40G01S19/20
    • Satellite navigation measurements of signals are received from global navigation satellites for a measurement epoch (402 in Figure 4). A Kalman filter is used to calculate a state of the global navigation satellites for the measurement epoch based on the satellite navigation measurements (404), wherein said state of the global navigation satellites is calculated using a first closed form update equation. A faulty measurement in the plurality of satellite navigation measurements for the measurement epoch is detected (406). A revised state, of the plurality of global navigation satellites for the measurement epoch that compensates for the faulty measurement, is calculated, (408) using said calculated state of the plurality of global navigation satellites and using a revised closed- form update equation comprising the first closed- form update equation modified with respect to the faulty measurement.
    • 信号的卫星导航测量从全球导航卫星接收用于测量纪元(图4中的402)。 卡尔曼滤波器用于基于卫星导航测量(404)来计算用于测量纪元的全球导航卫星的状态,其中使用第一封闭形式更新方程来计算全球导航卫星的所述状态。 检测用于测量纪元的多个卫星导航测量中的故障测量(406)。 (408)使用所述计算出的多个全球导航卫星的状态并使用修正后的闭包形式更新方程,该等式包括 关于故障测量修改的第一封闭形式更新方程。
    • 89. 发明申请
    • SYSTEM AND METHOD FOR GNSS IN-BAND AUTHENTICATED POSITION DETERMINATION
    • 用于GNSS带内认证位置确定的系统和方法
    • WO2011019978A1
    • 2011-02-17
    • PCT/US2010/045410
    • 2010-08-13
    • SENSIS CORPORATIONWU, Ryan, Haoyun
    • WU, Ryan, Haoyun
    • G01C21/00
    • G01S19/215G01S19/10G01S19/18G01S19/20G01S19/21
    • The present invention provides a system and method for determining the authenticity of reported positions of GNSS receivers, such as aircraft equipped with GPS positioning devices, and provides an in-band verification capability for GNSS positions by tasking one or more GNSS satellites as designated authentication support (DAS) satellites that transmit corrupted ephemeris data in a pseudo-random error corrupted C/A signal on the L1 band and GNSS receiver determine authentication ranges to the DAS satellites and transmit the DAS authentication ranges as part of their position report. The surveillance system can verify the authenticity by comparing the transmitted authentication ranges to true authentication ranges determined using actual ephemeris data and the known C/A code pseudo-random error for the DAS satellites.
    • 本发明提供了一种用于确定GNSS接收机(例如配备有GPS定位设备的飞机)的报告位置的真实性的系统和方法,并且通过将一个或多个GNSS卫星任务指定为认证支持来提供GNSS位置的带内验证能力 (DAS)卫星,在L1频带和GNSS接收机上的伪随机误差C / A信号中发送损坏的星历数据,确定DAS卫星的认证范围,并将DAS认证范围作为其位置报告的一部分进行发送。 监控系统可以通过将发送的认证范围与使用实际星历数据确定的真实认证范围和DAS卫星的已知C / A码伪随机误差进行比较来验证真实性。
    • 90. 发明申请
    • NAVIGATION SYSTEM INTEGRITY
    • 导航系统的完整性
    • WO2010086583A1
    • 2010-08-05
    • PCT/GB2010/000077
    • 2010-01-20
    • QINETIQ LIMITEDPULFORD, Graham William
    • PULFORD, Graham William
    • G01S1/00
    • G01S19/20
    • A method for modelling integrity of a filtered global navigation satellite system, by calculating component navigation system error distributions for a set of fault conditions and a fault free condition, and determining overall navigation error distribution by forming a mixture distribution from these component navigation system error distributions. The mixture distribution may be determined by weighted summation of navigation system error (NSE) distributions with weightings determined according to prior probabilities for the fault conditions. Once the overall NSE mixture distribution is determined in this way, it can be used to derive one or more statistical quantities relevant to the integrity of the navigation system such as the probability of exceeding given alert limits in a desired coordinate geometry.
    • 一种用于通过计算一组故障条件和无故障条件的组件导航系统误差分布来对过滤的全球导航卫星系统的完整性进行建模的方法,以及通过从这些部件导航系统误差分布形成混合分布来确定整体导航误差分布 。 混合物分布可以通过根据故障条件的先验概率确定的加权的导航系统误差(NSE)分布的加权求和来确定。 一旦以这种方式确定总体NSE混合分布,则可以使用它来导出与导航系统的完整性相关的一个或多个统计量,例如在期望的坐标几何中超过给定警报极限的概率。