Computing of robust and improved signal-in-space accuracy parameters in a regional or global navigation satellite system
    1.
    发明授权
    Computing of robust and improved signal-in-space accuracy parameters in a regional or global navigation satellite system 有权
    在区域或全球导航卫星系统中计算鲁棒和改进的空间间信号精度参数

    公开(公告)号:US09121933B2

    公开(公告)日:2015-09-01

    申请号:US13206031

    申请日:2011-08-09

    IPC分类号: G01S19/08

    CPC分类号: G01S19/08

    摘要: Method, computer program to implement method, storage medium to store the program and apparatus for computing Signal-in-Space Accuracy (SISA) parameters in a regional or Global Navigation Satellite System (GNSS). The method includes at least of: determining individual Signal-in-Space Error (SISE) vectors; mapping individual SISE vectors to a service area; accumulating empirical sample sets; processing density functions of estimations of accumulated sample sets; individually overbounding density functions in one of an overbounding sense related to the regional or GNSS or in a paired overbounding with excess mass sense; and selecting a worst case according to predefined requirements.

    摘要翻译: 方法,实现方法的计算机程序,用于存储用于在区域或全球导航卫星系统(GNSS)中计算空间信号准确度(SISA)参数的程序和装置的存储介质。 该方法至少包括:确定单个空间信号误差(SISE)矢量; 将各个SISE向量映射到服务区; 积累经验样本集; 累积样本集的估计处理密度函数; 单独的超载密度函数以与区域或GNSS相关的超载意义之一或具有超量质感的配对过载; 并根据预定义的要求选择最坏的情况。

    Method and apparatus for operating a navigation satellite system
    2.
    发明授权
    Method and apparatus for operating a navigation satellite system 有权
    用于操作导航卫星系统的方法和装置

    公开(公告)号:US07994972B2

    公开(公告)日:2011-08-09

    申请号:US12393759

    申请日:2009-02-26

    IPC分类号: G01S19/02 G01S19/41 G01S19/42

    摘要: A satellite navigation system generates a smooth and flexible parameterization of satellite orbits and/or clock corrections. The satellite orbit(s) and/or the satellite clock corrections, are described by a first function system of advancing differentiable functions having a high approximation quality and long range of influence. Satellite orbits and/or clock corrections parameterized from the first function system are transmitted from a central ground processing unit to satellite(s) and then to a user device. (Alternatively, transmission may be effected via only a ground infrastructure.) In addition, a second advancing function system of at least continuous functions of moderate approximation quality and a very short range of influence may be provided, which permits a conversion to the first function system, particularly via the user terminal. Thus, the time required to determine the first navigation information (the time to the first fix) can be significantly shortened.

    摘要翻译: 卫星导航系统产生平滑灵活的卫星轨道和/或时钟校正参数化。 卫星轨道和/或卫星时钟校正由具有高近似质量和长距离影响的可微调功能的第一功能系统描述。 从第一功能系统参数化的卫星轨道和/或时钟校正从中央地面处理单元发送到卫星,然后发送到用户设备。 (或者,可以仅通过地面基础设施进行传输。)此外,可以提供具有中等近似质量和非常短的影响范围的至少连续功能的第二前进功能系统,其允许转换到第一功能 系统,特别是通过用户终端。 因此,可以显着缩短确定第一导航信息所需的时间(到第一定位的时间)。

    Method and apparatus for transforming overbounds
    3.
    发明授权
    Method and apparatus for transforming overbounds 有权
    用于转换过境的方法和装置

    公开(公告)号:US08849569B2

    公开(公告)日:2014-09-30

    申请号:US11683195

    申请日:2007-03-07

    IPC分类号: G06F19/00 G01S13/08

    CPC分类号: G01S19/20 G01S19/08

    摘要: A method for determining overbounds comprises the steps of determining conservative overbounds (qi) of at least one error (εi) in a first phase space, multiplying the conservative overbounds (qi) of errors (εi) in the first phase space by a first parameter (θ(−x)·2) and a second parameter (θ(x)·2), and determining an upper bound for the integrity risk at the alert limit (pw,int(AL)) in a second phase space using overbounds (qi) of errors (εi) in the first phase space by the first parameter (θ(−x)·2) and the second parameter (θ(x)·2).

    摘要翻译: 一种用于确定交叉的方法包括以下步骤:确定第一相位空间中至少一个误差(&egr i)的保守过载(q i),将第一相位空间中的保守的错误(q i)乘以(q i) 通过第一个参数(&Thetas;( - x)·2)和第二个参数(&Thetas;(x)·2),并确定警报极限(pw,int(AL))的完整性风险的上限 第二相位空间,通过第一参数(&( - x)·2)和第二参数(&Thetas;(x)·2)在第一相位空间中使用错误(& i)的跨越(q i)

    Method and Apparatus for Operating a Navigation Satellite System
    4.
    发明申请
    Method and Apparatus for Operating a Navigation Satellite System 有权
    操作导航卫星系统的方法和装置

    公开(公告)号:US20100019961A1

    公开(公告)日:2010-01-28

    申请号:US12393759

    申请日:2009-02-26

    IPC分类号: G01S5/14

    摘要: Operation of a satellite navigation system utilizes a method of generating a sufficiently smooth and very flexible parameterization of satellite orbits and/or satellite clock corrections of a satellite. For description of the satellite orbit(s) and/or of the satellite clock corrections, a first system of advancing differentiable functions (first function system) is provided which has a high approximation quality and a long range of influence. The satellite orbits and/or satellite clock corrections parameterized from the first function system are transmitted from a central ground processing unit to one or more satellites and then to a user device. (Alternatively, the transmission may take place without utilizing the space segment, via only a ground infrastructure.) In addition, a second advancing system (second function system) of at least continuous functions of a moderate approximation quality and a very short range of influence may be provided, which, particularly by means of the user terminal, permits a conversion to the first function system. As a result, the time required to determine the first navigation information (the time to the first fix) can be significantly shortened.

    摘要翻译: 卫星导航系统的操作利用一种产生卫星的卫星轨道和/或卫星时钟校正的足够平滑和非常灵活的参数化的方法。 为了描述卫星轨道和/或卫星时钟校正,提供了具有高近似质量和长距离影响的推进可微分功能(第一功能系统)的第一系统。 从第一功能系统参数化的卫星轨道和/或卫星时钟校正从中央地面处理单元传输到一个或多个卫星,然后传送到用户设备。 (或者,传输可以在不利用空间段的情况下通过地面基础设施进行。)此外,具有中等近似质量和非常短的影响范围的至少连续功能的第二前进系统(第二功能系统) 可以提供,特别是通过用户终端,允许转换到第一功能系统。 结果,可以显着缩短确定第一导航信息所需的时间(到第一定位的时间)。

    METHOD AND APPARATUS FOR TRANSFORMING OVERBOUNDS
    5.
    发明申请
    METHOD AND APPARATUS FOR TRANSFORMING OVERBOUNDS 有权
    用于改变重叠的方法和装置

    公开(公告)号:US20070222669A1

    公开(公告)日:2007-09-27

    申请号:US11683195

    申请日:2007-03-07

    IPC分类号: G01S13/08

    CPC分类号: G01S19/20 G01S19/08

    摘要: A method for determining overbounds comprises the steps of determining conservative overbounds (qi) of at least one error (εi) in a first phase space, multiplying the conservative overbounds (qi) of errors (εi) in the first phase space by a first parameter (θ(−x)·2) and a second parameter (θ(x)·2), and determining an upper bound for the integrity risk at the alert limit (pw,int(AL)) in a second phase space using overbounds (qi) of errors (εi) in the first phase space by the first parameter (θ(−x)·2) and the second parameter (θ(x)·2).

    摘要翻译: 一种用于确定交叉的方法包括以下步骤:确定第一相位空间中的至少一个误差(ε-i i />)的保守过载(ε∩),将保守的越界( 第一个参数(θ(-x).2)和第二个参数(theta(x))在第一相位空间中的错误(ε= i) 在第二相位空间中,使用附加的(q),(i),(ii)和(ii)确定在警报极限(p < )第一相位空间中的第一个参数(theta(-x).2)和第二个参数(theta(x).2)的错误(ε= i)。