Validity check of vehicle position information
    4.
    发明公开
    Validity check of vehicle position information 有权
    Gültigkeitsprüfungvon Fahrzeugpositionsinformationen

    公开(公告)号:EP2506032A1

    公开(公告)日:2012-10-03

    申请号:EP12170024.9

    申请日:2008-06-18

    申请人: SAAB AB

    摘要: The present invention provides a method for validating received positional data in vehicle surveillance applications wherein vehicles transmit positional data indicating their own position to surrounding vehicles, such as an ADS-B-based aircraft surveillance application. The method involves the steps of:
    receiving, with a radio direction finding antenna arrangement of a receiving unit, a signal carrying positional data indicating an alleged position of a vehicle, transmitted from a radio source;
    estimating the bearing from the receiving unit to said radio source utilizing said radio direction finding antenna arrangement and the received signal;
    estimating the distance between the receiving unit and the radio source based on the time of flight for a signal travelling there between at known speed;
    calculating an estimated position of the radio source based on the estimated bearing and the estimated distance, and
    determining a deviation value indicating the deviation/coincidence between the alleged position of a vehicle according to the received positional data and the estimated position of the radio source.

    摘要翻译: 本发明提供一种用于验证车辆监视应用中接收到的位置数据的方法,其中车辆将表示其自己的位置的位置数据传送到诸如基于ADS-B的飞行器监视应用的周围车辆。 该方法包括以下步骤:利用无线电方向发现接收单元的天线装置,从无线电源发送携带指示车辆所指位置的位置数据的信号; 利用所述无线电测向天线装置和接收到的信号估计从接收单元到所述无线电源的方位; 基于以已知速度在其间行进的信号的飞行时间来估计接收单元和无线电源之间的距离; 基于估计的方位和估计的距离计算无线电源的估计位置,以及根据接收到的位置数据和无线电源的估计位置确定指示车辆的所指称的位置之间的偏差/重合的偏差值。

    PROCEDE D'AIDE A LA NAVIGATION D'UN MOBILE VERS UNE CIBLE EGALEMENT MOBILE
    7.
    发明公开
    PROCEDE D'AIDE A LA NAVIGATION D'UN MOBILE VERS UNE CIBLE EGALEMENT MOBILE 失效
    导航辅助程序的移动体一个也动OBJECT

    公开(公告)号:EP0925515A1

    公开(公告)日:1999-06-30

    申请号:EP97938969.0

    申请日:1997-09-02

    申请人: SEXTANT AVIONIQUE

    IPC分类号: G01S5 G01S19 G08G5

    摘要: The invention concerns a method of air navigation or steering assistance for guiding a moving vehicle towards a target whose exact position is not known a priori, in particular a moving target. It is suggested that the moving vehicle and the target use satellite positioning receivers, but, instead of transmitting the position computed by the target to the vehicle, only the pseudo-range and the pseudo-velocity measurements between the target and the satellites, together with the identification of the satellites used are transmitted (by radio) to the vehicle. The method consists in periodically carrying out pseudo-range and pseudo-velocity and measuring time measurements with the moving vehicle receiver, determining in the vehicle the p satellites used both by the vehicle and the target, subtracting, for each of the p satellites, the pseudo-range and the pseudo-velocity measurements determined by the vehicle and those received from the target, and computing on the basis of these subtractions position and relative speed vectors in a landmark between the vehicle and a targeted point linked with the target. The invention is useful for aeroplanes or helicopters alighting on the decks of ships, rendezvous in the air, at sea or in space, homing vehicles onto a marker, etc.

    Systems and methods for receiving aircraft position reports
    9.
    发明公开
    Systems and methods for receiving aircraft position reports 有权
    Systeme und Verfahren zum Empfangen von Flugzeugpositionsberichten

    公开(公告)号:EP2602778A1

    公开(公告)日:2013-06-12

    申请号:EP12195179.2

    申请日:2012-11-30

    IPC分类号: G08G5/00 G01S5/00 G01S13/78

    摘要: One embodiment is directed to an aircraft position report system. The system comprises a satellite, an aircraft position reporting receiver mounted on the satellite, an antenna element mounted on the satellite, and an antenna interface mounted on the satellite. The aircraft position reporting receiver receives aircraft position reports through the antenna element by associating a spot beam with a narrow coverage area. The aircraft position reports are derived from a signal produced by the antenna element. The antenna interface changes the narrow coverage area associated with the spot beam to receive aircraft position reports from a wide coverage region within a reporting period. In one exemplary embodiment, the antenna interface mechanically steers the spot beam for each receiver to one of the narrow coverage areas. In another exemplary embodiment, the antenna interface electronically steers the spot beam for each receiver to one of the narrow coverage areas.

    摘要翻译: 一个实施例涉及飞机位置报告系统。 该系统包括卫星,安装在卫星上的飞机位置报告接收器,安装在卫星上的天线元件和安装在卫星上的天线接口。 飞机位置报告接收机通过将点波束与窄覆盖区域相关联而通过天线元件接收飞机位置报告。 飞机位置报告是由天线元件产生的信号导出的。 天线接口改变与点波束相关联的窄覆盖区域,以在报告周期内从宽覆盖区域接收飞机位置报告。 在一个示例性实施例中,天线接口将每个接收机的点波束机械地引导到窄覆盖区域之一。 在另一个示例性实施例中,天线接口将每个接收机的点波束电子地引导到窄覆盖区域之一。

    Validity check of vehicle position information
    10.
    发明公开
    Validity check of vehicle position information 有权
    的本车位置信息的验证

    公开(公告)号:EP2136222A1

    公开(公告)日:2009-12-23

    申请号:EP08158503.6

    申请日:2008-06-18

    申请人: SAAB AB

    IPC分类号: G01S13/76 G08G5/04

    摘要: The present invention provides a method for validating received positional data in vehicle surveillance applications wherein vehicles transmit positional data indicating their own position to surrounding vehicles, such as an ADS-B-based aircraft surveillance application. The method involves the steps of:
    receiving, with a radio direction finding antenna arrangement of a receiving unit, a signal carrying positional data indicating an alleged position of a vehicle, transmitted from a radio source;
    estimating the bearing from the receiving unit to said radio source utilizing said radio direction finding antenna arrangement and the received signal;
    estimating the distance between the receiving unit and the radio source based on the time of flight for a signal travelling there between at known speed;
    calculating an estimated position of the radio source based on the estimated bearing and the estimated distance, and
    determining a deviation value indicating the deviation/coincidence between the alleged position of a vehicle according to the received positional data and the estimated position of the radio source.