Multisource target correlation
    1.
    发明申请

    公开(公告)号:US20030154018A1

    公开(公告)日:2003-08-14

    申请号:US10361305

    申请日:2003-02-10

    Inventor: Chih Lai

    Abstract: An improved method for correlating between targets in an air traffic control system. A methods or systems according to the invention compare selected components of a first target report to the components of a second target report, produce a confidence level on each component comparison, and determine whether to declare the targets similar based on the confidence level on each component compared. The first and second target reports may include ADS-B target reports and TIS target reports. The individual components of the reports may be range, bearing, track angle, and relative altitude. The methods or systems may use a fuzzy logic probability model to produce a continuous confidence level on each component comparison.

    Method for determining conflicting paths between mobile airborne vehicles and associated system and computer software program product
    2.
    发明申请
    Method for determining conflicting paths between mobile airborne vehicles and associated system and computer software program product 有权
    确定移动机载车辆和相关系统与计算机软件程序产品之间冲突路径的方法

    公开(公告)号:US20020032528A1

    公开(公告)日:2002-03-14

    申请号:US09901415

    申请日:2001-07-09

    Inventor: Chih Lai

    Abstract: A method of determining conflicting flight paths between a first and a second airborne vehicle is provided, wherein each vehicle comprises an aircraft-to-aircraft navigational communication system having a navigational device. First, a position and a velocity vector are determined for each of the airborne vehicles. A cylindrical volume is then defined about the first airborne vehicle. A separation distance is then determined between the vehicles at a selected time and using a great circle earth model. An accuracy factor is thereafter determined for the position of each vehicle. The separation distance is then modified by the accuracy factor. A determination is then made as to whether the modified separation distance is within the cylindrical volume about the first airborne vehicle during a time range to thereby determine whether conflicting flight paths exist between the vehicles. An associated system and computer software program product are also provided.

    Abstract translation: 提供了一种确定第一和第二机载车辆之间的冲突飞行路径的方法,其中每个车辆包括具有导航装置的飞机 - 航空器导航通信系统。 首先,为每个机载车辆确定位置和速度矢量。 然后,关于第一空中载体定义圆柱体积。 然后在选定的时间在车辆之间使用大圆的地球模型来确定分离距离。 此后确定每个车辆的位置的精度因子。 然后通过精度因子修改分离距离。 然后,在时间范围内确定修改的间隔距离是否在关于第一空中车辆的圆柱体积内,从而确定车辆之间是否存在冲突的飞行路径。 还提供了相关联的系统和计算机软件程序产品。

    Detection and removal of self-alerts in a tracking system
    3.
    发明申请
    Detection and removal of self-alerts in a tracking system 有权
    在跟踪系统中检测和删除自我警报

    公开(公告)号:US20020004698A1

    公开(公告)日:2002-01-10

    申请号:US09892597

    申请日:2001-06-27

    Inventor: Chih Lai

    CPC classification number: G01S13/765 G01S13/784 G01S13/91

    Abstract: Improved methods and systems for detecting self-alerts from upload messages in a TIS system to thereby eliminate the likelihood of TIS self-alerts appearing on CDTI displays. The present invention determines whether a self-alert was present in a previous traffic information uplink to determine whether a target in a current information uplink is real. Using a weighting algorithm, typically a fuzzy logic algorithm, a system in accordance with the present invention can distinguish between targets in consecutive radar sweeps to identify self-alerts. If the self-alert was not present in previous uplinks, then the system removes the self-alert from subsequent views on the CDTI. Thus, the present invention provides an improved visual display system for pilots and air traffic controllers.

    Abstract translation: 改进的方法和系统,用于从TIS系统中的上传消息中检测自我警报,从而消除TIS自我警报出现在CDTI显示器上的可能性。 本发明确定先前的业务信息上行链路中是否存在自警,以确定当前信息上行链路中的目标是否是真实的。 使用加权算法,通常是模糊逻辑算法,根据本发明的系统可以区分连续雷达扫描中的目标以识别自我警报。 如果以前的上行链路不存在自警,则系统会从CDTI的后续视图中删除自警。 因此,本发明提供了一种用于飞行员和空中交通管制员的改进的视觉显示系统。

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