Antenna design utilizing a cavity architecture for global positioning system (GPS) applications
    21.
    发明授权
    Antenna design utilizing a cavity architecture for global positioning system (GPS) applications 失效
    天线设计采用全球定位系统(GPS)应用的腔体结构

    公开(公告)号:US06720923B1

    公开(公告)日:2004-04-13

    申请号:US09953455

    申请日:2001-09-14

    IPC分类号: H01Q138

    CPC分类号: H01Q1/273 H01Q9/0485

    摘要: An antenna arrangement for a GPS signal processing device having a circuit board is disclosed. In a preferred embodiment of the invention, the arrangement comprises an antenna member mounted to the circuit board. The antenna member includes a first surface, second surface and a third surface. The third surface adjoins the first and second surfaces. The first, second and third surfaces define a cavity within which is disposed dielectric material. At least one conductive connector comprising first and second ends is in communication with the antenna member first surface. An amplifier is in communication with each conductive connector second end.

    摘要翻译: 公开了一种具有电路板的GPS信号处理装置的天线布置。 在本发明的优选实施例中,该装置包括安装到电路板的天线构件。 天线构件包括第一表面,第二表面和第三表面。 第三表面邻接第一表面和第二表面。 第一表面,第二表面和第三表面限定了一个空腔,在其中设有电介质材料。 包括第一端和第二端的至少一个导电连接器与天线构件第一表面连通。 放大器与每个导电连接器的第二端连通。

    Probing apparatus with impedance optimized interface
    22.
    发明授权
    Probing apparatus with impedance optimized interface 有权
    具有阻抗优化接口的探测装置

    公开(公告)号:US07888957B2

    公开(公告)日:2011-02-15

    申请号:US12287213

    申请日:2008-10-06

    IPC分类号: G01R31/00

    CPC分类号: G01R1/07378 G01R1/06772

    摘要: In a membrane probing apparatus, the impedance of the interface between coaxial cables connected to the test instrumentation and the membrane supported co-planar waveguide that conductively connects to the probe's contacts is optimized by eliminating a ground plane in the interface board.

    摘要翻译: 在膜探测装置中,通过消除接口板中的接地平面,优化了连接到测试仪器的同轴电缆与导电连接到探头触点的膜支撑的共面波导之间的界面阻抗。

    Technique for accurate distance and velocity calculations using the global positioning system (GPS)
    23.
    发明授权
    Technique for accurate distance and velocity calculations using the global positioning system (GPS) 有权
    使用全球定位系统(GPS)进行精确距离和速度计算的技术

    公开(公告)号:US06704650B1

    公开(公告)日:2004-03-09

    申请号:US09872767

    申请日:2001-05-31

    IPC分类号: G01C2100

    摘要: A method of determining the distance traveled during an event by a mobile GPS receiver. The event comprises epochs. The method comprises receiving pseudorange data comprised of one of pseudorange differences or range rates. Each pseudorange difference, in turn, comprises a difference between a first pseudorange and a second pseudorange. The first pseudorange comprises the pseudorange between the receiver and a GPS satellite at a first epoch. The second pseudorange comprises the pseudorange between the receiver and the GPS satellite at a second epoch. The range rates comprise a range rate measurement taken by the receiver of the GPS satellite from the first epoch to the second epoch. Line-of-sight data comprised of at least one normalized vector between the receiver and the GPS satellite is then determined. Based on the pseudorange and line-of-sight data, incremental distance data is then determined. A sum over the event of the incremental distance data is then determined.

    摘要翻译: 一种确定移动GPS接收机在事件期间旅行的距离的方法。 事件包括时代。 该方法包括接收由伪距差异或范围率之一组成的伪距数据。 每个伪距差异又包括第一伪距和第二伪距之间的差。 第一伪距包括接收机与第一时代的GPS卫星之间的伪距。 第二伪距包括第二纪元处的接收机与GPS卫星之间的伪距。 范围速率包括GPS卫星的接收机从第一时期到第二时期的距离速率测量。 然后确定由接收机和GPS卫星之间的至少一个归一化向量组成的视线数据。 基于伪距和视线数据,然后确定增量距离数据。 然后确定增量距离数据事件的总和。