System and Method for Adaptive Correction to Phased Array Antenna Array Coefficients Through Dithering and Near-Field Sensing
    1.
    发明申请
    System and Method for Adaptive Correction to Phased Array Antenna Array Coefficients Through Dithering and Near-Field Sensing 有权
    通过抖动和近场感测对相控阵天线阵列系数进行自适应校正的系统和方法

    公开(公告)号:US20110205117A1

    公开(公告)日:2011-08-25

    申请号:US12708785

    申请日:2010-02-19

    IPC分类号: H01Q3/00

    CPC分类号: H01Q3/2605 H01Q3/2652

    摘要: A system and method of adaptively correcting the excitation or receive coefficients for a phased array antenna. For a transmitting antenna, a sensor located in the near field of the antenna is used to sense the antenna transmission. A reference signal that represents the sensor response to a desired antenna transmission that is accomplished with predetermined excitation coefficients is determined. The magnitudes and phases of the excitation coefficients are modified in a predetermined manner to create a modified antenna transmission. An actual signal that represents the sensor response to the modified antenna transmission is then determined. The excitation coefficients are then corrected using the differences between the reference signal and the actual signal, such that the modified antenna transmission becomes closer to the desired antenna transmission. The method and system also apply to a receiving antenna.

    摘要翻译: 一种自适应校正相控阵天线的激励或接收系数的系统和方法。 对于发射天线,位于天线近场的传感器用于感测天线传输。 确定用预定的激励系数来实现的对所希望的天线传输的传感器响应的参考信号。 以预定的方式修改激励系数的幅度和相位,以产生经修改的天线传输。 然后确定表示对修改的天线传输的传感器响应的实际信号。 然后使用参考信号和实际信号之间的差来校正激励系数,使得修改的天线传输变得更接近期望的天线传输。 该方法和系统也适用于接收天线。

    System and method for adaptive correction to phased array antenna array coefficients through dithering and near-field sensing
    2.
    发明授权
    System and method for adaptive correction to phased array antenna array coefficients through dithering and near-field sensing 有权
    通过抖动和近场感测对相控阵天线阵列系数进行自适应校正的系统和方法

    公开(公告)号:US08299964B2

    公开(公告)日:2012-10-30

    申请号:US12708785

    申请日:2010-02-19

    IPC分类号: H01Q3/00 G01S7/40

    CPC分类号: H01Q3/2605 H01Q3/2652

    摘要: A system and method of adaptively correcting the excitation or receive coefficients for a phased array antenna. For a transmitting antenna, a sensor located in the near field of the antenna is used to sense the antenna transmission. A reference signal that represents the sensor response to a desired antenna transmission that is accomplished with predetermined excitation coefficients is determined. The magnitudes and phases of the excitation coefficients are modified in a predetermined manner to create a modified antenna transmission. An actual signal that represents the sensor response to the modified antenna transmission is then determined. The excitation coefficients are then corrected using the differences between the reference signal and the actual signal, such that the modified antenna transmission becomes closer to the desired antenna transmission. The method and system also apply to a receiving antenna.

    摘要翻译: 一种自适应校正相控阵天线的激励或接收系数的系统和方法。 对于发射天线,位于天线近场的传感器用于感测天线传输。 确定用预定的激励系数来实现的对期望的天线传输的传感器响应的参考信号。 以预定的方式修改激励系数的幅度和相位,以产生经修改的天线传输。 然后确定表示对修改的天线传输的传感器响应的实际信号。 然后使用参考信号和实际信号之间的差来校正激励系数,使得修改的天线传输变得更接近期望的天线传输。 该方法和系统也适用于接收天线。

    Method and apparatus for multiplexing of multiple users on the same virtual circuit
    7.
    发明授权
    Method and apparatus for multiplexing of multiple users on the same virtual circuit 失效
    在同一虚拟电路上复用多个用户的方法和装置

    公开(公告)号:US06345051B1

    公开(公告)日:2002-02-05

    申请号:US09025177

    申请日:1998-02-18

    IPC分类号: H04J324

    摘要: The invention provides a method and apparatus for communicating to a destination node over a broadband network from plural users connected to an access node. A virtual circuit is provisioned through the broadband network for connecting the access node to the destination node. Data units are received from plural users at the access node, with each data unit having plural cells. The data units are multiplexed onto the virtual circuit at the access node such that the cells of any one data unit are noninterleaving with the cells of any other data unit on the virtual circuit. In a preferred embodiment, the destination node is a service provider node in an ATM network and the data units are Ethernet protocol data units that comprise plural ATM cells. According to another aspect, an access node for communicating to a service provider node over an ATM network includes at least one line unit for transmitting Ethernet protocol data units to and from plural users, each Ethernet protocol data unit comprising plural ATM cells, the line unit coupling the ATM cells to and from a communication bus. A trunk unit coupled to the communication bus transmits and receives ATM cells to and from the ATM network.

    摘要翻译: 本发明提供一种用于通过宽带网络从连接到接入节点的多个用户通信到目的地节点的方法和装置。 通过宽带网络提供虚拟电路,用于将接入节点连接到目的地节点。 数据单元从接入节点的多个用户接收,每个数据单元具有多个小区。 数据单元被复用到接入节点处的虚拟电路上,使得任何一个数据单元的单元与虚拟电路上的任何其他数据单元的单元不交织。 在优选实施例中,目的地节点是ATM网络中的服务提供商节点,并且数据单元是包括多个ATM信元的以太网协议数据单元。 根据另一方面,用于通过ATM网络与服务提供商节点通信的接入节点包括至少一个线路单元,用于向多个用户发送以太网协议数据单元和从多个用户发送以太网协议数据单元,每个以太网协议数据单元包括多个ATM信元,线路单元 将ATM信元与通信总线耦合。 耦合到通信总线的中继单元向ATM网络发送ATM信元并从ATM网络接收ATM信元。