Adaptive antenna system and method
    31.
    发明授权
    Adaptive antenna system and method 有权
    自适应天线系统及方法

    公开(公告)号:US06421005B1

    公开(公告)日:2002-07-16

    申请号:US09635134

    申请日:2000-08-09

    IPC分类号: H04B700

    摘要: A system and method have been developed wherein a cylindrical antenna array is configured and reconfigured in a wireless communication network. Position and signal information are continuously received from wireless mobile units and are used to determine reconfigurations of antenna components of the cylindrical antenna array to enhance performance of the system. As such, base station antennas are dynamically configured to minimize such things as interference and dropped calls, and to maximize their voice quality both within a cell, and among neighboring cells.

    摘要翻译: 已经开发了一种在无线通信网络中配置和重新配置圆柱形天线阵列的系统和方法。 从无线移动单元连续地接收位置和信号信息,并且用于确定圆筒形天线阵列的天线部件的重新配置以增强系统的性能。 因此,基站天线被动态地配置为最小化诸如干扰和丢弃呼叫的事情,并且在小区内和相邻小区之间最大化其语音质量。

    Method and apparatus for characterizing an input signal
    32.
    发明授权
    Method and apparatus for characterizing an input signal 失效
    用于表征输入信号的方法和装置

    公开(公告)号:US5715372A

    公开(公告)日:1998-02-03

    申请号:US370917

    申请日:1995-01-10

    摘要: The present invention provides a method and apparatus for measuring at least one signal characteristic. Initially, a set of features is selected which characterize a signal. An intelligent system, such as a neural network, is trained in the relationship between feature sets and signal characteristics. The selected feature set is then extracted from a first input signal. The extracted feature set from the first signal is input to the trained intelligent system. The intelligent system creates an output signal based on the feature set extracted from the first input signal. This output signal is then used to characterize the input signal. In one embodiment, the invention assesses voice quality, typically as expressed in MOS scores, in a manner which accurately corresponds to the analysis of human evaluators. For voice signals processed by voice coders, the present invention provides a measurement technique which is independent of various voice coding algorithms and consistent for any given algorithm.

    摘要翻译: 本发明提供一种用于测量至少一个信号特性的方法和装置。 最初,选择表征信号的一组特征。 在特征集和信号特征之间的关系中训练诸如神经网络的智能系统。 然后从第一输入信号中提取所选择的特征集。 从第一个信号提取的特征集输入到训练有素的智能系统。 智能系统基于从第一输入信号提取的特征集创建输出信号。 该输出信号用于表征输入信号。 在一个实施例中,本发明以精确对应于人类评估者分析的方式评估通常以MOS得分表示的语音质量。 对于由语音编码器处理的语音信号,本发明提供了独立于各种语音编码算法并且对​​于任何给定的算法是一致的测量技术。