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    • 1. 发明授权
    • Beam pattern shaping for transmitter array
    • 发射机阵列的光束图案整形
    • US5986972A
    • 1999-11-16
    • US54313
    • 1998-03-31
    • Peter C. Li
    • Peter C. Li
    • H04B7/06H04B17/00
    • H04B7/0682H04B7/0671
    • A method to shape a transmit beam pattern of a transmitter array. A basel time delay/phase coefficient is set for each transmitter. A plurality of beam pattern intensities are iteratively generated using the set of baseline time delays/phase coefficients and a plurality of sets of adjusted time delays/phase coefficients. Each beam pattern intensity has a unique set of time delays/phase coefficients associated therewith. Each one of the sets of adjusted time delays/phase coefficients differs from the set of baseline time delays/phase coefficients by only one time delay/phase coefficient. Each beam pattern intensity is compared with the optimal beam pattern intensity to determine which one of the set of unique time delays/phase coefficients minimizes a difference between the optimal beam pattern intensity and a corresponding one of the plurality of beam pattern intensities. The set of baseline time delays/phase coefficients is then replaced with the one of the set of unique time delays/phase coefficients that minimizes the difference. The above steps of iterative generation, comparing and replacing are repeated until the difference can no longer be reduced.
    • 一种形成发射器阵列的发射波束图案的方法。 为每个发射机设置基线时间延迟/相位系数。 使用一组基线时间延迟/相位系数和多组调整的时间延迟/相位系数来迭代地生成多个波束图案强度。 每个波束图案强度具有与之相关联的一组唯一的时间延迟/相位系数。 经调整的时间延迟/相位系数中的每一组与基线时间延迟/相位系数的集合仅相差一个时间延迟/相位系数。 将每个波束图案强度与最佳波束图案强度进行比较,以确定该组唯一时间延迟/相位系数中的哪一个将最佳波束图案强度与多个波束图案强度中的相应一个之间的差最小化。 然后将基准时间延迟/相位系数集合替换为使差异最小化的唯一时间延迟/相位系数集合中的一个。 重复迭代生成,比较和替换的上述步骤,直到不能再减小差异为止。