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    • 1. 发明授权
    • System for and method of jointly optimizing the transmit antenna patterns of two geostationary satellites in a satellite broadcasting system
    • 联合优化卫星广播系统中两颗对地静止卫星的发射天线方式的系统和方法
    • US06470058B1
    • 2002-10-22
    • US09877102
    • 2001-06-11
    • Richard A. MichalskiCharles Kittiver
    • Richard A. MichalskiCharles Kittiver
    • H04B706
    • H04B7/18534Y02D70/446
    • A system for and method of providing optimizing the antenna patterns on a first satellite and a second satellite that operate in conjunction to deliver content to a single radio receiver. The process begins by first selecting an objective predictive model for predicting link margin at a first location and a link margin at a second location. The model is used further to determine an initial required transmit power flux densities to achieve the first and second link margins. Then the power flux density is adjusted for the first location by decreasing the power flux density for the first satellite and simultaneously increasing the power flux density for the second satellite. The predicted joint availability for the first location is then predicted. In the event the required power flux density cannot be achieved to achieve a desired joint availability across an entire geographical region, the power flux density for both the first and second satellites for the first location are decreased.
    • 一种用于提供优化在第一卫星和第二卫星上优化天线方向图的系统和方法,所述第一卫星和第二卫星一起工作以将内容传送到单个无线电接收机。 该过程开始于首先选择用于预测第一位置处的链接边距和第二位置处的链接边距的客观预测模型。 该模型进一步用于确定初始所需的发射功率通量密度以实现第一和第二链路余量。 然后通过降低第一卫星的功率通量密度来调整第一位置的功率通量密度,并同时增加第二颗卫星的功率通量密度。 然后预测第一个位置的预测联合可用性。 在无法实现所需功率通量密度以实现整个地理区域期望的联合可用性的情况下,用于第一位置的第一和第二卫星的功率通量密度都降低。