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    • 2. 发明授权
    • High power amplifier operating point determination apparatus and method for satellite communications system
    • 用于卫星通信系统的大功率放大器工作点确定装置和方法
    • US06728650B2
    • 2004-04-27
    • US09986150
    • 2001-11-07
    • Jong Heung ParkByoung Hyun ChungSeung Woo ChungSeong-Pal Lee
    • Jong Heung ParkByoung Hyun ChungSeung Woo ChungSeong-Pal Lee
    • G06F1900
    • H03F3/602
    • A high power amplifier operating point determination apparatus and method determines an operating point of a high power amplifier for satellite communications system. For the purpose, the apparatus employs a DC voltage converting block in a channel amplifier located at a front-end of the high power amplifier, which couples an output power of the channel amplifier and converts the coupled output power to a DC voltage. Accordingly, in a ground monitoring center, before satellite launching, there are mapped the output power value of the high power amplifier and the DC voltage level of the channel amplifier per each command step assigned to an FGM or an ALC mode. After the satellite launching, it is possible to detect the operating point and the output power level of the high power amplifier based on mapped results by using the DC voltage level as telemetry information.
    • 高功率放大器工作点确定装置和方法确定用于卫星通信系统的高功率放大器的工作点。 为此,该装置在位于高功率放大器前端的通道放大器中采用直流电压转换模块,其耦合通道放大器的输出功率并将耦合的输出功率转换为直流电压。 因此,在地面监控中心,在卫星发射之前,映射每个分配给FGM或ALC模式的每个命令步骤的高功率放大器的输出功率值和信道放大器的直流电压电平。 在卫星发射后,可以通过使用直流电压电平作为遥测信息,基于映射结果来检测大功率放大器的工作点和输出功率电平。