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61. 发明授权

US07415250B2 Distortion compensating amplifier 有权
标题翻译：失真补偿放大器
公开(公告)号：US07415250B2
公开(公告)日：2008-08-19
申请号：US10827081
申请日：2004-04-19
申请人： Takao Sasaki , Hideharu Shako , Hiromi Miyamoto
发明人： Takao Sasaki , Hideharu Shako , Hiromi Miyamoto
IPC分类号： H04B1/04
CPC分类号： H03F1/3247 , H03F1/3294 , H03F2200/465 , H03F2201/3227 , H03F2201/3233 , H04L27/368
摘要： Disclosed is a distortion compensating amplifier having a distortion compensator for compensating for distortion of an amplifier by updating distortion compensation coefficients so as to null a difference between a transmit signal and a feedback signal, and subjecting the transmit signal to distortion compensation processing using the distortion compensation coefficients, an amplifier for amplifying the transmit signal, which has undergone distortion compensation, in order to transmit the signal from an antenna, and a feedback unit for inputting an output signal from the amplifier to a distortion compensation coefficient updater in the distortion compensator as the feedback signal. Whether the level of an unwanted-wave signal that penetrates the amplifier from space via an antenna is greater than a set level is monitored. If the level of the unwanted-wave signal is above the set level, processing for updating distortion compensation coefficients is suspended. If the level of the unwanted-wave signal is below the set level, then processing for updating distortion compensation coefficients is resumed.
摘要翻译：公开了一种失真补偿放大器，其具有失真补偿器，用于通过更新失真补偿系数来补偿放大器的失真，以便使发送信号和反馈信号之间的差值为零，以及使用失真补偿对发送信号进行失真补偿处理系数，用于放大已经经历失真补偿的发射信号的放大器，以便从天线发射信号;以及反馈单元，用于将来自放大器的输出信号输入到失真补偿器中的失真补偿系数更新器作为反馈信号。监测通过天线从空间穿透放大器的不想要的波信号的电平是否大于设定电平。如果不想要的波信号的电平高于设定电平，则暂停用于更新失真补偿系数的处理。如果不想要的波信号的电平低于设定电平，则恢复更新失真补偿系数的处理。

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