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CN101827058A 发射机、接收机、功率放大方法以及信号解调方法 失效 - 权利终止

发射机、接收机、功率放大方法以及信号解调方法
Abstract:
本发明的目的是提供减少对邻接频带的干扰的发射机和功率放大方法。本发明的发射机具有：非线性输入输出转换特性控制部，其根据频带的使用状况来决定信号转换用的非线性输入输出转换特性；振幅控制部，其根据所决定的非线性输入输出转换特性，转换信号的振幅；以及发送功率放大部，其对转换了振幅后的信号进行功率放大。并且，本发明的发射机具有：非线性输入输出转换特性控制部，其根据频带的使用状况来决定信号转换用的非线性输入输出转换特性；多个发送功率放大部，其具有相互不同的非线性输入输出转换特性；以及选择部，其根据所决定的非线性输入输出转换特性，选择所述多个发送功率放大部中的一方。
Abstract(English):

There is provided a transmitter including a nonlinear input-output conversion characteristic control unit configured to determine a nonlinear input-output conversion characteristic for converting a signal depending on a usage status of a frequency band; an amplitude control unit configured to convert an amplitude of the signal based on the determined nonlinear input-output conversion characteristic; and a transmission power amplification unit configured to amplify power of the signal with the converted amplitude. There is also provided a transmitter including a nonlinear input-output conversion characteristic control unit configured to determine a nonlinear input-output conversion characteristic for converting a signal depending on a usage status of a frequency band; plural transmission power amplification units having different nonlinear input-output conversion characteristics; and a selecting unit configured to select one of the plural transmission power amplification units based on the determined nonlinear input-output conversion characteristic.

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