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1. 发明申请

US20110176636A1 HIGH-EFFICIENCY ALL-DIGITAL TRANSMITTER 有权
标题翻译：高效全数字发射器
公开(公告)号：US20110176636A1
公开(公告)日：2011-07-21
申请号：US12690870
申请日：2010-01-20
申请人： Hua Wang , Toru Matsuura , Gregoire Ie Grand de Mercey , Paul Cheng-Po Liang , Koji Takinami , Richard W. D. Booth
发明人： Hua Wang , Toru Matsuura , Gregoire Ie Grand de Mercey , Paul Cheng-Po Liang , Koji Takinami , Richard W. D. Booth
IPC分类号： H04L27/12
CPC分类号： H04L27/36 , H03D7/165
摘要： A low cost high-efficiency all-digital transmitter using all-digital power amplifiers (“DPA”) and various mapping techniques to generate an output signal, which substantially reproduces a baseband signal at a carrier frequency. A baseband signal generator generates a baseband signal which is quantized by a signal processor using a quantization map. A DPA control mapper outputs control signals to phase selectors using the quantized signal and a quantization table. Each phase selector receives one of the control signals and outputs a waveform at a carrier frequency with a phase corresponding to the control signals, or an inactive signal. Each DPA in a DPA array has an assigned weight, receives one of the waveforms from the phase selectors, and outputs a power signal according to the weight of the DPA and the phase of the received waveform. The combined power signal substantially reproduces the baseband signal at the carrier frequency.
摘要翻译：使用全数字功率放大器（“DPA”）和各种映射技术的低成本高效全数字发射机产生输出信号，其基本上以载波频率再现基带信号。基带信号发生器生成使用量化映射由信号处理器量化的基带信号。 DPA控制映射器使用量化信号和量化表将控制信号输出到相位选择器。每个相位选择器接收一个控制信号，并以与控制信号相对应的相位的载波频率或无效信号输出波形。 DPA阵列中的每个DPA具有分配的权重，从相位选择器接收波形之一，并根据DPA的权重和接收波形的相位输出功率信号。组合功率信号基本上以载波频率再现基带信号。

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