An Analog/Mixed-Signal FFT Processor for Wideband OFDM Systems
An Analog/Mixed-Signal FFT Processor for Wideband OFDM Systems
复制标题
用于宽带 OFDM 系统的模拟/混合信号 FFT 处理器
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
Sanjay Raman
中科院分区：
文献类型：
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作者：
M. Lehne;Sanjay Raman
提出了一种模拟/混合信号（AMS）傅立叶变换电路拓扑，该拓扑具有显著降低未来宽带OFDM系统功耗的潜力。该拓扑结构将取代当前OFDM系统中基于闪存的模数转换器（ADC）和数字FFT核心，采用替代的基于模拟乘法器的转换器。通过系统仿真验证了所提系统的可行性。新的拓扑结构可以显著降低ADC/FFT模块的功耗。
An analog/mixed-signal (AMS) Fourier transform circuit topology is presented that has the potential to significantly reduce power consumption in future broad-band OFDM systems. The topology would replace the flash based analog-to-digital converter (ADC) and the digital FFT core in current OFDM systems with an alternative analog multiplier-based converter. System simulations are presented to demonstrate the feasibility of the proposed system. The new topology is shown to significantly reduce power consumption of the ADC/FFT block.