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首页> 外文期刊>Proceedings of the IEEE >POINT OF VIEW: The Not So Digital Future of Digital Signal Processing
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POINT OF VIEW: The Not So Digital Future of Digital Signal Processing

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摘要

Before the digital revolution, image and signal processing was performed using analog circuitry. Today digital signal processing (DSP) has defined our lives. Although some mixed-signal designs are of current interest, DSP dominates everything that we own or use everyday. DSP chips exist in many devices such as our cell phones, our iPods, our wireless router, our new HDTV. The purpose of this paper is to consider possibilities of DSP outside the semiconductor or electronic domain. Organic elements (such as DNA and polymers) that conduct electricity can be used to build organic semiconductors at the molecular level 1. However, more fundamental questions can be asked. Can DSP be performed in exotic materials, such as chemical substrates, cells, organisms, or even DNA, without the use of electrical currents? Will we be able to build fully blown DSP systems out of these materials? Or will some DSP functions (such as storage and data archiving) be implemented with such materials? We do not attempt to provide a thorough scientific review of such means but to stir the engineering community towards a possible not-so-electronic future of DSP.

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