Investigation and Evaluation of Low-Cost, Low-Power Mixed Signal Auditory Processing Systems

低成本、低功耗混合信号听觉处理系统的调查和评估

• 批准号: 9907464
• 负责人: Denise Wilson
• 金额: $ 5万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-05-01 至 2000-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9907464&HistoricalAwards=false
• 关键词: Investigation; Evaluation; Low; Cost; Power

9907464WilsonThe purpose of the proposed research is to explore the potential for mixing analog VLSI-based front-ends with DSP-based back-ends for processing auditory signals. Based on the conclusions and progress of this research, it is expected that we will be able to determine future paths of research, especially directed toward commercialization of products that incorporate analog VLSI-based pre-processing onto existing auditory processing systems. It is certainly possible that conclusions of this research might suggest a degree of futility in combining analog VLSI with DSP for these applications. Even in this worst case sce-nario, however, we expect that valuable insight into the potential of analog-VLSI circuits for auditory and other non-visual processing applications will be gained from the research.The exploratory research we propose is divided into:Understanding and applying a particular DSP Architecture (Analog Devices 2100 series) to simple auditory processing problemsImproving the design and implementation of compact, highly tunable bandpass filters in analog VLSI to suit the strengths of the DSP.Combining the DSP and improved analog VLSI front-end to process simple auditory signalsComparing the performance of analog VLSI, DSP, and mixed signal systems in processing these same auditory signals in terms of power, space, anticipated cost, and recognition accuracy. ***

9907464 WilsonThe拟议的研究的目的是探索混合模拟VLSI为基础的前端与DSP为基础的后端处理听觉信号的潜力。基于这项研究的结论和进展，预计我们将能够确定未来的研究路径，特别是针对将基于模拟VLSI的预处理纳入现有听觉处理系统的产品的商业化。当然，这项研究的结论可能表明，在这些应用中，将模拟VLSI与DSP结合在一起是徒劳的。即使在这种最坏的情况下sce-nario，然而，我们预计，有价值的洞察潜力的模拟超大规模集成电路的听觉和其他非视觉处理应用将获得从研究。探索性研究，我们建议分为：理解和应用特定的DSP架构（Analog Devices 2100系列）解决简单的听觉处理问题改进了紧凑型，在模拟VLSI中设计了高度可调谐的带通滤波器，以适应DSP的优点，将DSP与改进的模拟VLSI前端结合，从功耗、空间、预期成本和识别精度等方面比较了模拟VLSI、DSP和混合信号系统在处理这些相同的听觉信号时的性能。 ***