CISE Research Instrumentation

9422135月本奖项是为了购买设备，以确定主要干扰的特征，并为高密度数据存储通道设计有效的均衡方案。先进的信号处理和通信技术在提高磁数据存储系统的可靠性和存储容量方面发挥着越来越重要的作用。虽然在许多方面与大多数通信通道相似，但磁存储通道遭受与在其他通信通道中观察到的那些显著不同的通道干扰。目前，描述受非加性介质噪声和非线性失真破坏的高密度磁通道中的读写过程的通信通道模型正在开发中。还在研究适合于在这种恶劣的信道条件下进行磁记录的有效均衡和信道估计方案。为了进行通道特性和信号处理的研究，正在开发实验磁盘主轴系统。该设备将用于开发这些试验性测试主轴系统，以支持几个研究项目，特别是：非线性表征、非线性均衡器设计、自适应通道识别/均衡、转换噪声表征，以及用于窄磁道记录的读出换能器的设计。***

9422135 Moon This award is to purchase equipment for characterizing major disturbances and designing effective equalization schemes for high density data storage channels. Advanced signal processing and communications techniques are playing an increasingly important role in improving reliability and storage capacity of magnetic data storage systems. Although similar to most communication channels in many respects, magnetic storage channels suffer from channel disturbances that are considerably different from those observed in other communication channels. Presently, a communication channel model describing the read and write processes in the high density magnetic channel corrupted by nonadditive media noise and nonlinear distortion is being developed. The effective equalization and channel estimation schemes suitable for magnetic recording under such severe channel conditions are also being investigated. Experimental disk spindle systems are under development to pursue the channel characterization and signal processing research. The equipment will be used to develop these experimental test spindle systems to support several research projects, including in particular: characterization of nonlinearity, design of nonlinear equalizers, adaptive channel identification/equalization, characterization of transition noise, and design of a read transducer for narrow track recording. ***