CISE Research Instrumentation

小行星9422135 该合同用于购买设备，以确定高密度数据存储通道的主要干扰特征并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。 尽管在许多方面类似于大多数通信信道，但磁存储信道遭受信道干扰，这些信道干扰与在其他通信信道中观察到的信道干扰显著不同。 目前，一个描述在非加性介质噪声和非线性失真的高密度磁信道中的读写过程的通信信道模型正在开发中。 有效的均衡和信道估计方案，适用于磁记录在这种恶劣的信道条件下也正在研究。 实验磁盘主轴系统正在开发中，以追求信道特性和信号处理的研究。 该设备将用于开发这些实验测试主轴系统，以支持几个研究项目，特别是包括：非线性特性，非线性均衡器的设计，自适应通道识别/均衡，过渡噪声的特性，以及窄磁道记录的读传感器的设计。 ***

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. ***