Modulation, Detection and Coding for Reliable Information Storage and Retrieval.

用于可靠信息存储和检索的调制、检测和编码。

• 批准号: 9105639
• 负责人: Jack Wolf
• 金额: $ 25.5万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-09-01 至 1995-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9105639&HistoricalAwards=false
• 关键词: Modulation; Detection; Coding; Reliable; Information

This research is concerned with developing new modulation, detection, and coding systems for increasing the density of reliable digital data storage and retrieval on magnetic media. In order to design better and more efficient signal processing systems a thorough knowledge of the signal and noise characteristics of the storage channel must be obtained. Thus experimental data will be collected to better characterize the input-output characteristics of the channel. In particular, emphasis will be placed on measuring effects that occur at high recording densities, e.g., signal nonlinearities. Based on these measurements, mathematical models will be developed which describe the input-output characteristics of the channel. These models will be used to suggest improved modulation, detection, and coding systems. The performance of these systems will be evaluated based upon these models and compared to alternative systems.

这项研究涉及开发新的调制、检测和编码系统，以提高磁介质上可靠的数字数据存储和检索的密度。 为了设计更好、更高效的信号处理系统，必须全面了解存储通道的信号和噪声特性。 因此将收集实验数据以更好地表征通道的输入输出特性。 特别是，重点将放在测量高记录密度下发生的效应，例如信号非线性。 基于这些测量，将开发数学模型来描述通道的输入输出特性。 这些模型将用于建议改进的调制、检测和编码系统。 这些系统的性能将根据这些模型进行评估，并与替代系统进行比较。