Award For Creativity in Engineering

工程创意奖

• 批准号: 9017558
• 负责人: Daniel Costello
• 金额: $ 9万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-09-01 至 1994-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9017558&HistoricalAwards=false
• 关键词: Award; Creativity; Engineering

The proposed research plans to improve the performance of trellis coded modulation. Trellis coded modulation (TCM) improves the noise performance of digital transmission without increasing the required bandwidth or reducing the effective data rate. The performance improvement reduces the power requirements for transmission at a specific data rate. %%% The primary goal is to investigate methods of analytically evaluate the distance of TCM codes. In developing a simple, effective method to evaluate TCM codes distances, comparison of codes will be facilitated. In addition, it is hoped that the analytical evaluation method will lead to a code design method which increases TCM code performance. The evaluation technique will be confirmed by computer simulations.

提出了改进栅格编码调制性能的研究计划。网格编码调制（TCM）在不增加带宽和降低有效数据速率的前提下，改善了数字传输的噪声性能。性能的提高降低了在特定数据速率下传输的功率要求。主要目的是探讨中药编码距离的解析评价方法。开发一种简单、有效的中医码距评价方法，将有助于码间的比较。此外，本文还希望通过分析性评价方法，能够产生一种提高TCM代码性能的代码设计方法。该评价方法将通过计算机模拟得到验证。