Theory on Realization of High-Quality and High-Reliability Narrowband Signal Processing Using High-Performance Variable Digital Filters

2014 Fiscal Year Final Research Report

• Project/Area Number: 24760286
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Communication/Network engineering
• Research Institution: Tohoku University
• Principal Investigator: KOSHITA Shunsuke 東北大学, 工学(系)研究科(研究院), 助教 (70431533)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 電気電子工学 / 通信・ネットワーク工学 / 信号処理 / 適応信号処理 / 可変ディジタルフィルタ / 狭帯域信号 / 情報通信工学 / 制御工学

Outline of Final Research Achievements

This research project has further extended the result of our previous work: a narrowband signal processing method based on adaptive control of arbitrary variable digital filters. First, it has been theoretically proved that this method is of high quality and high reliability. Next, a unified framework has been established to minimize the degradation caused by the finite wordlength problem in implementation of this method. Furthermore, this method has been implemented on many practical applications of narrowband signal processing. Through performance evaluations of such applications, the utility of this method has been shown from the viewpoints of practical applications as well as mathematical theory.

Free Research Field

工学