Design of Multi-Dimensional Variable Digital Filters and Its Application to Adaptive Signal Processing

多维可变数字滤波器设计及其在自适应信号处理中的应用

• 批准号: 13650391
• 负责人: KAWAMATA Masayuki
• 金额: $ 2.56万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650391/
• 关键词: Digital Filters; Variable Filters; Multi-Dimensional Signal Processing; Adaptive Signal Processing; デジタルフィルタ; Digital Filters; Variable Filters; Multi-Dimensional Signal Processing; Adaptive Signal Processing; デジタルフィルタ

This project aims at design of multi-dimensional variable digital filters for image and its application to adaptive signal processing. Listed below are major results of this project:(a) This project presents the steady state analysis of the p-power algorithm for an adaptive IIR notch filter with constrained poles and zeros for the case when p=3 and the sinusoidal signal is contaminated with additive Gaussian noise.(b) This project proposes a new approach to design variable IIR digital filters by using a cascade of N identical individual filters of any order n.(c) This project proposes a design method of 2-D variable IIR digital filters with high frequency tuning accuracy. In the proposed method, a parallel complex allpass structure is used as the prototype structure of the 2-D variable digital filters in order to obtain low sensitivity characteristic

该项目旨在设计用于图像的多维可变数字过滤器及其用于自适应信号处理的应用。下面列出的是该项目的主要结果：（a）该项目对P-PAIRE算法进行了稳态分析，用于适应性IIR Notch滤波器，当P = 3且正弦信号和正弦信号污染具有附加性高斯噪声的情况下，该案例污染了该项目。提出了具有高频调整精度的2-D变量IIR数字过滤器的设计方法。在提出的方法中，平行复合复合物结构用作2-D变量数字过滤器的原型结构，以获得低灵敏度特征