Optimal design of variable 1-D and 2-D FIR digital filters

• Main Authors: Lin Ming Che, 林明哲
• Other Authors: Lee JuHong
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/67826726479510812761

碩士 === 國立臺灣大學 === 電信工程學研究所 === 91 === The thesis we proposed focus on designing variable digital filters using the optimal criterion called “weighted least square”, including fractional group delay and variable magnitude response. First, we simply introduce what’s variable digital filters and its application, then we adopt polynomial-based and sinusoid-based to implement 1-D and 2-D fractional group delay filter and 1-D filter capable of fractional group delay and variable magnitude simultaneously. Both the optimal coefficient and performance comparison list in the end of each chapter. For supplying to other researchers who interest in variable digital filters, we append lots of figures and proof that the algorithms are correct at the same time.