Optimal Design of 1-D IIR Filter Banks and 2-D IIR Filters

• Main Authors: Niu, I-Ching, 牛挹青
• Other Authors: Lee, Ju-Hong
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/83124583717594043411

碩士 === 國立臺灣大學 === 電信工程學研究所 === 87 === Owing to the increasing use of digital signal processing, the design of digital filters and digital filter banks has become more and more important.In this thesis, it should be noted that a systematic algorithm is proposed as the basis to design the IIR filters and filter banks. However, this basic algorithm, in the various designing structure, is sometimes aided by WLS and Karmarkar''s algorithms to achieve a good design in certain optimal senses. To control the stability of the IIR filter, we replace the denominator of filter with lattice structure. That is, the reflection coefficients have been considered as the coefficients in the design. We therefore can directly control the stability of the filters by controlling the magnitude of these coefficients. The structure has been used in this thesis to design 1-D filter banks and 2-D filters. The satisfactory results as shown in the design examples given in this thesis have therefore successfully proven that the proposed design methods to be sound and viable.