Design of NPR-Type Cosine Modulated Filterbank Using Combinational Window Functions

• 作者: Alok Jain Rajiv Saxena Ram Kumar Soni
• 来源期刊: 通讯、网络与系统学国际期刊(英文)
• 学科: 数学
• 关键词: Combinational Window Functions SLFOR Far-End ATTENUATION STOPBAND Energy
• 年，卷（期）: 2010,（12）
• 页码范围: 934-942
• 页数: 9页
• 分类号: O1

摘要

This paper presents the design of near perfect reconstruction (NPR) cosine modulated filterbank (CMFB). The prototype filter is designed by the combinational window functions. These window functions provide high side-lobe-fall-off-rate (SLFOR) with better far-end attenuation which suppresses the undesired inter-ferences occur in the filterbank. A linear optimization is used to minimize the error parameters. Design ex-amples have been included to illustrate the effectiveness of the proposed technique over the earlier reported work.