An improved and simplified design of pseudo-transmultiplexer using Blackman window family

Authors:
Ram Kumar Soni;Alok Jain;Rajiv Saxena
Affiliations:
Department of Electronics & Communication Engineering, Samrat Ashok Technological Institute (Polytechnic), Vidisha, India;Department of Electronics & Instrumentation Engineering, Samrat Ashok Technological Institute, Vidisha, India;Department of Electronics & Communication Engineering, Jay-Pee Institute of Engineering & Technology, Raghogarh, Guna, India
Venue:
Digital Signal Processing
Year:
2010

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Abstract

An improved and simplified approach for the design of nearly perfect reconstructed pseudo-transmultiplexer is proposed. Blackman window and its variants are used to design the prototype filter. The most important problem in the design of transmultiplexer is the existence of interference parameters like inter-channel interference (ICI) and inter-symbol interference (ISI). A generalized linear optimization technique is proposed to minimize these undesired interference parameters. The cutoff frequency of the prototype filter is selected as a variable parameter. The main feature of the proposed design scheme is that it significantly reduces the interference parameters of the transmultiplexer.