Study of quasi mutual orthogonality of digital transmultiplexer

摘要

After dividing signal into sub bends by analysis filters in the filter bank system treated in this research, we obtain the output that are unified by synthetic filters. In this system, input end output equal approximaty. When input end output equal approximaty, digital transformer multiplexer and quasi mutual orthogonality are discussed. For the optimum interpolation approximation, we minimize the maximum approximation error Emax(t) between input and output. We design digital transformer multiplexer by minimazing approximation error which is. the summation of Exam(t) and term for quasi mutual orthogonality.