THE OPTIMUM RUNNING APPROXIMATION OF FIR FILTER BANK AND ITS APPLICATION TO MULTICAST EMERGENCY SYSTEM(INTERNATIONAL Workshop on Advanced Image Technology 2008)

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概要

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• In this paper, we present the optimum extended interpolatory approximation of signals that is time-limited in wide interval in the time-domain and is band-limited approximately in the frequency domain. Firstly, we provide a method of obtaining optimum interpolation functions for a certain measure of absolute error. Based on this method, we present interesting design of FIR type filter bank and transmultiplexer. In this discussion, we establish the optimum FIR filter bank and FIR transmultiplexer minimizing various measure of transmission error of each channel independently and/or simultaneously. Secondly, using this system, we present useful multicast emergency systems based on FPGA that realize the optimum transmission filters in broadband side promptly when receiving filters change by serious accidental event. Finally, from the implementation examples, the effectiveness of the presented technique is given.

• 一般社団法人電子情報通信学会の論文
• 2007-12-31

著者

• Kida Yuichi

  School Of Pharmaceutical Sciences Ohu University

• Kida Takuro

  Department Of Ee Eng. Nihon University

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