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DISIGN OF FILTERS USING GUI

Platform : DSP

This paper appears in: Information and Communication Technology in Electrical Sciences (ICTES 2007), 2007. ICTES. IET-UK International Conference AIM : TO UNDERSTAND THE GRAPHICAL USER INTERFACE WITH FILTER IS AN EXAMPLE. ABSTRACT The demand for new telecommunication services requiring higher capacities, data rates and different operating modes have motivated the development of new generation multi-standard wireless transceivers. A multi-standard design often involves extensive system level analysis and architectural partitioning, typically requiring extensive calculations. To expedite the handling of complicated design calculations, a GUI based design tool is proposed in this paper. In particular, multi-standard decimation filter design for six wireless communication standards consisting of GSM, WCDMA, WLANa, WLANb, WLANg and WiMAX is focussed. Decimation is done in two or three stages to reduce the hardware complexity and power dissipation. Each stage is implemented with optimized filters so that the overall cascaded filter response meets the specification for a particular standard. The decimation filter design tool is developed using the Graphical User Interface Development Environment (GUIDE) in MATLAB®. The implementation complexity in terms of filter length that meets the specification for any of these standards is computed using this tool and is tabulated. LEARNING OBJECTIVE : To understand about creating speech file from microphone and processing it with on real time filtering. INPUT: Input speech file created from real time microphone. OUTPUT: Simulated speech signal modified from the input speech file in terms of time and Amplitude.but modified it with the help of MATLAB GUI APPLICATIONS: Speech signal processing SOFTWARE USED : MATLAB 2007A

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