Optimized design of decimator for alias removal in multirate DSP applications
WAMUS'10 Proceedings of the 10th WSEAS international conference on Wavelet analysis and multirate systems
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There are many applications in communication systems where the sampling rate must be changed. Interpolators and decimators are utilized to increase or decrease the sampling rate. Computationally efficient implementation of interpolators and decimators employ polyphase decomposition. In this work, the authors present new methods for performing decimation or interpolations similar to the way numbers are multiplied on paper. Their proposed methods are easy to learn and compute and can be incorporated into digital signal processing (DSP) courses that deal with multirate filters