Department of Digital Signal Processing Master of Science in Electronics Multirate Systems Homework 1 Decimation and interpolation Dr. Gordana Jovanovic Dolecek Ojeda Loredo Fernando June/15/2015 Sta. Tonantzintla, Puebla 2. Case study of Interpolation and DecimationPage Contents1 Case study of Interpolation and Decimation1.0.1 THEORY1.0.2 Sampling:1.0.3 Downsampling (Decimation):1.0.4 Upsampling (Interpolation): THEORY Sampling: Sampling is the process of representing a continuous signal with a sequence of discrete data values. Implementation of I/D sampling rate converters. decimation interpolation Resampling by rational fractions Multirate identities Polyphase representations Maximally decimated ﬁlter banks aliasing amplitude and phase distortion perfect reconstruction conditions Digital Signal Processing – p.2/25 I Decimation, I Interpolation, I Non-integer sample rate conversion, I Multistage sample rate conversion. In this episode I go over the concepts of decimation and interpolation (or, down and up sampling) of a sampled signal. Decimation and Interpolation 1. signal processing algorithms that involve more than one sampling rate. In this paper we present a tutorial overview of multirate digital signal processing as applied to systems for decimation and interpolation. Viewed 430 times 0 \$\begingroup\$ I have a sinusoid in continuous time, with a frequency of 18kHz, it is sampled ideally with a continuous to discrete convertor, with a frequency of 27kHz. Audio application such as to plot a time and frequency display of microphone plus a cosine using DSP. 14. Abstract: The concepts of digital signal processing are playing an increasingly important role in the area of multirate signal processing, i.e. 13. Ma. There are many more to topics and techniques in multirate digital signal processing including: I Implementation techniques, e.g. 16. polyphase lters I and Applications. Ask Question Asked 2 years, 8 months ago. designMultirateFIR(L,M) designs an FIR filter for interpolation by an integer factor L and decimation by an integer factor M. designMultirateFIR returns filter coefficients. Implementation of Decimation Process. Hello, i am looking for decimation and interpolation technique in order to, given a sampling rate fs, obtain a new sampling rate like (a/b)*fs. 1.1 Decimation and Interpolation 1.2 Digital Filter Banks Basic Multi-rate Operations: Decimation and Interpolation Building blocks for traditional single-rate digital signal processing: multiplier (with a constant), adder, delay, multiplier (of 2 signals) New building blocks in multi-rate signal processing: M-fold decimator L-fold expander It will be published Monday, April 28. This chapter investigates basics of multirate digital signal processing, illustrates how to change a sampling rate for speech and audio signals, and describes the polyphase implementation for the decimation filter and interpolation filter. Read a .wav file and match with their respective spectrograms. 12. These coefficients are to be used with dsp.FIRDecimator (L=1), dsp.FIRInterpolator (M=1), and dsp.FIRRateConverter (general case). Interpolation and decimation. In practice, sampling is performed by applying a continuous signal … 15. Active 2 years, 7 months ago. Implementation of Interpolation Process. It also looks at multistage decimation and polyphase filters. And techniques in multirate digital signal processing algorithms that involve more than one sampling.., and dsp.FIRRateConverter ( general case ) audio application such as to plot a time frequency. 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