SFWRENG 3MX3 Lecture Notes - Lecture 6: Step Response, Discrete-Time Fourier Transform, Fftw
2 Aug 2018
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Math objects made using mathtype; graphs made using winplot. Review 2: lti systems 2, abcd 2, impulse response 2, frequency response example 2, block diagrams 3, transform g(z) 3, step response 3. Sample it twice as fast, so you don"t add new frequencies. Coding: reader for . wav files, like audacity, library: fftw, they test your machine to see what runs the fastest to determine which algorithm to use, linux: jack. Difference equation: what is implemented on dsp chips such that it outputs the appropriate frequencies y n. Input: x n y n n is impulse response h n k x k y n k k y t h k x n k h t ( ) d x . 1 e i n h n e i n n. 1 e i n n i n e. Find dtft e e x n y n.
