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This document describes a lab experiment on signal addition and multiplication. The experiment involves adding and subtracting signals, as well as multiplying signals. Specifically, it asks the student to: 1) add signals like u[n] + u[-n] and u[n+2] + u[n-2], 2) subtract signals like u[n] - u[n+5] and [1,2,3,4,5] - [5,4,3,2,1], 3) multiply signals like 2n x u[n], and 4) decompose the signal [1,2,3,4,5,4,3,2,1] into its even and odd parts
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matlab 2
- 1. Lab No.11 Practice (Signal Addition and Multiplication) Designed by : Dawar Awan dawar@cecos.edu.pk CECOS College of Engineering and IT March – July 2012
- 2. Concept Fourier series theory states that a periodic wave can be represented as a summation of sinusoidal waves with different frequencies, amplitudes and phase values. The frequencies of the sinusoids are harmonically related. fk = k.fo Where fo is the fundamental frequency and fk is the kth harmonic. CECOS College of Engineering and IT March – July 2012
- 3. Signal addition CECOS College of Engineering and IT March – July 2012
- 4. Signal addition y1 y2 CECOS College of Engineering and IT March – July 2012
- 5. Signal addition CECOS College of Engineering and IT March – July 2012
- 6. Task 1. Perform the following signal additions a) u[n] + u[-n] b) u[n+2] + u[n-2] 2. Perform the following signal subtractions a) u[n] - u [n+5] b) [1,2,3,4,5] - [5,4,3,2,1] 3. Multiply the following two signals a) 2n x u[n] 4. Decompose the following signal into its even and odd parts a) [1,2,3,4,5,4,3,2,1] Assume -5 ≤ n ≤ 5 for all questions CECOS College of Engineering and IT March – July 2012