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MATLAB_Assignment_2_Due_Feb_18_2009

# MATLAB_Assignment_2_Due_Feb_18_2009 - amplitude of each of...

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MATLAB Assignment #02 ECSE-2410 Signals & Systems – Spring 2009 Due: Wed 02/18/09 For the following MATLAB Problems, make sure to hand in all code and provide explanation when necessary. Also, be sure to label plot and show titles. 1(30). Use the MATLAB wavread command to read in three .wav files of your choice. Name each of your signals such that the variable name reflects the name of the song/audio being played. If you need .wav files, either record them yourself using sound recorder or take one from www.rpi.edu/~ashdoj . Play each sound file and experiment with using different sampling frequencies other than CD quality (44.1 kHz). Describe the effect of using various sampling frequencies when playing back the audio. Also, plot the
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Unformatted text preview: amplitude of each of your signals versus time and use the subplot command. 2(30). Given the following complex numbers, W = 5+j34, X = 4- j21, Y = 7 +j12, and Z = 1 + j3, use Matlab to find the following and simplify where possible: (a) WX (b) Real part of WZ (c) Imaginary part of XY (d) W + Z – Y (e) W+X+Y – Z (f) WW * (g) Z + Z * (h) magnitude of WY (i) phase of WY (j) WY in polar form (k) W/X (l) (WXYZ)* (m) (WYZ)/(XYZ) 3(40). Use SIMULINK to model the following differential equations. For full credit, show the model for the differential equation and show the output y(t). Hint: use a scope . (a) ) sin( 4 t y dt dy =-(b) ) ( 7 t u y dt dy = + (c) ) ( 7 3 2 2 t u y dt dy dt y d = +-(d) ) cos( 7 6 2 2 t y dt dy dt y d =--...
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