A#15 - MATLAB to plot 500 points from w=10-1 to w=10...

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Assignment #15 ECSE-2410 Signals & Systems - Spring 2009 Due Tue 03/24/09 1(60). () + + + = 1 50 1 1 1 . 0 50 ) ( ω ωω j j j j H (a) Sketch the straight-line Bode magnitude plot for. Label all key magnitude, frequency and slope values. (b) Sketch the approximate phase plot. (c) Using the Bode phase approximation, determine the approximate phase when 10 1 = . (d) Using the Bode phase approximation, at what frequency is the phase 4 3 π ? (e) Use the bode command in MATLAB to obtain the magnitude and phase plots. Submit your MATLAB code with the two graphs. Your name should appear in the title of each graph. MATLAB requires that the frequency response be expressed in descending powers of j , as, the code, for example, for 10 ) ( 51 ) ( 5 0 ) ( 50 ) ( 2 + + + = j j j H , is Adding w=logspace(-1,3,500), and replacing bode(num,den) with bode(num,den,w) causes
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Unformatted text preview: MATLAB to plot 500 points from w=10-1 to w=10 3 . >> num=[50 0]; >> den=[5 51 10]; >> bode(num,den); >> title(”Bode plot – your name”); (f) By hand, draw the Bode straight-line approximations on top of the MATLAB graphs. Submit these two graphs. 2(20) (a)(10). Use the bode command in MATLAB to obtain the magnitude and phase plots for ( ) 2 1 50 10 1 5 . 10 ) ( ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ + + ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ + = j j j j H . Submit your MATLAB code with the two graphs. Your name should appear in the title of each graph. (b)(10). By hand, draw the Bode straight-line approximation (magnitude) and approximation of phase on top of the MATLAB graphs. Submit graphs. 3(20). Text. 6.56....
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This note was uploaded on 05/03/2009 for the course ECSE 2410 taught by Professor Wozny during the Spring '07 term at Rensselaer Polytechnic Institute.

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