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RPI - ECSE - 2410
Assignment #13 ECSE-2410 Signals & Systems - Fall 2006 Fri 10/27/06Read Section 6.5. Also feel free to use anything you know about Laplace transform to solve these problems, if it's appropriate. 1(10). Text 6.92(20). Text 6.153(10). Text 6.19 4
RPI - ECSE - 2410
Interpretation in Frequency Domain Considerx(t ) = cos m t = 1 e jmt + 1 e - jmt => X ( ) = ( - m ) + ( + m ) 2 2X ( )0mOversampling ( s> 2 m )filter0msUndersampling ( s< 2 m )filter0m sPg. 10 in Note 17
RPI - ECSE - 2410
Assignment #20 ECSE-2410 Signals & Systems - Spring 2007 Tue 04/24/071(25). For the system X ( s )H (s)Y ( s)(A)(15). Calculate the step response when (a) H ( s ) = 1 (s + 10)(s + 1) ) (b) H ( s ) =(s + 9 ) (s + 10)(s + 1) )(c) H ( s ) =
RPI - ECSE - 2410
Assignment #10 ECSE-2410 Signals & Systems - Spring 2007 1.(20 pts) Find the Fourier transform of Due Fri 03/02/07x(t )truncated cosine wave1-12t2.(15 pts) Suppose y (t ) = x (t ) cos( 2t ) , where x(t ) has the Fourier transform shown
RPI - ECSE - 2410
Assignment #15 ECSE-2410 Signals & Systems - Spring 2007 Fri 03/30/071(28). Find the Laplace transform of 1 1< t < 3 (a)(8) x a (t) = . 0 else (b)(10) xb (t) = e-(t - 2) u(t - 3) . (c)(10) xc (t) = 5 e-2 t cos( t + 45 ) u(t) .2(30). Find the
RPI - ECSE - 2410
100 Midterm Average S&S Spr07 Ave=64 90 80 70 60 50 40 30 20 10 0 1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82 85 88 91 94
RPI - ECSE - 2410
Assignment #12 p.1 ECSE-2410 Signals & Systems - Fall 2006 Fri 10/24/061(5). Consider the signal x(t)=3cos( t)+2cos(3 t)+cos(8 t). Find the Nyquist sampling frequency, s, which guarantees that x(t) can be recovered from its samples. 2(10). Find th
RPI - ECSE - 2410
Assignment #10 p.1 ECSE-2410 Signals & Systems - Fall 2006 1(10). Suppose we know the Fourier transform pair F x(t ) = 1 2Due Fri 10/13/06 e- t2 2 - = X ( ) = e 2 , called the 2Gaussian pulse. Use the duality property developed in c
UIllinois - PHYS - 140
PHYS140 Spring 2008 General Information I. Lectures Tuesday and Thursday, 141 Loomis Laboratory of Physics (LLP)Lecture Section A1: Lecture Section A2: 12:30 1:45 pm 2:00 3:15 p.m. II. Course Web Site: http:/online.physics.u
RPI - ECSE - 2410
Interpretation in Frequency Domain Considerx(t ) = cos m t = 1 e jmt + 1 e - jmt => X ( ) = ( - m ) + ( + m ) 2 2X ( )0mOversampling ( s> 2 m )filter0msUndersampling ( s< 2 m )filter0m sPg. 10 in Note 17
RPI - ECSE - 2410
Assignment #9 ECSE-2410 Signals & Systems - Fall 2006 In all the problems below, use properties. No integrations of the defining equation. 1(15). Find the Fourier transform of x(t ) = p (t ) cos(t ) , where p (t ) = u (t ) - u (t - 2 ) . Due Fri 10/0
RPI - ECSE - 2410
100 S&S Final Exam F'06 Ave=64 9080706050403020100 1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 55 58 61 64 67 70 73 76 79 82 85 88
RPI - ECSE - 2410
Assignment #15 p.1 ECSE-2410 Signals & Systems - Fall 2006 1(20). Consider the RLC circuit below. + R x(t) L C y(t) + Fri 11/03/06The differential equation governing the input and output relationship is given by d2y dy LC 2 + RC + y = x dt dt a(5)
RPI - ECSE - 2410
Assignment #18 ECSE-2410 Signals & Systems - Spring 2007 1(75). Given the system, D(s) + + + H2(s) H3(s) Y(s) Fri 04/13/07X(s)H1(s)where H 1 ( s) = K + K1 s , H 2 ( s ) =1 , and H 3 ( s ) = 1 . ( s + 1)( s + 2)The purpose of K is to provide
RPI - ECSE - 2410
Assignment #16 ECSE-2410 Signals & Systems - Spring 2007 Tue 04/3/071(30). Find the inverse Laplace transform of (a)(10). X a (s) = s+3 . Express your answer in the form A e- t cos( t + ) u(t) + Be - t u (t ) . 2 (s + 2) ( s + s + 1) s + 0.5 .
RPI - ECSE - 2410
Assignment #5 p.1 ECSE-2410 Signals & Systems - Spring 2007 Due Fri 02/02/071(20). Carry out the convolution, y (t ) = v (t ) w(t ) , of the signals shown, and sketch your result. Study the relationships between these examples to determine the ge
RPI - ECSE - 2410
Assignment #18 Solutions p.1 ECSE-2410 Signals & Systems - Fall 2006 1(15). The root locus below is for a system with the closed-loop transfer function Fri 11/17/06Y(s) K G(s) . The = X(s) 1 + K G(s) breakaway point is b = -4.44. Note: All the p
RPI - ECSE - 2410
RIN 660355651 660387880 660355457 660375154 660387683 660375081 660370876 660389083 660374558 660301395 660387941 660337369 660310754 660387958 660329891 660373148 660276297 660358597 660334964 660434086 660347724 660389407 660370333 660387763 660548
RPI - ECSE - 2410
Assignment #22 ECSE-2410 Signals & Systems - Spring 2007 1(14). Find X(z), the z-transform (in closed form) of the following repeating sequences: (a)(8). x[n] = {1, 0, -1, 2, 1, 0, -1, 2, 1, 0, -1, 2,.}. (b)(6). x[n] = { 0, 0, 1, 2, 3, 1, 2, 3, 1, 2,
RPI - ECSE - 2410
Assignment #20 ECSE-2410 Signals & Systems - Fall 2006 Tue 11/21/061(20). This problem illustrates a practical scheme for finding transfer functions, if we know something about the order of the system. This meter is basically a DC motor! A spring-r
RPI - ECSE - 2410
100 90 80 70 60 50 40 30 20 10 0 1 5 9 13 17 21 25 29 33 37 41 45 49 53 57 61 65 69 73 77 81 85 89 93 Exam#2 S&S Spr07 Ave=58
RPI - ECSE - 2410
Assignment #21 ECSE-2410 Signals & Systems - Spring 2007 Fri 04/27/071(10). The signal x(t)=cos(5 t) is sampled every 0.1 seconds, starting at t=0. Find X(z), the z-transform of the resulting sampled signal x[n]. Note that x[n]=0 for n<0. 2(15). a.
RPI - ECSE - 2410
In the Past: Average grade=C.Any Average grade < 55% most likely =F (Need to check each student individually).Any Average grade < 50% certainly =F.100 End of Lectures Grades S&S Spr07 Ave=65 9080706050403020100 1 4 7 10 13 16