220-P2-F10 - ECE 220 Signals and Systems I Fall 2007...

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ECE 220 Signals and Systems I Fall 2007 Laboratory project 2 Report due: The purpose of this project is to use MATLAB for the support of the “manual” computation of convolution (and practice signal manipulations and plotting), and to study causality of some linear time-invariant systems. 1. Signal generation You will need two signals in this exercise: one for the system input and another for the impulse response. Recall that while the impulse response characterizes the system it is also a signal: the response of the system to the unit impulse. Use the Lab_1 function, introduced in Exercise 1, for one of the signals. For the other signal, write a new function by modifying Lab_1, the following way: function[x] = Lab_2(t); x= zeros(1, length(t)); for i = 1: length(t) if (t(i)>= - x(i) = 1; else x(i) = 0; end end (The arrows indicate the lines that you need to modify.) What mathematical function is Lab_2(t)? Plot this function. (Note: this MATLAB function code could be made two
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220-P2-F10 - ECE 220 Signals and Systems I Fall 2007...

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