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(a) Find the spectrum of this waveform: x = [ exp( -[0:1:49]/10), exp(-[50:-1:1]/10)]. Subplot only the magnitude by using the spectrum program from the class notes.
(b) Using this information from the 100-point DFT, re-create the waveform by summing the sinusoidal contributions from all the DFT coefficients as done in lecture. Show both the waveform x and its re-creation xhat on another subplot. (The waveforms might merge into one figure so the mean square error is effectively zero in this case.)
(d) Using MATLAB, find the index n0 at which the spectral magnitude falls below 0.05 of its maximum (which is a point beyond which there is little energy left in the higher frequencies.)
(e) Using only the first n0 DFT coefficients, generate the waveform and plot in Matlab by using the symmetry properties of the transform. Plot xhat over the actual signal and annotate the plot to indicate the value of the calculated mse. Title and label the axes. Submit plot and code.
Creating Matrix Variables: Creating a matrix variable is actually just a generalization of creating a row and column vector variables. That is, the values within the row are s
Passing Multiple Arguments: In many situaion it is essential to pass more than one argument to the function. For illustration, the volume of a cone is given by here r
how to create adjacency matrix for amino acids in matlab?
the cost t in hundreds of dollars of tuition and fees at many community college can be approximated by t=1/2c+5 where c is the number of credits for which a student registers. ( 2
design a rc phase shift oscillator for a particular frequency of oscillation and generate a sinusoidal signal
To accept two numbers from the user; Display all prime numbers between these two numbers.
In this lab, we study the three concepts. Vector is used to store more than one value into single variable. It is similar to array (other programming language). Script is a collect
Problem 1. Create a vector representing x coordinates of a measurement with 20 points between 0 and 10. Create another vector y representing fake measurements which are related to
Illustrations of calling the function: Here are illustrations of calling the function: >> cylcost(32,73,4.50) ans = 661.5000 >> fprintf('The cost would be $%.2f\n'
The purpose of this assignment is to use Matlab/Simulink to analyse and simulate a mathematical model of an electromechanical system. This system comprises two component subsystems
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