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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.
(a) Using Matlab, find and plot the magnitude of the DTFT of 10 samples of x(n) for n=[0:1:9] of x(n) = cos(2*pi*f1*n) + cos(2*pi*f2*n) for f1=0.22 and f2=0.24 and pad zeros to ge
Your Task: Write an M-function that computes simple returns as formula (1). Use this function to calculate the daily returns for each index. Using MATLAB build-in functions estimat
The circuit diagram of an active filter is shown below. (a) Determine an expression for the transfer function of the filter. (b) Hence find an expression for the frequency res
The Requirement details of project are as below. I also need detail description for presentation. For the project, given the training dataset ticdata2000.txt use any method you
Write a function called threshold2 (in a file called 'threshold2.m'). The function takes an arbitrary number of input variables. The first input variable, t, is required and is the
I need this task to be done with discription of matlab coding.
write the program sum of two numbers using matlab code
Problem: Consider a trapezoidal piece of polymer film as shown below. The parallel sides of the trapezoid are insulated and the temperature of the bottom and diagonal sides are f
1. Write a function to threshold your images separating the background from the foreground: Implement the "peakiness" detection algorithm described in class. The output of your
Order of precedence: As with the numerical operators, it is significant to know that the operator precedence rules. Table below shows the rules for the operators which have b
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