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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.
Calling a Function: Here is an illustration of the call to this function in which value returned is stored in the default variable ans: >> calcarea(4) ans = 50.2655
design a rc phase shift oscillator for a particular frequency of oscillation and generate a sinusoidal signal
function y=tps(r) % This is the thin-plate spline if r y=0; else y=r^2*log(r); end function y=fun(point) % my target function x=point(1); z=point(2); y=7-4*x^2+z^3;
Strings: The MATLAB also handles strings that are a sequence of characters in single quotes. For illustration, using the double function on a string will represent the equival
Compute the result: To compute the area, the formula is required. In this situation, the area of the circle is π multiplied by the radius squared. Therefore, that means the va
Implement a MatLab function to calculate y. The function should take two input arguments 1) A vector of parameters In the above example this would be of length 3, the first
RECOGNIZER and TRANSLATOR: i want to recognized devanagari word using matlab. I have done it using template matching. but i am not get devanagari word at the output. But get speci
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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
Scripts with Input and output: Placing all this together, we can implement the algorithm from the starting of this section. The following script computes and prints the area o
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