Find the spectrum of waveform, MATLAB Programming

Assignment Help:

(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.


Related Discussions:- Find the spectrum of waveform

Sum of two numbers, write the program sum of two numbers using matlab code

write the program sum of two numbers using matlab code

Writing data to a file, Writing data to a File: The save function can ...

Writing data to a File: The save function can be used to write a data from the matrix to the data file, or to append a data file. The format is as shown below: save filenam

Calculates the inverse of matrix by gauss-jordan elimination, Write a funct...

Write a function that solves a system of linear equations or calculates the inverse of a matrix by Gauss-Jordan elimination. Your function should accept a matrix as an argument and

Error in variables statements, Error in variables statements: Error: T...

Error in variables statements: Error: The expression in the left of equals sign is not a valid target for an assignment. >>  By placing a semicolon at the end of the sta

Create a new vector - vector manipulation, Write single MATLAB statements t...

Write single MATLAB statements to create these vectors from any vector Z. You can use vector Z shown as a sample input. Create a single m-file script (non-function) to containing a

Script - matlab, Script - MATLAB: The script is a series of MATLAB ins...

Script - MATLAB: The script is a series of MATLAB instructions which is stored in a file and saved. The contents of a script can be showed in the Command Window by using the t

Command window, Command Window: To the left of the Command Window, the...

Command Window: To the left of the Command Window, there are 2 tabs for the Current Directory Window and Workspace Window. If the Current Directory tab is selected, the files

Functions, Need help with creating functions in matlab.

Need help with creating functions in matlab.

Simulte the operation of the system, People arrive at a microscope exhibit ...

People arrive at a microscope exhibit at a rate of one every 8+/- 2 minutes. Only one person can see the exhibit at a time. It takes 5 +/- 2 minutes to see the exhibit. A person

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd