Matlab function to find and plot the dft, MATLAB Programming

Assignment Help:

It is desired to determine the DFT of the analogue signal x (t) = 25 cos(10 Πt)cos(400Πt).

(a) Find the Nyquist rate of the signal.  

(b) What is the record (signal) length if the desired frequency resolution is 5Hz?

(c)  If the Nyquist rate from part (a) and the record length found in part (b) are used, find the number of points that will be contained in the DFT. 

(d) Use the MATLAB function fft to find and plot the DFT X (k). Add the frequency scale (in hertz) to the diagram.

(e)  If the sampling frequency is doubled, How is X (k) changed?


Related Discussions:- Matlab function to find and plot the dft

Function program, write a function program to compute a standard deviation ...

write a function program to compute a standard deviation of a number

Find the total per phase inductance and per phase shunt, A 300 km, 3-phase,...

A 300 km, 3-phase, 50Hz transmission line has spacing as shown in Figure 2. Each phase of the line consists of a bundle of three conductors.  (a) Find the total per-phase induct

Simplex method, wite a function that will take In a simplex an an associate...

wite a function that will take In a simplex an an associated and return the nitial feasible solution of the tableau x as a column vector as well as the objective the objective fun

If-else statement, The IF-ELSE Statement: The if statement selects whe...

The IF-ELSE Statement: The if statement selects whether an action is executed or not. Selecting between the two actions, or selecting from numerous actions, is accomplished by

Write a for loop to perform elementary row operations, Use Matlab to solve ...

Use Matlab to solve the following set of linear equations by Gaussian Elimination. Write a for loop to perform elementary row operations on the augmented matrix to produce

#title.s.tudent, AApproximate the number to the hundredth, ten-thousandths,...

AApproximate the number to the hundredth, ten-thousandths, and one-hundredmillionth.sk question #Minimum 100 words accepted#

Determine the ball temperature , In the manufacturing of ball bearings, the...

In the manufacturing of ball bearings, the components, such as the ball, are hardened through a process of heating and then rapid cooling or "quenching" by submersion in an oil or

Plot the input and the output of the filter on a single plot, An FIR filter...

An FIR filter has coefficients b = [ 1.0000   -0.6387    1.0214    0.8210   -0.7470    1.0920 ] (a) Find H(z) for the filter and plot its frequency response (magnitude and phase

Solving 1st order differential equations, Hi, I need help with solving five...

Hi, I need help with solving five-1st order ODE which are coupled. I need to plot these as well. Could I please get a quote. Thanks

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