Matlab function to find and plot the dft, MATLAB Programming

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?

Posted Date: 2/21/2013 2:11:50 AM | Location : United States







Related Discussions:- Matlab function to find and plot the dft, Assignment Help, Ask Question on Matlab function to find and plot the dft, Get Answer, Expert's Help, Matlab function to find and plot the dft Discussions

Write discussion on Matlab function to find and plot the dft
Your posts are moderated
Related Questions
String Manipulation: The string in MATLAB software consists of any number of characters and is contained in the single quotes. Actually, strings are considered as vectors in w

whats thye procedure for entering say an LP model, maximisation an objective funtion ''10x+3y'' subject to: 40 300x +298y>=299 x+y=1

How to simulate a robot

Write a program that reads in numbers (of type double) from a file, stores them in an array, and then calculates the mean, variance, and standard deviation.   Your program shoul

i want to save the values of a particular equation in a for loop.. for ex: for i=1:100 et=(x+yz); end thus how can i store the values of et at each iteration


how to implement 3 out of 4 visual cryptography in MATLAB?

-The program should run always until the user enters -1 to exit from the program. - In the main, you should ask user to input any angles in degrees (Ad) and an integer number (N).

#create a matlab GUI for designing common emitter amplifier which produces AC load lines based on the component values

Operators: There are in general two types of operators: unary operators that operate on a single value or operand; and binary operators, that operate on two values or operands