Generate two waveforms-analog waveform, MATLAB Programming

Assignment Help:

The purpose of this lab is to introduce students to the basic concept of overtones. In order to generate two tones at the same time, you need to generate two waveforms and add them together using the following equation:

W(t) = A0 + A1 sin(2πf1 t + θ1)  +  A2 sin(2πf2 t + θ2)

Where W is the pulse width at time t, f1and f2 are the angular frequencies of the tones, and theta1 and theta2 are the phases.  The amplitudes A0, A1, A2 must be chosen by you so that the pulse width stays positive and is not greater than the sampling period.

PWM can be used to represent any analog waveform. At a uniform time interval the signal can be sampled and translated into a digital form representing its corresponding analog value. The faster the sampling rate, the smoother the reconstructed analog waveform will be. The sampling rate is expected to be much higher than the highest frequency of the sinusoidal waveform that you will produce, in order to generate a smoother waveform. The Nyquist sampling theory states that the sampling frequency should be at least twice the maximum frequency of the signal.

The PWM signal is simply a square wave with a variable duty cycle. The duty cycle of the square wave is proportional to the sampled value of the analog waveform as illustrated in Figure 2 for a sinusoidal analog waveform. Duty cycle is the fraction of time that a PWM signal is active in one sampling period.

 


Related Discussions:- Generate two waveforms-analog waveform

#numerical Analysis, using newton divided diference formula find f(15) and ...

using newton divided diference formula find f(15) and f (8)

Help me..., construct a matlab program to calculate and to plot the electro...

construct a matlab program to calculate and to plot the electron and hole concentration as a function of the Fermi-level in an energy gab of Si at a Given temperature and the carri

Determine the probability - discrete distributions, The occurrence of bushf...

The occurrence of bushfires in the Port Stephens area may be modelled by a Poisson process. The average occurrences of bushfires n is assumed to be either 15 (event A 1 ), 20 (even

Real time color recognition, Hello my name is lalitkumar and I am a student...

Hello my name is lalitkumar and I am a student.I needed help in MATLAB for recognition of colour randomly using webcam realtime for RGB without external trigger.please mail the co

2 dimensional finite element analysis, i need matlab code on 2 dimensional...

i need matlab code on 2 dimensional analysis of temperature distribution in steel using finite element method

Extraction, i want to extract an image from its background in matlab..the i...

i want to extract an image from its background in matlab..the image is a binary image

Print the day of the week, how to write a program to determine the day of ...

how to write a program to determine the day of the week. using GUI.

Systems modelling and simulation , The purpose of this assignment is to use...

The purpose of this assignment is to use Matlab/Simulink to analyse and simulate a mathematical model of an electromechanical system. This system comprises two component subsystems

Excel, Ask question Excel Ch 1.A-Grader Project-Training Workshops 1.5#Mini...

Ask question Excel Ch 1.A-Grader Project-Training Workshops 1.5#Minimum 100 words accepted#

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