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C Programming and Data Structures (CPDS) Notes,Textbook and Lab Manual Download
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CPDS1-8UNITS.docx
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ElectroMagnetic theory and Transmission Lines (EMTL) Notes and Textbook Download
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Pulse and Digital Circuits (PDC) Notes and Textbook Download
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In digital circuits, pulses can make the voltage either more positive or more negative. Usually, the more positive voltage is called the high state and the more negative voltage is called the low state. The length of time between the rise and the decay of a single pulse is called the pulse duration or pulse width.
switching theory and logic design (STLD) Notes and Textbook Download
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Switching theory and logic design provides mathematical foundations and tools for digital system design that is an essential part in the research and development in almost all areas of modern technology.
Determination of Psd with Wave Forms
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clc;
clear all;
close all;
N=1024;
fs=8000;
f1=input('enter the 1st freuency');
f2=input('enter the 2nd freuency');
f3=input('enter the 3rd freuency');
n=0:N-1;
x=sin(2*pi*(f1/fs)*n)+sin(2*pi*(f2/fs)*n)+sin(2*pi*(f3/fs)*n);
figure(1)
pxx=spectrum(x,N)
specplot(pxx,fs);
grid ON;
xlabel('freq hz');
ylabel('mag in db');
title('power spectrum of x(n)');
clear all;
close all;
N=1024;
fs=8000;
f1=input('enter the 1st freuency');
f2=input('enter the 2nd freuency');
f3=input('enter the 3rd freuency');
n=0:N-1;
x=sin(2*pi*(f1/fs)*n)+sin(2*pi*(f2/fs)*n)+sin(2*pi*(f3/fs)*n);
figure(1)
pxx=spectrum(x,N)
specplot(pxx,fs);
grid ON;
xlabel('freq hz');
ylabel('mag in db');
title('power spectrum of x(n)');