2-D DFT of two dimensional finite extent sequences.

2-D DFT and Convolution
The DFT can be computed with a fast algorithm and it is sometimes beneficial to do the convolution of two sequences A (M1 N1) and B (M2 N2) via point DFTs. Speed improvements are only possible if both sequences have large dimensions. Otherwise convolutions are better implemented via the convolution sum.

2-D Low-Pass Filtering of Images We will be interested in two ways of implementin ....etc

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A New Low Power Test Pattern Generator Using a Variable-Length Ring Counter



1. Introduction
Built-in Self-Test (BIST) is a design-for-test (DFT)
technique in which testing is achieved through built-in
hardware features. The steps in a typical BIST approach are:
(1) on-chip test pattern generation; (2) application of
patterns to the circuit under test (CUT); (3) analysis of CUT
responses via on-chip output response analyzer (ORA) and
(4) making decision whether chip is faulty ....etc

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hi
you can refer these page to get the details on variable length intake manifold

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To get full information or details of linear convolution of two sequences please have a look on the pages

http://seminarsprojects.net/Thread-circular-convolution-of-two-finite-length-sequences-using-dft-and-idft

http://seminarsprojects.net/Thread-circular-convolution-of-two-sequences

if you again feel trouble on linear convolution of two sequences please reply in that page and ask specific fields in linear convolution of two sequences ....etc

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In internal combustion engines, variable length intake manifold (VLIM), or variable intake manifold (VIM) is an automobile internal combustion engine manifold technology. As the name implies, VLIM/VIM can vary the length of the intake tract in order to optimise power and torque, as well as provide better fuel efficiency.

Lower intake manifold on a 1999 Mazda Miata engine, showing components of a variable length intake system.

There are two main effects of variable intake geometry:
Swirl - Variable geometry can create a beneficial air sw ....etc

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verilog code for circular convolution

MATLAB CODE:-
clc
close all
clear all
x=input('Enter the sequence x:');
h=input('Enter the sequence h:');
subplot(3,1,1);
stem(x);
xlabel('-->n');
ylabel('Amp');
legend('Input Sequence');

subplot(3,1,2);
stem(h);
xlabel('-->');
ylabel('Amp');
legend('Impulse Responce');

lx=length(x);
lh=length(h);
l=max(lx,lh);
x=;
h=;
H=zeros(l,l);
H(1:lh,1)=h;
for j=1:l-1
for i=1:l-1
H(i+1,j+1)=H(i,j);
end
H(1,j+1)=H(l,j);
end
y=H*x';
subplot(3,1,3);
stem(y);
title('Circular C ....etc

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To get full information or details of circular convolution using vedic mathematics please have a look on the pages

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to get information about the topic circular convolution of different length sequences full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-circular-convolution-of-two-finite-length-sequences-using-dft-and-idft

http://seminarsprojects.net/Thread-circular-convolution-of-two-sequences ....etc

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write a c program for calculating linear convolution using circular convolution ....etc

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