File:Radar echo signal sequence.pdf

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file (1,166 × 868 pixels, file size: 69 KB, MIME type: application/pdf)

Captions

Captions

Add a one-line explanation of what this file represents
Description
English: Echo signal sequence of a radar signal.
Italiano: Sequenza segnale eco di un segnale radar.
Date
Source Own work
Author Luca Ghio
Permission
(Reusing this file)
Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
gnuplot source
InfoField
click to expand
pkg load signal
close all
#clear all
n=1000;
x=zeros(1,n);
x(1:100)=ones(1,100);
figure
set(gca,'FontSize',14)
stem(x, 'k')
xlabel('n')
title('x(n)')
axis([0 1000 -0.5 1.5])
grid on
D=200;
x_shift=[zeros(1,D) x(1:end-D)];
g=0.05*randn(1,n);
alpha=0.3;
r=alpha*x_shift+g;
z=xcorr(r,x);
figure
set(gca,'FontSize',14)
stem(r,'k')
xlabel('n')
title('r(n)')
axis([0 1000 -0.5 1.5])
grid on
figure
set(gca,'FontSize',14)
stem([-n+1:n-1],z,'k')
xlabel('n')
title('z(n)')
grid on

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current10:10, 30 June 2016Thumbnail for version as of 10:10, 30 June 20161,166 × 868 (69 KB)Luca Ghio (talk | contribs){{Information |Description= {{en|Echo signal sequence <math>r \left( n \right) = \alpha x \left( n - D \right) + g \left( n \right)</math> of a radar signal.}} {{it|Sequenza segnale eco <math>r \left( n \right) = \alpha x \left( n - D \right) + g \left...

You cannot overwrite this file.

File usage on other wikis

The following other wikis use this file:

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Radar_echo_signal_sequence.pdf&oldid=484667941"