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Title: tutorial
Description: this tutorial gives the idea of a two ray propogation model
Description: this tutorial gives the idea of a two ray propogation model
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Tutorial 11
Aim: Program to implement Two Ray Propagation Model
Software: Matlab R2010b
Theory:
A single line-of-sight path between two mobile nodes is seldom the only means of propagation
...
It is shown that this model gives more accurate prediction at a long distance than the free space
model
...
L is the system loss assumed to be ‘1’ and ht and hr are the heights of
the transmitter and receiver antennas respectively
...
However, the two-ray model does not give a good result for a short
distance due to the oscillation caused by the constructive and destructive combination of the two
rays
...
Program% Modelling of Two-ray ground reflection model
clear all;
clc;
fc=800*10^6;
c_light=3*10^8;
lamda=c_light/fc
Gt=1;
Gr=1;
Pt=1;
L=1;
ht=30;
hr=2;
d_tx_rx_km=1:10
d_tx_rx_m= d_tx_rx_km*10^3
PRG = Pt*Gt*Gr*ht^2*hr^2*(1
...
^4;
PRGD=10*log10(PRG);
disp(PRGD)
figure;
plot(d_tx_rx_km,PRGD,'-o')
xlabel('Distance between transmitter and receiver');
ylabel('Received Power(dB)');
title('Modelling of two-ray ground reflection model');
h = legend('two-ray Model',2);
PRF= Pt*Gt*Gr*(lamda/(4*pi))^2*(1/L)*(1
...
^2;
PRFD=10*log10(PRF);
figure;
plot(d_tx_rx_km,PRFD,'-v',d_tx_rx_km,PRGD,'-o')
xlabel('Distance between transmitter and receiver');
ylabel('Received Power(dB)');
title('Modelling of two-ray ground reflection model');
h = legend('Free Space Model','two-ray Model',2);
Conclusion: The Two Ray Propagation model for has been implemented and studied using MAT LAB
Title: tutorial
Description: this tutorial gives the idea of a two ray propogation model
Description: this tutorial gives the idea of a two ray propogation model