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//Chapter-11 example 1
//=============================================================================
clc;
clear;
//Given data
F = 10*10^9; //radar operating frequency in Hz
Vo = 3*10^8; //vel in m/s;
G = 20; //antenna gain in dBi;
R = 20*10^3; //distance of radar reflected signal from target
Pt = 10*10^3 //Tx power in watts
CS = 10; //cross sectional area in m^2
// Calculations
Gain = 10^(G/10) //G = 10log(Gain) ==>gain - antilog(20/10);
Gr = Gain; //gain of tx antenna and Rx antenna
Gt = Gain
lamda = Vo/F
Pr= (lamda*lamda*Pt*Gt*Gr*CS)/((4*4*4*%pi*%pi*%pi)*(R^4))//received power in watts
// Output
mprintf('Received signal Power is %g',Pr);
mprintf('\n Note : Calculation error in Textbook');
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