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+//Chapter-11 example 37
+//=============================================================================
+clc;
+clear;
+//Given data
+
+Pt        = 500*10^3;   // Peak pulse power in Watts
+pt        = 50;         // peak power transmitted by beacon in watts
+f         = 2500*10^6;  // Radar Operating frequency in Hz
+lamda     = 0.12;       // wavelength in m
+D         = 64;         // antenna diameter in m
+BW        = 5000;       // Radar Bandwidth
+Ab        = 0.51;
+k         =  1.38*10^-23;  // Boltzmann constant
+F         = 20             // Noise figure 
+Fb        = 1.1            // Noise figure of beacon
+To        = 290;           // Temperature in kelvin
+ 
+//Calculations
+
+Ar        = (0.65*%pi*D*D)/4
+Rmax      = sqrt((Ar*Pt*Ab)/(lamda*lamda*k*To*BW*(F-1)));  // Max tracking range of radar
+
+Rmax1      = sqrt((Ar*pt*Ab)/(lamda*lamda*k*To*BW*(Fb-1))); // Max tracking range of radar if Fb = 1.1
+
+//output
+mprintf('Maximum Tracking Range of Radar is %3.3e Km\n Range of beacon if noise figure is 1.1 = %3.3e Km\n ',Rmax/1000,Rmax1/1000);
+mprintf('Note: Calculation mistake in textbook in calculating Range of beacon\n instead of 1.36*10^9 km range is wrongly printed as 136*10^6 km')
+
+//======================end of program==========================================
+
+
+