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//Chapter-11 example 63
//=============================================================================
clc;
clear;
//Given data
Vr = 300; // Velocity of radar in m/s
Vair = 200; // velocty of aircraft in m/s
f = 10*10^9; // Radar operating frequency
Vo = 3*10^8; //vel of Em wave in m/s;
//Calculations
lamda = Vo/f; // wavelength in m
Vrel = Vr+Vair; //relative radial vel. b/w radar and aircraft when approaching each other
fd = (2*Vrel)/lamda// Doppler frequency
//Output
mprintf('Doppler frequency = %3.2f KHz',fd/1000);
//==============================================================================
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