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+//Chapter-11 example 43
+//=============================================================================
+clc;
+clear;
+//Given data
+Vr         = 100;       // speed of car in kmph
+f          = 10*10^9;   // Radar operating frequency
+Vo         = 3*10^8;    // vel. of EM wave
+
+//Calculations
+
+Vr1        = Vr*(5/18); // kmph to m/s conversion
+fd         = (2*Vr1*f)/Vo; // Doppler shift in Hz
+
+//Output
+mprintf('Doppler shift = %3.2f Khz',fd/1000);
+
+//==============================================================================