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+//Chapter-11 example 9
+//=============================================================================
+clc;
+clear;
+//input data
+F  = 6*10^9;//Transmitting Frequency of Radar
+Vr = 250;//velocity of automobile in Kmph
+Vo    = 3*10^8;//velocity of EM wave in m/s
+
+//Calculations
+
+Va    = Vr*(5/18)//velocity of automobile in m/s
+Fd    = (2*Va*F)/Vo//Doppler Frequency shift in Hz
+
+//Output
+mprintf('Doppler Frequency shift is %3.3f KHz',Fd/1000)
+
+//=============end of the program==============================================