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+//Chapter-11 example 8
+//=============================================================================
+clc;
+clear;
+//input data
+Tvel = 1000;//target speed in kmph
+F = 10*10^9;//radar operating frequency in hz
+Vo = 3*10^8;//velocity of EM wave in m/s
+
+//Calculations
+Vr = 1000*(5/18);//target speed in m/s
+Fd = (2*Vr*F)/Vo;//Doppler Frequency shift in Hz
+
+//Output
+mprintf('Doppler Frequency shift Caused by aircraft is %3.2f KHz',Fd/1000);
+
+//=============end of the program==============================================