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+// Chapter 10 example 1

+//------------------------------------------------------------------------------

+clc;

+clear;

+f       = 10*10^9;          // center freq. in Hz

+f_us    = 60*10^3;          // upsweep freq. in Hz

+f_ds    = 80*10^3;          // down sweep freq. in Hz

+fm      = 100;              // modulation freq. in Hz

+B       = 2*10^6;           // sweep bandwidth in Hz

+c       = 3*10^8;           // vel. of EM waves in m/s

+T       = 5*10^-3;

+

+// Calculations

+fd      = (f_ds - f_us)/2;      

+df      = (f_ds + f_us)/2; 

+R       = (c*T*df)/(2*B);       // range in m

+// fd   = (2*Vr*f)/c

+Vr      = (c*fd)/(2*f);         // target radial velocity

+Vr_kmph = Vr*(18/5);            // target radial velocity in kmph

+Vr_nmph = Vr_kmph/1.85;         // target radial velocity in Nautical miles per hour

+

+// Output

+mprintf('Target Range = %3.2f Km\n Radial velocity = %3.1f Nmi/hr',R/1000,Vr_nmph);

+//-----------------------------------------------------------------------------