diff options
| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /2825/CH15/EX15.5 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '2825/CH15/EX15.5')
| -rwxr-xr-x | 2825/CH15/EX15.5/Ex15_5.sce | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/2825/CH15/EX15.5/Ex15_5.sce b/2825/CH15/EX15.5/Ex15_5.sce new file mode 100755 index 000000000..7f5b43b61 --- /dev/null +++ b/2825/CH15/EX15.5/Ex15_5.sce @@ -0,0 +1,29 @@ +//Ex15_5 Pg-775
+clc
+
+disp("The standard equation of AM wave is")
+disp(" e = Ec*(1+m*sin(omega_m*t)*sin(omega_c*t)) -->eqn 1")
+disp("Given the equation")
+disp(" e = 20*(1+0.7*sin(6280*t)*sin(628000*t)) --eqn 2")
+disp("Comparing eqn 1 and eqn 2 one obtains")
+disp("(1) Modulation factor, m = 0.7")
+m=0.7 //modulation factor
+disp("(2) Carrier Amplitude, Ec = 20 V")
+Ec=20 //carrier wave amplitude in V
+disp("(3) omega_m = 6280")
+omega_m=6280 //modulating frequency
+Fm=omega_m/(2*%pi) //signal frequency
+printf(" Signal frequency = %.0f kHz \n\n",Fm*1e-3)
+
+omega_c=628000 //carrier frequency in Hz
+Fc=omega_c/(2*%pi)
+printf("(4) Signal frequency = %.0f kHz \n\n",Fc*1e-3)
+
+Emax=Ec+m*Ec //minimum amplitude of wave
+printf("(5) Emax = %.0f V \n\n",Emax)
+
+Emin=Ec-m*Ec //minimum amplitude of wave
+printf("(5) Emin = %.0f V\n\n",Emin)
+
+BW=2*Fm //Bandwidth
+printf("(6) BW = %.0f kHZ",BW*1e-3)
|