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Diffstat (limited to '2459/CH19/EX19.9/Ex19_9.sce')
| -rw-r--r-- | 2459/CH19/EX19.9/Ex19_9.sce | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/2459/CH19/EX19.9/Ex19_9.sce b/2459/CH19/EX19.9/Ex19_9.sce new file mode 100644 index 000000000..2ec82705a --- /dev/null +++ b/2459/CH19/EX19.9/Ex19_9.sce @@ -0,0 +1,14 @@ +//chapter19
+//example19.9
+//page422
+
+// block diagram is for understanding purpose inly.It is not required to solve the example
+m=1
+eta=0.72
+// carrier is not affected by modulating signal so its power level remains unchanged before and after modulation
+Pc=40 // kW
+Ps=0.5*m^2*Pc
+P_audio=Ps/eta
+
+printf("carrier power after modulation = %.3f kW \n",Pc)
+printf("required audio power = %.3f kW \n",P_audio)
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