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 /752/CH4/EX4.15.1 | |
| 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 '752/CH4/EX4.15.1')
| -rwxr-xr-x | 752/CH4/EX4.15.1/4_15_1.sce | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/752/CH4/EX4.15.1/4_15_1.sce b/752/CH4/EX4.15.1/4_15_1.sce new file mode 100755 index 000000000..03ffeb20f --- /dev/null +++ b/752/CH4/EX4.15.1/4_15_1.sce @@ -0,0 +1,16 @@ +clc;
+// page no 141
+// prob no 4_15_1
+//mixer with noise fig. 20dB preceded by amplifier with noise fig. 9dB is given
+f1=9;//Noise fig for amplifier
+f2=20;//Noise fig for mixer
+g=15;//power gain
+//Converting dB in power ratio
+F1=10^(f1/10);
+F2=10^(f2/10);
+G=10^(g/10);
+//Determination of overall noise fig. reffered at i/p
+F=F1+(F2-1)/G;
+//converting in dB
+FdB=10*log10(F);
+disp('dB',FdB,'The overall noise fig is');
\ No newline at end of file |