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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /2183/CH8/EX8.12 | |
| 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 '2183/CH8/EX8.12')
| -rwxr-xr-x | 2183/CH8/EX8.12/Ex_8_12.sce | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/2183/CH8/EX8.12/Ex_8_12.sce b/2183/CH8/EX8.12/Ex_8_12.sce new file mode 100755 index 000000000..678050bd8 --- /dev/null +++ b/2183/CH8/EX8.12/Ex_8_12.sce @@ -0,0 +1,24 @@ +// Example 8.12 //optical power +clc; +clear; +close; +e=1.6*10^-19;//electron charge +sndb=55;//signal to noise ration in dB +sn=(10^(sndb/10));// +bw=5;//Mhz +r=0.5;//responsivity +cs=0.7;//signal attenuation +k=1.38*10^-23;//bolzman constant +tc=20;//degree celsius +tk=tc+273;//Kelvin +fdb=1.5;// +f=10^(fdb/10);// +rl=1;//mega ohms +x=((sn*4*k*tk*bw*10^6*f)/(rl*10^6));// +y=((2*sn*e*bw*10^6*r));// +ma=9/8;// +z=(2*ma*r^2*cs^2);// +s=poly(0,"s");// +p=-x-y*s+z*s^2;// +m=roots(p);// +disp(m(1,1)*10^6,"average incident power in micro Watts is") |