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| author | priyanka | 2015-06-24 15:03:17 +0530 |
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| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /1895/CH11/EX11.18/EXAMPLE11_18.SCE | |
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initial commit / add all books
Diffstat (limited to '1895/CH11/EX11.18/EXAMPLE11_18.SCE')
| -rwxr-xr-x | 1895/CH11/EX11.18/EXAMPLE11_18.SCE | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/1895/CH11/EX11.18/EXAMPLE11_18.SCE b/1895/CH11/EX11.18/EXAMPLE11_18.SCE new file mode 100755 index 000000000..87f3a47b3 --- /dev/null +++ b/1895/CH11/EX11.18/EXAMPLE11_18.SCE @@ -0,0 +1,27 @@ +//ANALOG AND DIGITAL COMMUNICATION
+//BY Dr.SANJAY SHARMA
+//CHAPTER 11
+//Information Theory
+clear all;
+clc;
+printf("EXAMPLE 11.18(PAGENO 499)");
+//given
+Px_1 = 1/4;//probability of first symbol
+Px_2 = 1/5;//probability of second symbol
+Px_3 = 1/5;//probability of third symbol
+Px_4 = 1/10;//probability of fourth symbol
+Px_5 = 1/10;//probability of fifth symbol
+Px_6 = 1/20;//probability of sixth symbol
+Px_7 = 1/20;//probability of seventh symbol
+Px_8 = 1/20;//probability of eigith symbol
+f_m = 10*10^3//freuency of tranamitting symbol
+
+//calculations
+H_X = Px_1*log2(1/Px_1) + Px_2*log2(1/Px_2) + Px_3*log2(1/Px_3) + Px_4*log2(1/Px_4) + Px_5*log2(1/Px_5) + Px_6*log2(1/Px_6)+ Px_7*log2(1/Px_7)+ Px_8*log2(1/Px_8);//entropy
+f_s = 2*f_m//sampling frequency
+r = f_s//sampling frequency equal to rate of transmission
+R = r*H_X;//information rate
+
+//result
+printf("\n\nRate of information = %.2f bits/sec",R);
+printf("\n\nNote:Their mistake in calculation of H_X in textbook")
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