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Diffstat (limited to '3542/CH8/EX8.2/Ex8_2.sce')
| -rw-r--r-- | 3542/CH8/EX8.2/Ex8_2.sce | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/3542/CH8/EX8.2/Ex8_2.sce b/3542/CH8/EX8.2/Ex8_2.sce new file mode 100644 index 000000000..2a1ccd39d --- /dev/null +++ b/3542/CH8/EX8.2/Ex8_2.sce @@ -0,0 +1,29 @@ +// Example no 8.2
+// To compute transmission bit rate, average and peak signal to quantization noise ratio
+// Page no. 424
+
+clc;
+clear all;
+
+// Given data
+fs=8*10^3; // Sampling frequency in Hz
+n=8; // Number of bits per sample
+stepsize=10*10^-3; // Time after which step size is recomputed
+overhead=5; // Number of overhead bits
+
+N=fs*n; // Number of information bits pe second
+Toverhead=overhead/stepsize; // The number of overhead bits/second
+
+// Effective transmission bit rate
+bitrate=N+Toverhead; // Transmission bit rate in bps
+
+// Peak signal to quantization noise ratio
+PSQNR=6.02*n+4.77; // Peak signal to quantization noise ratio in dB
+
+// Average signal to quantization noise ratio
+ASQNR=6.02*n; // Average signal to quantization noise ratio in dB
+
+// Displaying the result in command window
+printf('\n Effective transmission bit rate = %0.1f kbps',bitrate*10^-3);
+printf('\n Peak signal to quantization noise ratio = %0.2f dB',PSQNR);
+printf('\n Average signal to quantization noise ratio = %0.2f dB',ASQNR);
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