initial commit / add all books

1 files changed, 25 insertions, 0 deletions

diff --git a/3446/CH4/EX4.4/Ex4_4.sce b/3446/CH4/EX4.4/Ex4_4.sce
new file mode 100644
index 000000000..695e08417
--- /dev/null
+++ b/3446/CH4/EX4.4/Ex4_4.sce
@@ -0,0 +1,25 @@
+// Exa 4.4

+// TO calculate:

+// A)The minimum number of bits/sample or bits/PCM word that should be used.

+// B)The minimum sampling rate, and what is the resulting transmission rate.

+// C)The PCM pulse or symbol transmission rate.

+

+clc;

+clear all;

+

+Fm=3000; //highest modulating frequency in signal(Hz)

+M=32; // number of pulse levels 

+b=5; //bits per symbol 

+p=0.01; //Quantization distortion

+

+//solution

+//2^R = L >= 1/2P

+// where R is the number of bits required to represent quantization levels L

+R=log10(1/(2*p))/log10(2);

+Fs=2*Fm;  // Nyquist sampling criteria (samples per second)

+fs=round(R)*Fs;

+Rs=fs/b;

+printf('The minimum number of bits/sample or bits/PCM word that should be used are %d',round(R));

+printf('\n The minimum sampling rate is %d samples per second\n ',Fs);

+printf('The resulting transmission rate is %d bps\n ',fs);

+printf('The PCM pulse or symbol transmission rate is %d symbols/sec\n',Rs);