1 files changed, 50 insertions, 44 deletions

diff --git a/1592/CH6/EX6.2/Example_6_2.sce b/1592/CH6/EX6.2/Example_6_2.sce
index 2b43c42a8..671d6d061 100755
--- a/1592/CH6/EX6.2/Example_6_2.sce
+++ b/1592/CH6/EX6.2/Example_6_2.sce
@@ -1,44 +1,50 @@
-//Scilab Code for Example 6.2 of Signals and systems by

-//P.Ramakrishna Rao

-//Sampling of signal and aliasing due to low Sampling frequency

-clc;

-clear f n X X_delta X_delta1 X_delta2 X_delta3 w;

-fs=100;

-for f=-200:200

-    X(f+201)=5*[delta(f-75)+delta(f+75)];

-end

-figure(1);

-f=-200:200;

-plot2d3(f,X,-2);

-title('X(f)');

-xlabel('--->  f');

-w=1;

-n=-2;

-    for f=-175:175

-    X_delta1(f+176)=fs*5*[delta(f-n*fs-75)+delta(f-n*fs+75)];

-    end

-n=n+1;

-    for f=-175:175

-    X_delta2(f+176)=fs*5*[delta(f-n*fs-75)+delta(f-n*fs+75)];

-end

-n=n+1;

-    for f=-175:175

-    X_delta3(f+176)=fs*5*[delta(f-n*fs-75)+delta(f-n*fs+75)];

-end

-n=n+1;

-    for f=-175:175

-    X_delta4(f+176)=fs*5*[delta(f-n*fs-75)+delta(f-n*fs+75)];

-end

-n=n+1;

-    for f=-175:175

-    X_delta5(f+176)=fs*5*[delta(f-n*fs-75)+delta(f-n*fs+75)];

-end

-X_delta=X_delta1+X_delta2+X_delta3+X_delta4+X_delta5;

-figure(2);

-f=-175:175;

-

-plot2d3(f,X_delta,-2);

-title('X_delta(f) at fs=100');

-xlabel('--->  f');

-//The Presence of the 25 HZ component in the spectrum of x_delta(t)

-//Due to effect of Aliasing

+//Scilab Code for Example 6.2 of Signals and systems by
+//P.Ramakrishna Rao
+//Sampling of signal and aliasing due to low Sampling frequency
+clc;
+clear 
+function [y]=delta(t)
+    if t==0
+    y=1
+else y=0
+    end
+endfunction
+fs=100;
+for f=-200:200
+    X(f+201)=5*[delta(f-75)+delta(f+75)];
+end
+figure(1);
+f=-200:200;
+plot2d3(f,X,-2);
+title('X(f)');
+xlabel('--->  f');
+w=1;
+n=-2;
+    for f=-175:175
+    X_delta1(f+176)=fs*5*[delta(f-n*fs-75)+delta(f-n*fs+75)];
+    end
+n=n+1;
+    for f=-175:175
+    X_delta2(f+176)=fs*5*[delta(f-n*fs-75)+delta(f-n*fs+75)];
+end
+n=n+1;
+    for f=-175:175
+    X_delta3(f+176)=fs*5*[delta(f-n*fs-75)+delta(f-n*fs+75)];
+end
+n=n+1;
+    for f=-175:175
+    X_delta4(f+176)=fs*5*[delta(f-n*fs-75)+delta(f-n*fs+75)];
+end
+n=n+1;
+    for f=-175:175
+    X_delta5(f+176)=fs*5*[delta(f-n*fs-75)+delta(f-n*fs+75)];
+end
+X_delta=X_delta1+X_delta2+X_delta3+X_delta4+X_delta5;
+figure(2);
+f=-175:175;
+
+plot2d3(f,X_delta,-2);
+title('X_delta(f) at fs=100');
+xlabel('--->  f');
+//The Presence of the 25 HZ component in the spectrum of x_delta(t)
+//Due to effect of Aliasing
\ No newline at end of file