initial commit / add all books

31 files changed, 245 insertions, 0 deletions

diff --git a/162/CH1/EX1.1/example11.jpg b/162/CH1/EX1.1/example11.jpg
new file mode 100755
index 000000000..83f8f1fae
--- /dev/null
+++ b/162/CH1/EX1.1/example11.jpg
diff --git a/162/CH1/EX1.1/example11.sce b/162/CH1/EX1.1/example11.sce
new file mode 100755
index 000000000..e65433179
--- /dev/null
+++ b/162/CH1/EX1.1/example11.sce
@@ -0,0 +1,28 @@
+//Example1.1

+clc;

+t=0:0.01:9;

+A=0:4/900:4;

+for i=1:length(t)

+    if t(i)<3 then

+        x(i)=A(i)*t(i);

+    else

+        x(i)=0

+    end

+end

+t1=t+3;

+subplot(2,2,1)

+plot(t1,x);

+xtitle('x(t-3)');

+subplot(2,2,2)

+plot(4*t,x);

+xtitle('x(t/4)');

+subplot(2,2,3)

+plot(t/3,x);

+xtitle('x(3t)');

+subplot(2,2,4)

+t2=-9:0.01:0

+plot(t2,x($:-1:1));

+xtitle('x(-t)');

+figure

+plot(t,x);

+xtitle('x(t)');
\ No newline at end of file
diff --git a/162/CH1/EX1.1/example11_a.jpg b/162/CH1/EX1.1/example11_a.jpg
new file mode 100755
index 000000000..48f185518
--- /dev/null
+++ b/162/CH1/EX1.1/example11_a.jpg
diff --git a/162/CH1/EX1.11.b/example111b.sce b/162/CH1/EX1.11.b/example111b.sce
new file mode 100755
index 000000000..256d554fe
--- /dev/null
+++ b/162/CH1/EX1.11.b/example111b.sce
@@ -0,0 +1,16 @@
+//Example 1.11b

+//Determine whether the following signal is time invariant or not

+clc;

+n0=2;

+N=10;

+for n=1:N

+    x(n)=n; 

+    y(n)=n*x(n);

+end

+inputshift=x(N-n0);

+outputshift=y(N-n0);

+if(inputshift==outputshift)

+    disp('THE GIVEN SYSTEM IS TIME INVARIANT')

+else

+    disp('THE GIVEN SYSTEM IS TIME VARIANT');

+end
\ No newline at end of file
diff --git a/162/CH1/EX1.12.b/example112b.sce b/162/CH1/EX1.12.b/example112b.sce
new file mode 100755
index 000000000..263477ffb
--- /dev/null
+++ b/162/CH1/EX1.12.b/example112b.sce
@@ -0,0 +1,31 @@
+//Example 1.12b

+//Determine whether the system is linear or not

+clc;

+x1=[1,1,1,1]

+x2=[2,2,2,2]

+a=1

+b=1

+for n=1:length(x1)

+    x3(n)=a*x1(n)+b*x2(n)

+end

+for n=1:length(x1)

+    y1(n)=x1(n)^2

+    y2(n)=x2(n)^2

+    y3(n)=x3(n)^2

+end

+for n=1:length(y1)

+    z(n)=a*y1(n)+b*y2(n)

+end

+count=0

+for n=1:length(y1)

+    if(y3(n)==z(n))

+        count=count+1;

+     end   

+end

+if(count==length(y3))

+disp('It satisfy the superposition principle');

+disp('THE GIVEN SYSTEM IS LINEAR ');

+else

+    disp('It does not satisfy superposition principle ');

+    disp('THE GIVEN SYSTEM IS NON LINEAR');

+end
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diff --git a/162/CH1/EX1.15.a/example115_a.jpg b/162/CH1/EX1.15.a/example115_a.jpg
new file mode 100755
index 000000000..72551e96c
--- /dev/null
+++ b/162/CH1/EX1.15.a/example115_a.jpg
diff --git a/162/CH1/EX1.15.a/example115a.sce b/162/CH1/EX1.15.a/example115a.sce
new file mode 100755
index 000000000..8583bfa75
--- /dev/null
+++ b/162/CH1/EX1.15.a/example115a.sce
@@ -0,0 +1,7 @@
+//Example 1.15a

+//Check whether the given signal is periodic or not

+clc;

+t=-10:0.01:10;

+y=cos(t+(%pi/3));

+plot(t,y);

+disp('Plot shows that the given signal is periodic with period 2*%pi');
\ No newline at end of file
diff --git a/162/CH1/EX1.15.b/example115_b.jpg b/162/CH1/EX1.15.b/example115_b.jpg
new file mode 100755
index 000000000..b5691b969
--- /dev/null
+++ b/162/CH1/EX1.15.b/example115_b.jpg
diff --git a/162/CH1/EX1.15.b/example115b.sce b/162/CH1/EX1.15.b/example115b.sce
new file mode 100755
index 000000000..f549aadd9
--- /dev/null
+++ b/162/CH1/EX1.15.b/example115b.sce
@@ -0,0 +1,7 @@
+//Example 1.15b

+//Check whether the given signal is periodic or not

+clc;

+t=-10:0.01:10;

+y=sin((2*%pi/5)*t);

+plot(t,y);

+disp('Plot shows that the given signal is periodic with period 5');
\ No newline at end of file
diff --git a/162/CH1/EX1.15.c/example115_c.jpg b/162/CH1/EX1.15.c/example115_c.jpg
new file mode 100755
index 000000000..7af3f2efa
--- /dev/null
+++ b/162/CH1/EX1.15.c/example115_c.jpg
diff --git a/162/CH1/EX1.15.c/example115c.sce b/162/CH1/EX1.15.c/example115c.sce
new file mode 100755
index 000000000..f89b8b365
--- /dev/null
+++ b/162/CH1/EX1.15.c/example115c.sce
@@ -0,0 +1,7 @@
+//Example 1.15c

+//Check whether the given signal is periodic or not

+clc;

+t=-20:0.01:20;

+y=sin((%pi/2)*t)+cos((%pi/4)*t);

+plot(t,y);

+disp('Plot shows that the given signal is periodic with period 40');
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diff --git a/162/CH1/EX1.15.d/example115_d.jpg b/162/CH1/EX1.15.d/example115_d.jpg
new file mode 100755
index 000000000..83f0079a0
--- /dev/null
+++ b/162/CH1/EX1.15.d/example115_d.jpg
diff --git a/162/CH1/EX1.15.d/example115d.sce b/162/CH1/EX1.15.d/example115d.sce
new file mode 100755
index 000000000..7ac2943d3
--- /dev/null
+++ b/162/CH1/EX1.15.d/example115d.sce
@@ -0,0 +1,7 @@
+//Example 1.15d

+//Check whether the given signal is periodic or not

+clc;

+t=-10:0.01:10;

+y=(cos(t))^2;

+plot(t,y);

+disp('Plot shows that the given signal is periodic with period %pi');
\ No newline at end of file
diff --git a/162/CH1/EX1.15.e/example115_e.jpg b/162/CH1/EX1.15.e/example115_e.jpg
new file mode 100755
index 000000000..e18ad790e
--- /dev/null
+++ b/162/CH1/EX1.15.e/example115_e.jpg
diff --git a/162/CH1/EX1.15.e/example115e.sce b/162/CH1/EX1.15.e/example115e.sce
new file mode 100755
index 000000000..227f6fc2e
--- /dev/null
+++ b/162/CH1/EX1.15.e/example115e.sce
@@ -0,0 +1,7 @@
+//Example 1.15e

+//Check whether the given signal is periodic or not

+clc;

+t=-20:0.01:20;

+y=sin(t)+cos(sqrt(3)*t);

+plot(t,y);

+disp('Plot shows that the given signal is NOT periodic');
\ No newline at end of file
diff --git a/162/CH1/EX1.19.a/example119a.sce b/162/CH1/EX1.19.a/example119a.sce
new file mode 100755
index 000000000..18189d5f9
--- /dev/null
+++ b/162/CH1/EX1.19.a/example119a.sce
@@ -0,0 +1,7 @@
+//Example 1.19a

+//Check whether the given signal is periodic or not

+clc;

+n=-50:50;

+y=sin(n/5);

+plot2d3(n,y);

+disp('Plot shows that the given signal is periodic');
\ No newline at end of file
diff --git a/162/CH1/EX1.19.b/example119b.sce b/162/CH1/EX1.19.b/example119b.sce
new file mode 100755
index 000000000..7a534f0d7
--- /dev/null
+++ b/162/CH1/EX1.19.b/example119b.sce
@@ -0,0 +1,7 @@
+//Example 1.19b

+//Check whether the given signal is periodic or not

+clc;

+n=-20:20;

+x=exp(%i*(%pi/5)*n);

+plot2d3(n,x);

+disp('Plot shows that the given signal is periodic');
\ No newline at end of file
diff --git a/162/CH1/EX1.19.c/example119c.sce b/162/CH1/EX1.19.c/example119c.sce
new file mode 100755
index 000000000..cc5fa5a18
--- /dev/null
+++ b/162/CH1/EX1.19.c/example119c.sce
@@ -0,0 +1,7 @@
+//Example 1.19c

+//Check whether the given signal is periodic or not

+clc;

+n=-75:75;

+x=cos((%pi/5)*n)+sin((%pi/6)*n);

+plot2d3(n,x);

+disp('Plot shows that the given signal is periodic');
\ No newline at end of file
diff --git a/162/CH1/EX1.3.a/example13a.sce b/162/CH1/EX1.3.a/example13a.sce
new file mode 100755
index 000000000..ce46235f0
--- /dev/null
+++ b/162/CH1/EX1.3.a/example13a.sce
@@ -0,0 +1,10 @@
+//Example 1.3a

+//Find whether the the given signal is energy or power signal

+clc;

+A=0.5;

+phi=0;

+t=0:0.001:10;

+y=A*sin(2*%pi*t+phi);

+P=(integrate('A^2*(sin(2*%pi*t))^2','t',0,2*%pi))/(2*%pi);

+disp(P,'Power of the signal is');

+disp('Since the power of the given signal is finite so we can say that this signal is a power signal');
\ No newline at end of file
diff --git a/162/CH1/EX1.3.b/example13b.sce b/162/CH1/EX1.3.b/example13b.sce
new file mode 100755
index 000000000..8318edd98
--- /dev/null
+++ b/162/CH1/EX1.3.b/example13b.sce
@@ -0,0 +1,9 @@
+//Example 1.3b

+//Find whether the the given signal is energy or power signal

+clc;

+b=0.5;

+t=0:0.001:10;

+y=exp(-b*t);

+E=integrate('(exp(-b*t))^2','t',0,2*%pi);

+disp(E,'Energy of the signal is');

+disp('Since the energy of the given signal is finite so we can say that this signal is an energy signal');
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diff --git a/162/CH1/EX1.4/example14.jpg b/162/CH1/EX1.4/example14.jpg
new file mode 100755
index 000000000..e412c159e
--- /dev/null
+++ b/162/CH1/EX1.4/example14.jpg
diff --git a/162/CH1/EX1.4/example14.sce b/162/CH1/EX1.4/example14.sce
new file mode 100755
index 000000000..0ec75bb5d
--- /dev/null
+++ b/162/CH1/EX1.4/example14.sce
@@ -0,0 +1,23 @@
+//Example 1.4

+//Time Shifting And Scaling

+clc;

+n=-2:8;

+x=[0,0,0,1,2,3,4,4,0,0,0];

+n1=n+3;

+subplot(2,2,1);

+plot2d3(n1,x);

+xtitle('x[n-3]');

+subplot(2,2,2);

+plot2d3(ceil(n/3),x);

+xtitle('x[3n]');

+subplot(2,2,3);

+n2=-8:2;

+plot2d3(n2,x($:-1:1));

+xtitle('x[-n]');

+subplot(2,2,4)

+n3=n2+3;

+plot2d3(n3,x($:-1:1));

+xtitle('x[-n+3]');

+figure

+plot2d3(n,x);

+xtitle('x[n]');
\ No newline at end of file
diff --git a/162/CH1/EX1.4/example14_a.jpg b/162/CH1/EX1.4/example14_a.jpg
new file mode 100755
index 000000000..a7e6c7ea0
--- /dev/null
+++ b/162/CH1/EX1.4/example14_a.jpg
diff --git a/162/CH1/EX1.5/example15.sce b/162/CH1/EX1.5/example15.sce
new file mode 100755
index 000000000..cdc56454d
--- /dev/null
+++ b/162/CH1/EX1.5/example15.sce
@@ -0,0 +1,9 @@
+//Example 1.5

+clc;

+n=-1:5;

+x1=[0,0,1,2,-3,0,-2];

+x2=[2,1,-1,3,2,0,0];

+y1=x1+x2;

+disp(y1,'y1[n]=');

+y2=x1.*x2;

+disp(y2,'y2[n]=');
\ No newline at end of file
diff --git a/162/CH1/EX1.6/example16.jpg b/162/CH1/EX1.6/example16.jpg
new file mode 100755
index 000000000..dbd581ee5
--- /dev/null
+++ b/162/CH1/EX1.6/example16.jpg
diff --git a/162/CH1/EX1.6/example16.sce b/162/CH1/EX1.6/example16.sce
new file mode 100755
index 000000000..628ab4e69
--- /dev/null
+++ b/162/CH1/EX1.6/example16.sce
@@ -0,0 +1,12 @@
+//Example 1.6

+clc;

+n1=-4:-1;

+for i=1:length(n1)

+    x(i)=1+(n1(i)/4);

+end

+for j=5:9

+    x(j)=1;

+end

+n=-4:4;

+plot2d3(n,x);

+xtitle('x[n]');
\ No newline at end of file
diff --git a/162/CH1/EX1.8.a/example18_a.jpg b/162/CH1/EX1.8.a/example18_a.jpg
new file mode 100755
index 000000000..6da5017cc
--- /dev/null
+++ b/162/CH1/EX1.8.a/example18_a.jpg
diff --git a/162/CH1/EX1.8.a/example18a.sce b/162/CH1/EX1.8.a/example18a.sce
new file mode 100755
index 000000000..b57719385
--- /dev/null
+++ b/162/CH1/EX1.8.a/example18a.sce
@@ -0,0 +1,9 @@
+//Example 1.8a

+//Check whether the given signal is periodic or not

+clc;

+n=-20:20;

+x=cos(0.1*%pi*n);

+plot2d3(n,x);

+f=0.1*%pi/(2*%pi);//f is no. of cycles per sample

+N=1/f;//N is no. of samples per cycle

+disp('samples',N,'Figure shows that the signal is periodic with period equal to');
\ No newline at end of file
diff --git a/162/CH1/EX1.9.a/example19a.sce b/162/CH1/EX1.9.a/example19a.sce
new file mode 100755
index 000000000..993a2fb66
--- /dev/null
+++ b/162/CH1/EX1.9.a/example19a.sce
@@ -0,0 +1,14 @@
+//Example 1.9a

+clc;

+E=0;

+for n=0:100

+    x(n+1)=(-0.3)^n;

+end

+for n=0:100

+    E=E+x(n+1)^2;

+end

+if E<%inf then

+    disp(E,'The given signal is energy signal with energy=');

+else

+    disp('The given signal is not energy signal');

+end
\ No newline at end of file
diff --git a/162/CH1/EX1.9.b/example19b.sce b/162/CH1/EX1.9.b/example19b.sce
new file mode 100755
index 000000000..781010f1f
--- /dev/null
+++ b/162/CH1/EX1.9.b/example19b.sce
@@ -0,0 +1,14 @@
+//Example 1.9b

+clc;

+for n=0:100

+    x(n+1)=2;

+end

+P=0;

+for n=0:100

+    P=P+(abs(x(n+1)^2))/100;

+end

+if P<%inf then

+    disp(P,'The given signal is power signal with power =');

+else

+    disp('The given signal is not power signal');

+end
\ No newline at end of file
diff --git a/162/CH1/EX1.9.c/example19c.sce b/162/CH1/EX1.9.c/example19c.sce
new file mode 100755
index 000000000..e3860395d
--- /dev/null
+++ b/162/CH1/EX1.9.c/example19c.sce
@@ -0,0 +1,14 @@
+//Example 1.9c

+clc;

+for n=1:100

+    x(n)=3*exp(%i*2*n);

+end

+P=0;

+for n=1:100

+    P=P+(abs(x(n)^2))/100;

+end

+if P<%inf then

+    disp(P,'The given signal is power signal with power =');

+else

+    disp('The given signal is not power signal');

+end
\ No newline at end of file