initial commit / add all books

9 files changed, 164 insertions, 0 deletions

diff --git a/830/CH2/EX2.01.09/Exp_Inc.sce b/830/CH2/EX2.01.09/Exp_Inc.sce
new file mode 100755
index 000000000..93c60d13f
--- /dev/null
+++ b/830/CH2/EX2.01.09/Exp_Inc.sce
@@ -0,0 +1,17 @@
+//Graphical//

+//Implementation of Equation 2.01.09b in Chapter 2

+//Digital Signal Processing by Proakis, Third Edition, PHI

+//Page 46

+// a < 0

+clear;

+clc;

+close;

+a =-1.5;  

+n = 0:10;  

+x = (a)^n;

+a=gca();

+a.thickness = 2;

+a.x_location = "origin";

+a.y_location = "origin";

+plot2d3('gnn',n,x) 

+xtitle('Graphical Representation of Exponential Increasing-Decreasing Signal','n','x[n]');

diff --git a/830/CH2/EX2.1.09/Exp_Dec.sce b/830/CH2/EX2.1.09/Exp_Dec.sce
new file mode 100755
index 000000000..f84a9583b
--- /dev/null
+++ b/830/CH2/EX2.1.09/Exp_Dec.sce
@@ -0,0 +1,16 @@
+//Graphical//

+//Implementation of Equation 2.1.09c in Chapter 2

+//Digital Signal Processing by Proakis, Third Edition, PHI

+//Page 46

+// a < 1

+clear;

+clc;

+close;

+a =0.5; 

+n = 0:10;  

+x = (a)^n;

+a=gca();

+a.thickness = 2;

+a.x_location = "middle";

+plot2d3('gnn',n,x) 

+xtitle('Graphical Representation of Exponential Decreasing Signal','n','x[n]');

diff --git a/830/CH2/EX2.1.2/Transformation_in_Time1.sce b/830/CH2/EX2.1.2/Transformation_in_Time1.sce
new file mode 100755
index 000000000..99501a0a5
--- /dev/null
+++ b/830/CH2/EX2.1.2/Transformation_in_Time1.sce
@@ -0,0 +1,45 @@
+//Graphical//

+//Implementation of Eample 2.1.2 in Chapter 2

+//Digital Signal Processing by Proakis, Third Edition, PHI

+//Page 52

+

+

+clear;

+clc;

+close;

+

+x = [0 0 0 -1 0 1 2 3 4 5 5 5 5 5];

+

+x1 =  [0 0 0 x];        //x(n-3)

+

+x2 =[x 0 0];            //x(n+2)

+ 

+

+a=gca();

+a.thickness = 2;

+a.y_location = "middle";

+a.x_location = "middle"

+

+subplot(3,1,1)

+a=gca();

+a.thickness = 2;

+a.y_location = "middle";

+a.x_location = "middle"

+plot2d3('gnn',1:length(x),x) 

+xtitle('Graphical Representation of signal x',' ---> n',' --->x[n]');

+

+subplot(3,1,2)

+a=gca();

+a.thickness = 2;

+a.y_location = "middle";

+a.x_location = "middle"

+plot2d3('gnn',x1)

+xtitle('Graphical Representation of signal delayed version of x',' ---> n',' --->x[n-3]');

+

+subplot(3,1,3)

+a=gca();

+a.thickness = 2;

+a.y_location = "middle";

+a.x_location = "middle"

+plot2d3('gnn',x2)

+xtitle('Graphical Representation of signal advanced version of x',' ---> n',' --->x[n+2]');

diff --git a/830/CH2/EX2.1.24/even.sce b/830/CH2/EX2.1.24/even.sce
new file mode 100755
index 000000000..081bb1533
--- /dev/null
+++ b/830/CH2/EX2.1.24/even.sce
@@ -0,0 +1,14 @@
+//Graphical//

+//Implementation of Equation 2.1.24 in Chapter 2

+//Digital Signal Processing by Proakis, Third Edition, PHI

+//Page 51

+

+clear; clc; close;

+n = -7:7;  

+x1 = [0 0 0 1 2 3 4];

+x = [x1,5,x1(length(x1):-1:1)];

+a=gca();

+a.thickness = 2;

+a.y_location = "middle";

+plot2d3('gnn',n,x) 

+xtitle('Graphical Representation of Even Signal','n','x[n]');

diff --git a/830/CH2/EX2.1.25/odd.sce b/830/CH2/EX2.1.25/odd.sce
new file mode 100755
index 000000000..733d9c606
--- /dev/null
+++ b/830/CH2/EX2.1.25/odd.sce
@@ -0,0 +1,16 @@
+//Graphical//

+//Implementation of Equation 2.1.25 in Chapter 2

+//Digital Signal Processing by Proakis, Third Edition, PHI

+//Page 51

+clear;

+clc;

+close;

+n = -5:5;  

+x1 = [0 1 2 3 4 5]; 

+x = [-x1($:-1:2),x1];

+a=gca();

+a.thickness = 2;

+a.y_location = "middle";

+a.x_location = "middle"

+plot2d3('gnn',n,x) 

+xtitle('Graphical Representation of ODD Signal','             n','              x[n]');

diff --git a/830/CH2/EX2.1.6/sample.sce b/830/CH2/EX2.1.6/sample.sce
new file mode 100755
index 000000000..2aed758d8
--- /dev/null
+++ b/830/CH2/EX2.1.6/sample.sce
@@ -0,0 +1,14 @@
+//Graphical//

+//Implementation of Equation 2.1.6 in Chapter 2

+//Digital Signal Processing by Proakis, Third Edition, PHI

+//Page 45

+

+clear; clc; close;

+L = 4;  //Upperlimit

+n = -L:L;

+x = [zeros(1,L),1,zeros(1,L)];

+a=gca();

+a.thickness = 2;

+a.y_location = "middle";

+plot2d3('gnn',n,x) 

+xtitle('Graphical Representation of Unit Sample Sequence','n','x[n]');

diff --git a/830/CH2/EX2.1.7/step.sce b/830/CH2/EX2.1.7/step.sce
new file mode 100755
index 000000000..e3426b8df
--- /dev/null
+++ b/830/CH2/EX2.1.7/step.sce
@@ -0,0 +1,14 @@
+//Graphical//

+//Implementation of Equation 2.1.7 in Chapter 2

+//Digital Signal Processing by Proakis, Third Edition, PHI

+//Page 45

+

+clear; clc; close;

+L = 4;  //Upperlimit

+n = -L:L;

+x = [zeros(1,L),ones(1,L+1)];

+a=gca();

+a.thickness = 2;

+a.y_location = "middle";

+plot2d3('gnn',n,x) 

+xtitle('Graphical Representation of Unit Step Signal','n','x[n]');

diff --git a/830/CH2/EX2.1.8/ramp.sce b/830/CH2/EX2.1.8/ramp.sce
new file mode 100755
index 000000000..559330533
--- /dev/null
+++ b/830/CH2/EX2.1.8/ramp.sce
@@ -0,0 +1,14 @@
+//Graphical//

+//Implementation of Equation 2.1.8 in Chapter 2

+//Digital Signal Processing by Proakis, Third Edition, PHI

+//Page 45

+

+clear; clc; close;

+L = 4;  //Upperlimit

+n = -L:L;

+x = [zeros(1,L),0:L];

+a=gca();

+a.thickness = 2;

+a.y_location = "middle";

+plot2d3('gnn',n,x) 

+xtitle('Graphical Representation of Unit Ramp Signal','n','x[n]');

diff --git a/830/CH2/EX2.1.9/Exp.sce b/830/CH2/EX2.1.9/Exp.sce
new file mode 100755
index 000000000..86473466c
--- /dev/null
+++ b/830/CH2/EX2.1.9/Exp.sce
@@ -0,0 +1,14 @@
+//Graphical//

+//Implementation of Equation 2.1.9 in Chapter 2

+//Digital Signal Processing by Proakis, Third Edition, PHI

+//Page 46

+clear;

+clc;

+close;

+a =1.5; 

+n =1:10;  

+x = (a)^n;

+a=gca();

+a.thickness = 2;

+plot2d3('gnn',n,x) 

+xtitle('Graphical Representation of Exponential Signal','n','x[n]');