-
Notifications
You must be signed in to change notification settings - Fork 0
/
finalexp1.m
165 lines (147 loc) · 2.49 KB
/
finalexp1.m
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
clc;clear all; close all;
%% unit step
t=-5:0.1:5;
l=length(t);
for i=1:l
if t(i)<0
unit_step(i)=0;
else
unit_step(i)=1;
end
end
subplot(3,2,1);
stairs(t,unit_step);
axis([-5 5 -0.2 1.2])
grid on
title('unit step cont')
xlabel('time----->')
ylabel('amplitude--->')
subplot(3,2,2);
stem(t,unit_step);
axis([-5 5 -0.2 1.2])
grid on
title('unit step disc')
xlabel('time----->')
ylabel('amplitude--->')
%% ramp plot
for i=1:l
if t(i)<0
unit_ramp(i)=0;
else
unit_ramp(i)=t(i);
end
end
subplot(3,2,3);
plot(t,unit_ramp)
axis([-5 5 -0.2 5])
title('ramp cont')
xlabel('time----->')
ylabel('amplitude--->')
grid on
subplot(3,2,4);
stem(t,unit_ramp)
axis([-5 5 -0.2 5])
title('unit ramp disc')
xlabel('time----->')
ylabel('amplitude--->')
grid on
%% exponential
a=2
for i=1:l
if t(i)<0
unit_ex(i)=0;
else
unit_ex(i)=exp(-a*t(i));
end
end
subplot(3,2,5);
plot(t,unit_ex)
axis([-5 5 -0.2 1.2])
title('exponential cont')
xlabel('time----->')
ylabel('amplitude--->')
grid on
subplot(3,2,6);
stem(t,unit_ex)
axis([-5 5 -0.2 1.2])
title('exponential disc')
xlabel('time----->')
ylabel('amplitude--->')
grid on
%% sine wave
a=2
for i=1:l
si(i)=a*sin(a*t(i));
end
figure
subplot(3,2,1);
plot(t,si)
title('sine cont')
xlabel('time----->')
ylabel('amplitude--->')
grid on
figure(2)
subplot(3,2,2);
stem(t,si)
title('sine cont')
xlabel('time----->')
ylabel('amplitude--->')
grid on
%% square impulse
base=2;
half=(base)/2;
for i=1:l
if t(i)< -(half)
imp(i)=0
elseif t(i)<0
imp(i)= base
elseif t(i)<1
imp(i)=base
else
imp(i)= 0
end
end
figure(2)
subplot(3,2,3);
stairs(t,imp)
axis([-5 5 -0.2 3])
title('imp cont')
xlabel('time----->')
ylabel('amplitude--->')
grid on
figure(2)
subplot(3,2,4);
stem(t,imp)
axis([-5 5 -0.2 3])
title('imp dis')
xlabel('time----->')
ylabel('amplitude--->')
grid on
%% triangular
base=2;
half=(base)/2;
for i=1:l
if t(i)< -2
tri(i)=0
elseif t(i)<0
tri(i)= t(i)+2
elseif t(i)<2
tri(i)=-t(i)+2
else
tri(i)= 0
end
end
subplot(3,2,5);
plot(t,tri)
axis([-5 5 -0.2 3])
title('tri cont')
xlabel('time----->')
ylabel('amplitude--->')
grid on
subplot(3,2,6);
stem(t,tri)
axis([-5 5 -0.2 3])
title('tri dis')
xlabel('time----->')
ylabel('amplitude--->')
grid on