Transcript ppt

Illustration of PSD variation with
Pulse Shape, DC, and Info
Correlation
By
Dr. Ali Muqaibel
The Impact of the Pulse Shape
2
10
0 Sinc
0.25
0.5
0.75
1 Full Raised Cosine
0
10
-2
10
-4
10
-6
10
-8
10
-10
10
-12
10
0
20
40
60
80
100
120
140
Amplitude
2
0
-2
Amplitude
2
0
-2
Amplitude
2
0
-2
Amplitude
2
0
-2
Amplitude
Sample of Modulated Sequence
2
0
-2
0
5
10
15
Time
20
25
30
0
5
10
15
Time
20
25
30
0
5
10
15
Time
20
25
30
0
5
10
15
Time
20
25
30
0
5
10
15
Time
20
25
30
With Correlation
2
10
0 Sinc
0.25
0.5
0.75
1 Full Raised Cosine
0
10
-2
10
-4
10
-6
10
-8
10
-10
10
-12
10
0
20
40
60
80
100
120
140
Amplitude
2
0
-2
Amplitude
2
0
-2
Amplitude
2
0
-2
Amplitude
2
0
-2
Amplitude
Sample Sequence with Correlation
2
0
-2
0
5
10
15
Time
20
25
30
0
5
10
15
Time
20
25
30
0
5
10
15
Time
20
25
30
0
5
10
15
Time
20
25
30
0
5
10
15
Time
20
25
30
Correlation & DC
4
10
0 Sinc
0.25
0.5
0.75
1 Full Raised Cosine
2
10
0
10
-2
10
-4
10
-6
10
-8
10
-10
10
-12
10
0
20
40
60
80
100
120
140
Amplitude
2
0
-2
Amplitude
2
0
-2
Amplitude
2
0
-2
Amplitude
2
0
-2
Amplitude
Correlation and DC
2
0
-2
0
5
10
15
Time
20
25
30
0
5
10
15
Time
20
25
30
0
5
10
15
Time
20
25
30
0
5
10
15
Time
20
25
30
0
5
10
15
Time
20
25
30
DC without Correlation
4
10
0 Sinc
0.25
0.5
0.75
1 Full Raised Cosine
2
10
0
10
-2
10
-4
10
-6
10
-8
10
-10
10
-12
10
0
20
40
60
80
100
120
140
Amplitude
2
0
-2
Amplitude
2
0
-2
Amplitude
2
0
-2
Amplitude
2
0
-2
Amplitude
OOK (DC without Correlation)
2
0
-2
0
5
10
15
Time
20
25
30
0
5
10
15
Time
20
25
30
0
5
10
15
Time
20
25
30
0
5
10
15
Time
20
25
30
0
5
10
15
Time
20
25
30