8'1 MARY DATA COMMUNICATIONS SYSTEMS

1
8. ADVANCED DATA COMMUNICATIONS
8.1 M-ARY DATA COMMUNICATIONS SYSTEMS
2
(No Transcript)
3
(No Transcript)
4
(No Transcript)
5
(No Transcript)
6
OQPSK Systems
MSK Systems
7
(No Transcript)
8
M-ary Data Transmission in terms of Signal Space
9
Example 8.1
Qpsk in Terms of signal Space
10
(No Transcript)
11
M-ary Phase-Shift Keying
12
(No Transcript)
13
Quadrature-Amplitude-Shift Keying(QASK)
14
Coherent Frequency-Shift Keying
Nocoherent Frequency-Shift Keying
15
Bit Error Probability from Symbol Error
Probability
16
Example 8.2
Comparison of M-ary Communication System
Example 8.3
8.2 Bandwith Efficiencies of Digital Modulation
Formats
17
(No Transcript)
18
Power spectral density of a synchronous data
stream generated by a binary, zero mean, wide
sense stationary sequence
19
(No Transcript)
20
(No Transcript)
21
(No Transcript)
22
(No Transcript)
23
8.3 Synchronization
Carrier Synchronization
Bit Synchronization
Word Synchronization
Pseudo-Noise(PN) Sequences
24
8.4 Spread-Spectrum Communication System
Direct-Sequence Spread Spectrum
25
(No Transcript)
26
(No Transcript)
27
(No Transcript)
28
Frequency-Hop Spread Spectrum
29
Code Synchronization
30
8.5 SATELLITE COMMUNICATIONS
Antenna Coverage
31
Example 8.4
32
Earth Station and Transmission Methods
Link Analysis Bent-Pipe Relay
33
(No Transcript)
34
(No Transcript)
35
Example 8.5
36
Link AnalysisOBP Digital Transponder
37
Example 8.6