chapter4 transmitter and receiver applications am and fm radios gsm and cdma
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Chapter4 Transmitter and Receiver Applications AM and FM Radios GSM and CDMA TV Transmitters and Receivers Direct Broadcast Satellite ( DBS ) TV. Huseyin Bilgekul Eeng360 Communication Systems I Department of Electrical and Electronic Engineering Eastern Mediterranean University. - PowerPoint PPT PresentationTRANSCRIPT
Eeng 360 1
Chapter4
Transmitter and Receiver Applications
AM and FM Radios
GSM and CDMA
TV Transmitters and Receivers
Direct Broadcast Satellite (DBS) TV
Huseyin BilgekulEeng360 Communication Systems I
Department of Electrical and Electronic Engineering Eastern Mediterranean University
Eeng 360 2
Complete 88- to 108-MHz stereo receiver.
Eeng 360 3
Complete 88- to 108-MHz stereo receiver.
Eeng 360 4
The GSM and CDMA networks.
MSC = mobile switching center; BST = base transceiver station;
BSC = base station controller.
Eeng 360 5
MTSO linking two mobile users.
Eeng 360 6
GSM Mobile Phone
Transmitter
Receiver
Eeng 360 7
CDMA Cell Phone
Mobile Phone Transmitter
Eeng 360 8
TV receiver block diagram.
Eeng 360 9
VHF/UHF tuner block diagram.
Eeng 360 10
Video section block diagram.
Eeng 360 11
Composite color TV transmission.
Eeng 360 12
Direct Broadcast Satellite (DBS) TV
Eeng 360 13
Direct Broadcast Satellite (DBS) TV
Eeng 360 14
- 4 dB
- 2 dB
- 6 dB
150o 120o 90o 60o 30o
- 4 dB
DBS-TV footprint and rain regions
Eeng 360 15
QPSK IF amplifier upconverter LPA HPA Multiplexermodulator
Analog videoand audio signals
ADCMPEG
2 MUX
MUX
~ ~
R-SCoder
ConvCoder
I
70 MHz LO RF LO
17 GHz uplink
antenna
InterleaverDigital
multiplexerConvolutional
encoderReed-Soloman
encoderMPEG-2encoder
Other digitalsignals
Other RFsignals
M
DBS TV Uplink Transmitter
Eeng 360 16
LNA Mixer900 - 1400 MHz
IF amplifier
Coaxial cable to set topreceiver
Tuned LO
Mixer
Ku-band antenna
12.2 – 12.7 GHzDBS-TV signal
Image rejectionBPF
Local oscillator11.3 GHz
Low noise block convertermounted onantenna feed
Tuned BPFSelecttransponder
900 - 1400 MHz IF amplifier
70 MHz IF amplifier
QPSKdemod
Frequencysynthesizer
Basebandamplifier
Analog outputto TV set
D
Video
Audio
Microprocessor
D/A
Selectpolarization
Innerdecoder
Deinterleaver
Outerdecoder
MPEG-2 decoder
input
DemuxDI
DBS TV Receiver
Eeng 360 17
LNA
Mixer
900 - 1400 MHz IF amplifier
Coaxial cable to set topreceiver
Ku-band antenna
Image rejectionBPF
LO11.3 GHz
LNB mounted on antenna feed
Selectpolarization
DBS TV Receiver Front End
Eeng 360 18
Coaxial cable fromantenna and LNB
Tuned LO
Mixer
Tuned BPFto selecttransponder
900 - 1400 MHz IF amplifier
70 MHz IF amplifier
QPSKdemod
Frequencysynthesizer
Basebandamplifier
D
PF
Microprocessor
in
DBS TV Receiver IF Section
Eeng 360 19
CD DI R-SD
DeMux MPEG
Inner convolutionaldecoder
Deinterleaver
Outer R-Sdecoder
Digitaldemux
MPEG-2 decoder
D/AAudio
Video
bits
Analogoutputs
DBS TV Receiver Baseband Processing