Les différents systèmes proposés : DIGILITE DVB-S DATV

D-ATV
Les différents systèmes proposés :
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DIGILITE DVB-S
SR-Systems DVBS
DATV-Express
DTX1
UGLYDATV
« www.g8ajn.tv »
« www.d-atv.org »
« www.datv-express.com »
« www.batc.org.uk »
« f5oeo.fr/UglyDATV01.pdf »
DIGILITE
PC Processing
For DVB-S Protocol
Source
Vidéo
analog
RF
ANT
WIN 32-bits O/S
Read Program Stream
Prep, Transport Stream
MPEG-2
Encodeur
PCI
Source
Audio
analog
USB-2
Controller
Digilite
Exciter Board
For 70/23 cm DVB-S
Carte de
Capture
Vidéo,
Digilite Config,
Digilite Transmit
USB
CTLR
USB-2
16-bit ds PIC33 based
Convolutional FEC
I/Q-to-QPSK Modulator
Local
oscillator
Block Diagram of Digilite DVB-S Transmitter for D-ATV
RF
Power
Amp,
Digilite Modul
SR-SYSTEMS
Source
Vidéo
analog
SR Systems
MiniMod3 DVB-S 1xTS
Exciter Board
SR Systems
MPEG-2
Encoder
RF
ANT
Transport Stream
Generation
MPEG-2
Compression
1-stage
RF
Power
Amp,
Convolutional FEC
,
I/Q-to-QPSK Modulator
Source
Audio
analog
1,2GHz
DVB-S
At
1mW
2-stage
RF
Power
Amp,
1,2GHz
6 to 10
Watts
LCD
DISPLAY
Block Diagram of SR-Systems DVB-S Transmitter for D-ATV
DATV-EXPRESS
DATV express
Exciter Board
Running 1,2GHz DVB-S
PC Processing
For DVB-S Protocol
Source
Vidéo
analog
Ubuntu/WIN 32-bits O/S
MPEG-2
Encodeur
USB
Source
Audio
analog
RF
ANT
Carte de
Capture
Vidéo,
Read Program Stream
Add SI Tables
Scramble
Add convolution FEC
Code Puncture
Map to IQ
GUI (QT5)
USB
RF
Power
Amp,
FPGA-based
Extract USB Data
FIR Filter
I/Q Modulator
1,2GHz
DVB-S
at10mW
Block Diagram of DATV-Express DVB-S Transmitter for D-ATV
1,2GHz
6 to 10
Watts
DTX1
BATC DTX1
Exciter Board
Running at 1,2 Ghz DVBS
Source
Vidéo
analog
RF
ANT
MPEG-2 Encoder
Transport Stream generation
Convolutional FEC
Code Puncture
I/Q-to-QPSK
, Modulator
1-stage
RF
Power
Amp,
2-stage
RF
Power
Amp,
3-stage
RF
Power
Amp,
Source
Audio
analog
LCD
DISPLAY
1,2GHz
DVB-S
At
0,3mW
Block Diagram of DTX1 DVB-S Transmitter for D-ATV
1,2GHz
7 to 10
Watts
UGLYDATV
Raspberry Pi
Camera
RPi
QPSK Modulateur
I
Raspi Video
Nyquist Filter
FFMPEG
QPSK Mod,
TS->DVBS-TS
Q
Block Diagram of Rpi Ugly DVB-S Transmitter for DATV
RF
Power
Amp,
Link Raspberry Pi to IQ modulator
ATV
D-ATV
Comparaison entre vidéo analogique ATV et vidéo D-ATV utilisant la même antenne
avec faible signal
Réalisation ON4KJV
Pour
REEC