Transcript SDR: Mjukvarudefinierad Radio

SDR:
Mjukvarudefinierad Radio
Olika typer och praktisk tillämpning
Tilman D. Thulesius
SM0JZT
Revision : Apr 2012 / Tilman
Analog Radio
HW-8, DRAKE TR7, Collins KWM-2.....
SCR = Software Controlled Radio
CI-V, CAT, RS232, USB
FDR = Firmware Defined Radio
QROlle, IC-7600, FT-2000 o.s.v
SDR = Software Defined Radio
SoftRock, Flex-Radio, PM-SDR, SDR-Cube, HPSDR
Computer connected to a antenna.......
Radio enligt filtermetod
HF
Mix
VFO
IF
Mix
BFO
A
G
O
L
A
N
AF
K
E
T
K
I
N
Radio enligt filtermetod
AN
HF
G
O
AL
Mix
VFO
K
E
T
IF
K
I
N
Mix
BFO
FDR
NR, FIL, BC, DSP,
AGC, DNL
AF
Radio enligt filtermetod....
AN
HF
G
O
AL
Mix
VFO
K
E
T
IF
K
I
N
Mix
AF
BFO
DSP = Digital Signal
Processing
Defined in Software...
AGC, DNL, EQ, Proc, NR, Filter, BPT, BC.....
Praktisk tillämpning 1:
Typer av SDR
QSD
Quadrature Sampling Detector
●Dan Tayloe N7VE
●Pros: Mycket bra pris/prestanda
●Cons: Typisk bandbredd 40+ KHz
Exempel: SoftRock, FLEX Radio, JUMA TRX2, SDR Cube
●
ADC / DAC
Analogue → Digital Conversion
●Digital → Analog Conversion
●Pros: Mycket goda prestanda,stor bandbredd +400 Khz
●Cons: Hög beräkningskapacitet krävs = $$
Exempel: SDR-IQ, QS1R, Perseus
●
QSD:
Block diag
SoftRock RX
1.8 – 30 Mhz....
ADC:
SDR-IQ
www.rfspace.com
MJUKVARA
PowerSDR
ROCKY
SDRadio
Cute SDR
Praktisk tillämpning 2:
SDR över nätet
”sdr-radio.com” HB9DRV Simon
Radiodel
●
●
●
●
●
●
Fun-Cube dongle
SoftRock
PMSDR
SDR-IQ
SDR-Net
SDR-IP
Mjukvara
sdr-radio.com
●
Server
●
Consol
64 – 1700 Mhz
sdr-radio / Remote
USB driver
RF-space
R
Internet
R
SDR-IQ
Funcube
Sdr-radio
Server - sw
USB driver
Si570
Ljudkort
USB
Antenna
Sdr-radio
Consol - sw
Antenna
Win - PC
Win - PC
Ljudkort
USB
Audio
SoftRock
PMSDR
sdr-radio / Server
Antenna
Win - PC
USB driver
RF-space
USB
SDR-IQ
Funcube
Antenna
Sdr-radio
Server - sw
USB driver
Si570
Ljudkort
USB
Audio
SoftRock
PMSDR
sdr-radio / Server - config
sdr-radio / Consol
Antenna
Win - PC
USB driver
RF-space
USB
USB driver
Si570
Ljudkort
Antenna
Sdr-radio
Consol
- sw
Sdr-radio
Server - sw
SDR-IQ
Funcube
USB
Audio
SoftRock
PMSDR
sdr-radio / Nät - config
USB driver
RF-space
R
Internet
R
SDR-IQ
Funcube
Sdr-radio
Server - sw
USB driver
Si570
Ljudkort
USB
Antenna
Sdr-radio
Consol - sw
Antenna
Win - PC
Win - PC
Ljudkort
USB
Audio
SoftRock
PMSDR
sm0jzt.dnsalias.net
dyn.net
”port forwarding”
– publik adress/port mot privat adress/port
sdr-radio / External
USB driver
RF-space
R
Internet
R
Ljudkort
CAT-interface
SDR-IQ
Funcube
Sdr-radio
Server - sw
USB driver
Si570
Ljudkort
USB
Antenna
Sdr-radio
Consol - sw
Antenna
Win - PC
Win - PC
USB
Audio
SoftRock
PMSDR
sdr-radio / Demo....
Direkt-SDR på nätet
http://www.WebSDR.org
Titta efter: SK4KO Siljansbygden
Mera information ??
www.dspguide.com
www.dspguru.com
Gratis DSP-bok
DSP-info
Digital Signal Processing Technology – D. Smith - ”pappersbok”
www.rfspace.com
www.srl-iic.com
www.flex-radio.com
www.kb9yig.com
www.sdr-cube.com
radio.thulesius.se
SDR-IQ, Net-SDR, SDR-IP
QS1R / QS1E
Flex-Radio TRX
SoftRock
SDR-Cube kit
SM0JZT egenbygge