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參數資料
| 型號： | ST-135 |
| 英文描述： | Software Radio Demodulator for demodulating diverse signals |
| 中文描述： | 軟件無線電解調器的不同信號的解調 |
| 文件頁數： | 1/1頁 |
| 文件大小： | 104K |
| 代理商： | ST-135 |
ST-135
Software Radio Demodulator
for demodulating diverse signals
Ordering Information
ST-135-xxx Burst Demod
-000
: Analog input
-ECL : ECL input
-DMF : CDMA option
-FEC : FEC option
Demodulates BPSK,
DBPSK, QPSK, DQPSK,
OQPSK, MSK, and FSK
PSK symbol rates from
1.2 kS/s to 16 MS/s
FSK symbol rates from
1.2 kS/s to 500 kS/s
Phase estimator assisted
TDMA burst acquisition
Tuning resolution of 1 Hz
Java
TM
remote control over
TCP/IP interface
NT device drivers
(Solaris
TM
drivers optional)
TDM, TDMA, Push-to-Talk,
SCPC
Matched filter CDMA
spread spectrum RX (opt.)
FEC decoder (opt.)
Features
www.sigtek.com
9075 Guilford Road, C-1 Columbia, MD 21046 410-290-3918 410-290-8146 fax
Soft decision bits:
X-Y constellation:
RS-422 and VME P2
SMA, high impedance scope
INPUT
OUTPUT
Signals:
Rates:
BPSK, DBPSK, QPSK, DQPSK, FSK, and MSK
PSK from 1.2 kS/s to 16 MS/s
FSK from 1.2 kS/s to 500 kS/s
Phase estimator assisted
5% of symbol rate
Burst acquisition:
Carrier error tracking:
FEC Decoder/Capture (optional)
Viterbi FEC:
Capture buffer:
DEMODULATION
A member of Filtronic Sigtek’s high performance VME software radio family, the
ST-135 high performance software radio demodulates a growing set of signals
including BPSK, DBPSK, QPSK, DQPSK, FSK and MSK. Bit rates from 1.2 Kbps
to 32 Mbps with future growth to 40 Mbps and beyond. The expandable software
radio architecture allows addition and enhancement of demodulation types.
Control software includes a Java
TM
control application for TCP/IP remote
operation and NT device drivers. Options include a direct sequence CDMA
spread spectrum receiver and FEC decoder.
*Chassis are available upon request
001-0135-700 Rev. 1
Tuner/ADC
Converter
(optional)
(optional)
Bit
Mapper
Demod
NCO
NCO
IF
I
Q
Capture
Soft
Decisions
Analog
Digital Down
CDMA
Despread
FEC
Capture
Digital
Carrier
Symbol
Analog
I and Q
ST-135 Software Radio Block Diagram
IF:
Level:
External Reference:
Connector:
120 to 200 MHz 45 to 95 MHz (optional)
-10 to -60 dBm
10 MHz
SMA, 50 ohm
1/2, 3/4, and 7/8 with constraint length 7
2 Msamples x 16-bit I and Q
Direct Sequence CDMA Spread Spectrum Receiver (optional)
Signals:
Chip rates:
Sequence Length:
Acquisition:
BPSK and QPSK
1 MHz to 16 MHz
2
4
to 2
21
(SRAM loadable)
1024 length, matched filter assisted,
serial despreader
ST-135 VME Card
Double width VME: 6U x 160mm
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