Introduction：
Our company is a remote sensing satellite ground system manufacturer. The high-speed digital demodulator is a comprehensive processing device integrating dual-channel frequency conversion, modulation, encoding, demodulation, decoding, storage, carrier acquisition, tracking, synchronization, spectrum display and signal analysis. The demodulator provides a real-time data demodulation and decoding service for satellite ground systems and ground stations. The IF of demodulaor can support 720MHz, 1.2GHz, 1.5GHz, modulation mode can support PSK, QAM, APSK, GMSK, etc., decoding mode can support RS, Viterbi, RS+Viterbi, LDPC, DVB-S2 mode,
etc.
The high-speed digital demodulator has applied for 8 patents with series technologies such as continuous variable rate parallel demodulation algorithm, parallel carrier recovery and parallel clock recovery technology, parallel frequency domain equalization technology, parallel LDPC decoding implementation technology, etc. It also adapts to a variety of modulation and decoding methods and the demodulator has been successfully delivered to customers in Ukraine, Brazil, Venezuela and other countries. we can also supply the customize demodulator equipment according to customer needs.
and the delivery date is completed within three months after the order is placed.
Advantages:
● Perfect human-computer interaction function;
● Small size, single unit 2U;
● Advanced performance, leading domestic and international advanced;
● Solution mode and decoding mode can be set dynamically;
● Universal platform, multi-satellite, multi-mode compatible processing
● Accept customization
Parameters:
|
IF Reception,Demodulation |
|
|
IF Frequency |
720MHz±190MHz |
|
AGC Dynamic Range |
-10dBm～-50dBm |
|
Input Port |
1 |
|
Input Impedance |
50Ω |
|
Carrier Cdiameter Range |
±500KHz |
|
Demodulation Mode |
QPSK/OQPSK/SQPSK/GMSK |
|
Demodulation Code Speed |
10Mbps～500Mbps continuously variable |
|
Synchronization Threshold |
≤2dB(Eb/N0) |
|
Demodulation Loss |
BER-10-2＜0.8dB BER-10-6＜2dB |
|
Bit Synchronizer |
|
|
Cdiameter Range |
Symbol rate 50ppm |
|
PCM Code Pattern |
NRZ-L/M/S,BP-L,DNRZ |
|
Output Port |
Gigabit network port Parallel or serial I and Q channels (data, clock differential decoding) |
|
Output Electrical Interface |
RJ45(TCP/IP),ECL |
|
Frame Synchronization Head |
Configurable |
|
Decoder |
|
|
Cascading Decoding |
Suitable for relay satellites |
|
LDPC Decoding |
CCSDSstandard7/8 |
|
Structure and Environment |
|
|
Structure |
19-inch 2U industrial chassis |
|
Work Temperature |
+10℃～+40℃ |
|
Storage Temperature |
-20℃～+60℃ |
|
Relative Humidity |
40%-90% no condensation |
|
Power Supply |
|
|
Power voltage |
AC,voltage 90V～265V,frequency 47Hz～63Hz |
|
Power Current |
Peak current 1.5A |
Applications：
● The high-speed digital demodulator can be used in various types of ground system, Serving in the fields of agriculture, forestry, animal husbandry and fisheries.
● We provide the whole package of design, production, installation and training service to our customers.With strong strength, we can guarantee delivery within three months.
Service :
We provide the whole package of design, production, installation and training service to our customers.With strong strength, we can guarantee delivery within three months once the order is placed.
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