Demodulators
Digital Signal Processor (DSP) Demodulators
Orbital Systems’ versatile Digital Signal Processor (DSP) demodulators provide superior performance, very low implementation loss, and flexible multi-mode operation for current and future satellite formats.
HRD-200 High-Rate Demodulator
- Digital receiver for demodulating EOS satellite signal formats and Aqua, Terra, FY3 MERIS, Oceansat 2, NPP and JPSS (NPOESS) satellites
- FPGA based software defined demodulator
- OQPSK/QPSK/BPSK demodulation up to 40 MSPS
- OQPSK/QPSK/BPSK performance within 0.2 dB of theoretical
- Built-in Viterbi decoding for FEC Encoded downlinks
- 720 MHz RF input
- -60 dBm to 0 dBm input range
- USB, RS-422, LVDS, and 50 ohm TTL clock and NRZ data outputs
- Ethernet and USB control for setup, tuning, mode selection, and status
- 2 line, 20 character LCD display for status and signal level readout
- Displays received Eb/No
- Variable root raised-cosine filters (RRC)
LRD-200 Low-Rate Demodulator
- Digital receiver for demodulating EOS satellite signal formats for multiple low rate EOS satellites, see below for versions
- QPSK/BPSK/PSK demodulation up to 3.5 MSPS
- QPSK/BPSK performance within 0.5 dB of theoretical
- Built-in Viterbi decoding for next generation downlinks
- 126 - 154 MHz RF input or 70 MHz IF input
- Selectable RF inputs and IF bandwidths for multimode flexibility
- -90 dBm to -20 dBm input range
- USB, RS-422, LVDS, TTL and 50ohm TTL clock and NRZ data outputs
- Ethernet and USB control for setup, tuning, mode selection and status
- 2 line, 20 character LCD display for status and signal level readout
Available in two configurations:
All Mode Geosync Weather Receiver (Rate 1/2 viterbi)
- GOES GVAR, GOES LRIT, MSG LRIT, MTSAT HRIT, MTSAT LRIT, Meteosat PDUS, FY2 SVISSR, NOAA HRPT, FY1 CHRPT
All Mode Polar Weather Receiver (rate 3/4 viterbi)
- NOAA HRPT, FY1 CHRPT, METOP AHRPT, GOES GVAR, Meteosat PDUS, FY2 SVISSR