Digital Signal Processor (DSP) Demodulators

Orbitals’ versatile Digital Signal Processor (DSP) demodulators provide superior performance, very low implementation loss and flexible multi-mode operation for current and future satellite formats.  Digital signal processing of L and X band weather and earth observation satellite data reception.  

Front-HRD-DSC_0001-150x34High-Rate Demodulator

HRD-200B High-Rate Demodulator Data Sheet

Digital signal processing for demodulating EOS satellite signal formats down linked in X band.  

  • 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-200B-Front_0091--150x35Low-Rate Demodulator

LRD-200B Demodulator Data Sheet

Digital signal processing for demodulating EOS satellite signal formats down linked in L band.

  • 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
  • All mode polar weather receiver, rate 3/4 viterbi