GTS/DEC/006 Smart Source Selector and PCM Decom (20 Mbps) - 3 ch.

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GTS/DEC/006 Smart Source Selector and PCM Decom (20 Mbps) - 3 ch.
Product Sheet
Product Sheet

The GTS/DEC/006 reconstructs a serial PCM data stream from a source that has been corrupted by noise, phase jitter, or amplitude modulation.

Features

  • Bit error rate performance within 1dB of theory
  • Bit-rates up to 20 Mbps (NRZ-L codes)
  • Uses signal quality estimates to weigh input signals
  • Yields performance gain of up to 4.7dB when all channels are used
  • NRZ-L/M/S, BIØ-L, derandomizer (11,13,15,17, 23)
  • Sync word length up to 64 bits
  • 0 to 16 bits sync word error tolerance
  • 4 to 64 bits per word
  • Supports digital IRIG-B 000, 001, 002, 003 time formats

Applications

  • Real-time ground stations
  • Telemetry data links
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GTS/DEC/006 Smart Source Selector and PCM Decom (20 Mbps) - 3 ch.

The GTS/DEC/006 reconstructs a serial PCM data stream from a source that has been corrupted by noise, phase jitter, amplitude modulation, or baseline variations. The all-digital design utilizes three independent, programmable matched filters and Phase-Locked Loops (PLL) to track deviations in the bit rate of the received signals.

The output from the bit synchronizers is fed into the Smart Source Selector thereby producing a hard decision (1 or 0) based on the signal quality of the received bits. If the soft values are shifted in time, data is re-aligned prior to combining the soft values.

The recovered data is then decommutated into frames. Each minor frame can be tagged with time from an IRIG-B source to an accuracy of 1μs.