ARIA Data Separation Console
Segment: ARIA The Vital Link
Patrick Air Force Base circa 1972
Source: USAF
Courtesy of Greg "Remo" Williams
ARIA's data separation console (DSC) is a dual redundant PC based (running NT 4.0) system capable of processing, for display and retransmission, multiple 10 Mbps channels. The onboard Ethernet network also allows for integration of other control and display systems, throughout the aircraft, with the new DSC. Pre- and post-detection processing of the received signals is accomplished in the data separation subsystem. This subsystem is specifically designed to process frequency modulation (FM), pulse-code modulation / bi-phase shift key (PCM/BPSK), PCM/FM, and/or PCM video signals for recording, real-time retransmission, and/or real-time strip out for analysis and mark event reporting.
Two PCM decommutators can be used in PCM data processing or checkout. The decommutator performs the following functions:
- Frame synchronization, including word-length and frame-length selection
- 33-bit parallel-binary multiplex output
- Programmable 10-bit parallel-binary display
- Analog-display meter
- 10-bit digital-to-analog conversion
- Recycle subframe synchronization, including subframe-length selection
- Identification-type subframe synchronization, including subframe-length selection
- Binary to binary coded decimal conversion
- Three-digit decimal display
The data separation system contains two bit synchronizers, either EMR 720 or Aydin Monitor 335A. Special configurations add additional bit syncs. The bit synchronizer accepts serial PCM data in the presence of noise and other perturbations and generates reconstructed coherent PCM data and timing signals.
The analog display utilizes parallel data from the decommutator to provide the operator with visual analog readouts of two selected events, using 8-bit digital to analog converters. It also provides two corresponding rear panel analog outputs to interface with a visicorder.
| Next |  |
