Basic unit for real time display of PCM data
Abstract
A real-time video display microprocessor unit, handling the data flow from balloon-borne pressure and temperature sondes, is described. The digital system is based on PCM telemetry and can be used for any frame which uses multiples of eight bits. Microswitch adjustments for sync-word and frame length are included. There is no parity bit foreseen in the design, but slight modifications in hardware and software allow the use of 9 bit structures (8 bit data + parity).
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- May 1979
- Bibcode:
- 1979STIN...8117122S
- Keywords:
-
- Computer Systems Programs;
- Display Devices;
- Pcm Telemetry;
- Real Time Operation;
- Balloon Sounding;
- Binary Codes;
- Bit Synchronization;
- Digital Data;
- Digital Television;
- Flow Charts;
- Intel 8080 Microprocessor;
- Parity;
- Synchronizers;
- Technology Utilization;
- Space Communications, Spacecraft Communications, Command and Tracking