Accession Number:

ADA139432

Title:

Digital Capability for Cockpit Television Sensor Instrumentation Systems

Descriptive Note:

Final rept. 1 Aug 80-30 Jun 83,

Corporate Author:

AIR FORCE WRIGHT AERONAUTICAL LABS WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1983-11-01

Pagination or Media Count:

65.0

Abstract:

An approach is presented for incorporating digital capability into a video instrumentation system consisting of a solid-state CCD television camera and video cassette recorder. The approach consists of passive data acquisition from a MIL STD 1553B Multiplex Serial Data Bus with the acquired data being encoded into an unused portion of the video signal. The digital data is encoded as manchester format luminance excursions in the normally blanked horizontal rasters of the video vertical blanking interval. A laboratory prototype of this device Bus-MonitorVideo-Encoder or BMVE was developed along with a device or Video Decoder for recovery of the digital data from the video signal. The BMVE and Video Decoder were used in laboratory testing to establish the performance parameters and design requirements needed for an actual airborne application of the BMVE approach. A video encoding format for fault-tolerant data recovery is also developed and presented. Test results demonstrate that the primary limitation of this approach is the video cassette recorder bandwidth and that even the lower bandwidth video recorders can support application-dependent capacities of 1-3 thousand digital 16-bit words per second.

Subject Categories:

  • Recording and Playback Devices

Distribution Statement:

APPROVED FOR PUBLIC RELEASE