Development of Techniques for Evaluation of Visual Simulation Equipment

Item

Title
Development of Techniques for Evaluation of Visual Simulation Equipment
Date
1964
Index Abstract
Not Available
Photo Quality
Complete
Report Number
AMRL TDR 64-49
Creator
Harshbarger, John H.
Gill, Arthur T.
Corporate Author
Systems Research Laboratories, Inc.
Laboratory
Behavioral Sciences Laboratory
Extent
171
Identifier
AD0607680
Access Rights
OTS
Distribution Classification
1
Contract
AF 33(657)-8299
DoD Project
6114
DoD Task
611405
DTIC Record Exists
No
Distribution Change Authority Correspondence
None
Distribution Conflict
No
Cover Price
5
Abstract
A study of large area image display by projection television was undertaken to evolve techniques of suitable image generation for astronautical flight simulation training. It was necessary to develop a technique to evaluate projected images. The display provided by the research apparatus, the close-circuit television system from an F-151 Fixed Gunnery Trainer, was evaluated; and performance characteristics of the 7WP4 performance in an ultra-high resolution television system revealed the tube to be unsuited to high resolution service. The projector in the F-151 television system was converted from a conventional 525-line system to a high resolution 1029line system. The 525-line format operated at 30 frames per second, with a horizonal scanning frequency of 15.75 kc and a vertical scanning frequency of 60 cps. In the 1029-line system, the frame rate and vertical scanning frequency were retained, but the horizontal scanning frequency was changed to 30.87 kc. The vertical sweep generator, sweep protection, and projection control circuits were duplicated; a video amplifier and horizontal sweep generator were developed; and volume of the control equipment was reduced from 144 to 32 cubic feet. Performance of the 7WP4 tube exceeded the prediction: limiting horizontal resolution is 650 to 700 lines with a well defined vertical raster.
Report Availability
Full text available
Date Issued
1964-08
Provenance
RAF Centre of Aviation Medicine
Type
report
Format
1 online resource
Media
AMRLTDR64-049.pdf