Evaluation of Alternative Video Imagery Processors in Unjammed and Jammed Environments in Terms of Operator Performance in a Weapon Delivery Simulator

摘要

Five studies are reported in which the relative effectiveness of alternative video imagery processing techniques were evaluated. The processors were evaluated first in a simulated unjammed mode and then in a simulated jammed mode. The evaluations employed a GBU-15 electro-optical (TV) guided bomb, real-time simulator as a common test bed such that alternative techniques could be compared under identical conditions. Operators were required to find a pre-briefed target, lock-on to the target, perform lock-on adjustments (i.e., 'fine tune' accuracy), and control, via hand control interface, the weapon on target. Major conclusions of the studies were: the processor employing the 1-dimensional cosine transform with differential pulse code modulation between the lines technique performed best in the unjammed mode, the processor employing the 2-dimensional cosine transform the frame sample technique performed best in the jammed mode, video display symbology should not be processed with imagery at data transmission rates of 300 kbs or less and display resolution of 128 lines or less, and display resolution may be the most important processing parameter relative to the parameters of frame rate and the number of bits per picture element. (Author)