Self-adjusting flight electronics (SAFE)

Computer Science – Performance

Scientific paper

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Avionics, Charge Coupled Devices, Computer Techniques, Expert Systems, Fortran, Arrays, Heuristic Methods

Scientific paper

The design and performance of SAFExpert, an expert-system program developed (as part of the SAFE program) to adjust the clock levels and biases of avionic CCD detector arrays, are described. The basic adjustment problem is defined; the expert-system approach (combining basic knowledge of the device physics and engineering experience) is explained; and the process flow and operation of SAFExpert are presented in diagrams and characterized in detail. In test optimizations involving three different CCD arrays preset to three different sets of (degraded-performance) clock/bias levels, SAFExpert achieved 50-percent better bucket capacity in about 8 min than a human expert obtained (by manual tweaking) in 30-60 min. The applicability of SAFExpert to other parameter-adjustment and optimization problems is discussed.

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