The automatic determination of human and other system parameters

Automatic computer methods for the determination of system parameters from dynamic test data e.g., those of Meissinger, Leondes, Margolis, Graupe, Turner, and the authors, are reviewed and compared at length. Two applications of a method of steepest descent (on the absolute magnitude of the system-equation-satisfaction error) are reported. In the first, simultaneous automatic analog determination of four coeffcients in a human response equation (transfer function) was accomplished. The second application of the technique was in an analog determination of aerodynamic coefficients from simulated flight test data. The paper is concluded by a brief discussion of a broad range of potential applications of methods for determination of the parameter values required for computer simulation of human systems, other biological systems, socio-economic systems, and physical systems of concern in science and engineering.

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