On missiles modelling, simulation and evaluation in presence of noise and multi-source environment

This paper reports results obtained in the course of evaluating a specific missile simulation in the presence of noise and multi-source environment. The objectives of this research are two-fold: First, to update a previously developed all-digital simulation model by making adequate accommodations of a significant noise signal, occurring during field experimentation; second, to make use of field and corresponding simulation data, from the updated model, in validating the model. Box-Jenkins time series techniques have been used to develop an adequate model that fits the seasonal-nonstationary noise signal. Few computer programs have been used for the analysis of field-data, fitting and checking the adequacy of the selected model. The fitted model is of the Autoregressive Integrated Moving-Average (ARIMA) type. Theil's Inequality Coefficient (TIC) has been used to examine the credibility of the forecasted time-series generated by the fitted model.