Software simulation results are presented for the performance on a nonlinear AWGN band-limited satellite channel of the INTELSAT IBS (2,1) and punctured (4,3) convolutional codes with QPSK modulation and a (3,2) trellis code with 8PSK modulation. Bit error rate estimates are obtained using the...

The function of statistical distribution modelling is presented including its advantages and limitations. A simple framework is provided to indicate how methods of distribution identification and parameter estimation can be chosen. The application of air quality management is used to demonstrate...

Simulation models are currently used to predict environmental impacts. However, models must be adapted to the peculiarities of the given situation and one of these adaptations consists in the calibration of certain model parameters. The calibration is made by an optimization technique in which...

The techniques of perturbation analysis (PA) are generalized from the viewpoint of efficiently generating sample paths of discrete event dynamic systems (DEDS) operating under different parameter values. The central idea, denoted as ‘cut-and-paste’, is simply to utilize one segment of a...

Precipitation is one of the most variable of the hydrologic processes. This presents two particular problems when hydrologic process of basin scale are studied via mathematical models. The first is the extent to which areal rainfall distribution can be determined from point measurements and the...

A spectral analysis model is used to obtain estimates of the likely maximum response in a one-hour period of typical offshore beacon structures responding dynamically to a Pierson-Moskowitz sea state. The sensitivity to various parameters of this likely maximum response is determined...

Environmetrics is the application of quantitative methods to all aspects of the social and natural environment. This includes forecasting, mathematical modelling, data analysis, and statistics. Applied Environmetrics as a discipline involves the analysis of environmental data through the use of...

The time evolution of dynamical systems with random initial conditions is considered, by deriving the nth order probability density of the stochastic process which describes the response of the system, and the entropy function related to the said distibution. A constructive theorem is proved,...

In this paper, the subcritical compressible small disturbance equation is employed to simulate the nonlifting flow over a 6% thick circular arc. The governing nonlinear elliptic boundary value problem is solved numerically with the collocation finite element technique using the Hermite bicubic...

A heuristic procedure is developed for determining the optimum values of the decision variables of discrete variable systems whose performances are evaluated by computer simulation. The objective function and some of the constraints of this optimization are various responses of the simulated...