The main goal of this paper is to propose a two-step method for the estimation parameters in non-linear mixed-effects models. A first-step estimate θ˜ vector θ obtained by solving equations, with working covariance matrix as identity matrix. It shown that consistent. If, furthermore, we have an estimated matrix, V^, θ˜, second-step estimator θ^ can be optimal equations. maintains asymptotic opt...

This paper presents the estimation of stability and control derivatives an unmanned aircraft. The aerodynamics are described using regressors composed velocity, angular rates, flow angles surface deflections. flight data is generated from numerical simulation postulated equations motion describing model. Least squares based on equation error method used to estimate parameters representing diffe...

Real-time freeway traffic state estimation plays an important role in Dynamic Traffic Management (DTM) and Advanced Traveler Information Systems (ATIS). One of the model-driven estimation techniques used in practice is based on the Extended Kalman Filter (EKF). It consists of two components: the Predictor forecasts the traffic state over a short period of time, usually a few seconds; the Correc...