Method for determining concentration, pressure and temperature profiles in exhaust gas of aircraft, involves implementing derivations of forward models based on equations for radiation transport by automatic differentiation process

摘要

The method involves transferring profile functions by a discretization code in a state vector. Models of the spectra utilized for adjustment calculus are adapted to measuring spectra up to concurrence with respect to noise, in terms of a non-linear least-square-fit process by variation of the state vector. Different accuracies of independent variables such as observation angle or tangent altitude, are considered by an orthogonal distance regression process. Derivations of forward models based on equations for radiation transport are implemented by an automatic differentiation process.