Identification of Parameters using iterative Bi‐parabolic Target Functions

The Levenberg Marquardt algorithm [1] is a common choice for identification problems. While the construction of the residuals and therefore the target function is quite simple, the results are often superior. This changes if the final target consists out of several target values which affects each other to a not unique solution. The specification of so called border curves or error bands will improve the identification process. New ways to use this border curves and to construct a new target function will be shown.