Electronic filter design handbook (third ed.)
Electronic filter design handbook (third ed.)
Numerical Methods Using MATLAB
Numerical Methods Using MATLAB
A computationally efficient evolutionary algorithm for real-parameter optimization
Evolutionary Computation
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A lot of methods for analog filter group delay optimization have been developed. In the article an original approach to the evaluation of the optimization methods is presented. Our approach is based on the original representation of the optimization results in a polar space. In that space there are very interesting spirals indicating the optimization efficiency directly and clearly. This approach can be also used for evaluation of other optimized parameters and functions. The contribution contains a few practice examples of evaluation. The described approach extends the classical evaluation methods. Polar portraits of optimization results provide generalized view of optimization process.