Analog Filter Group Delay Optimization. Efficiency Evaluation of Optimization Methods
نویسنده
چکیده
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. Key-Words: Analog filters, group delay, optimization, evaluation, polar space,
منابع مشابه
Low latency IIR digital filter design by using metaheuristic optimization algorithms
Filters are particularly important class of LTI systems. Digital filters have great impact on modern signal processing due to their programmability, reusability, and capacity to reduce noise to a satisfactory level. From the past few decades, IIR digital filter design is an important research field. Design of an IIR digital filter with desired specifications leads to a no convex optimization pr...
متن کاملPractice Utilization of Algorithms for Analog Filter Group Delay Optimization
This contribution deals with an application of three different algorithms which optimize a group delay of analog filters. One of them is a part of the professional circuit simulator Micro Cap 7 and the others two original algorithms are developed in the MATLAB environment. An all-pass network is used to optimize the group delay of an arbitrary analog filter. Introduced algorithms look for an op...
متن کاملOptimization design of orthogonal filter banks for image coding via multi-objective genetic algorithm
In this paper, we propose an optimisation method based on a multi-objective Genetic Algorithm (GA) for the design of orthogonal filter banks in an image coding scheme. A parameterization is used to achieve perfect reconstruction orthonormal FIR filter banks with a first order regularity. We search the optimal parameter set according to the coding gain, frequency selectivity and the group delay ...
متن کاملDesign of Two-Channel Low-Delay FIR Filter Banks Using Constrained Optimization
This paper shows the efficiency of using constrained optimization for designing two-channel low-delay finite impulse response filter banks. The filter banks under consideration are quadrature mirror filter (QMF) banks and perfect reconstruction (PR) biorthogonal filter banks. The design problems for both types of banks are stated as constrained minimization problems in forms that enables us to ...
متن کامل