Optimal design of FIR frequency-response-masking filters using second-order cone programming
نویسندگان
چکیده
Since Limís 1986 paper on the frequency-response masking (FRM) technique for the design of FIR digital Ýlters with very small transition widths, the analysis and design of FRM Ýlters have been a subject of study. In this paper, a new optimization technique for the design of FRM Ýlters is proposed. Central to the new design method is a sequence of linear updates for the design variables, with each update carried out by second-order cone programming. Design simulations are presented to illustrate the proposed algorithms and to evaluate the design performance.
منابع مشابه
Optimal Design of IIR Frequency-Response-Masking Filters Using Second-Order Cone Programming
The frequency-response-masking (FRM) technique proposed by Lim has proven effectiveness for the design of very sharp digital filters with reduced implementation complexity compared to other options. In this paper, we propose a constrained optimization method for the design of basic and multistage FRM filters where the prototype filters are of infinite-impulse response (IIR) with prescribed pole...
متن کاملOptimization Of Frequency-Response Masking Based Fir Filters
A very efficient technique to drastically reduce the number of multipliers and adders in implementing linear-phase finite-impulse response (FIR) digital filters in applications demanding a narrow transition band is to use the frequency-response masking (FRM) approach originally introduced by Lim. The arithmetic complexity can be even further reduced using a common filter part for constructing t...
متن کاملDesign and Efficient Implementation of Single Filter Frequency-response Masking Fir Filters
ABSTRACT In this paper single filter frequency-response masking FIR filters are introduced. The filters are based on the frequency-response masking approach, where the masking filters are replaced by instances of the same model filter, but with different periodicity. By having identical subfilters, except for periodicity, it is possible to map all subfilters to a single hardware structure using...
متن کاملWaveform Design using Second Order Cone Programming in Radar Systems
Transmit waveform design is one of the most important problems in active sensing and communication systems. This problem, due to the complexity and non-convexity, has been always the main topic of many papers for the decades. However, still an optimal solution which guarantees a global minimum for this multi-variable optimization problem is not found. In this paper, we propose an attracting met...
متن کاملDesign of sharp FIR bandstop filters using quadrature masking filters
A novel computationally highly e cient realization of sharp symmetrical bandstop FIR lter is proposed. The new structure is derived using the frequency-response-masking technique, where the bandedge-shaping lter is derived from half-band lter by substituting each delay of the half-band lter by M delays. The masking lters are unconventional. They are quadrature lters derived from linear combinat...
متن کامل