Two-Channel Linear-Phase FIR Filter Banks Utilizing the Frequency Response Masking Approach
نویسندگان
چکیده
The frequency-response masking (FRM) approach was introduced as a means of generating narrow transition band linear-phase FIR filters with a low arithmetic complexity. This paper proposes an approach for synthesizing two-channel maximally decimated FIR filter banks utilizing the FRM technique. Compared to conventional quadrature-mirror filter (QMF) banks, the proposed banks lower significantly the overall arithmetic complexity at the expense of a somewhat increased overall filter bank delay in applications demanding narrow transition bands. Examples are included illustrating the benefits provided by the proposed filter banks.
منابع مشابه
Modulated M-Channel FIR Filter Banks Utilizing the Frequency Response Masking Approach
The frequency-response masking (FRM) approach was introduced as a means of generating narrow transition band linear-phase FIR filters with a low arithmetic complexity. This paper proposes an approach for synthesizing modulated maximally decimated FIR filter banks utilizing the FRM technique. For this purpose, a new class of FRM filters is introduced. Filters belonging to this class are used for...
متن کاملAn Approach for Synthesis of Modulated M-Channel FIR Filter Banks Utilizing the Frequency-Response Masking Technique
The frequency-response masking (FRM) technique was introduced as a means of generating linear-phase FIR filters with narrow transition band and low arithmetic complexity. This paper proposes an approach for synthesizingmodulatedmaximally decimated FIR filter banks (FBs) utilizing the FRM technique. A new tailored class of FRM filters is introduced and used for synthesizing nonlinear-phase analy...
متن کاملTwo-Channel FIR Filter Banks Based on the Frequency-Response Masking Approach
Abstract – This paper introduces two-channel FIR filter banks synthesized using the frequencyresponse masking approach. The proposed filter banks have a lower computational complexity compared with conventional filter banks, especially when the individual filters have narrow transition bands. One price to pay is a somewhat increased overall delay. A design example is included illustrating the e...
متن کاملAdvanced Asymmetric Filter Bank Based ADC for Software Defined Radio Applications Utilizing Frequency-Response Masking (FRM) Approach
-This paper introduces two-channel FIR filter bank based analog-to-digital converter (ADC) for software-defined radio (SDR) applications. The synthesis filter bank is synthesized using frequency-response masking (FRM) approach. In FRM, the structure is composed of a model filter, its complementary filter, and two masking filters. The FRM was introduced as the means of generating narrow transiti...
متن کاملEfficient implementation for cosine-modulated filter banks using the frequency response masking approach
Frequency-response masking (FRM) approach is a very efficient method for designing linear-phase FIR digital filters with general passbands and sharp transition bands. The FRM approach has recently been adapted to design cosine-modulated filter banks (CMFB). The resulting structure is a two-stage filter formed by the polyphase decomposition of the base filter in cascade with the decomposition of...
متن کامل