Performance comparison of two channel CMFB and QMF bank designed via ABC algorithm

Ozdemir, Gokcen; Karaboğa, Nurhan; Koza, Turker

doi:10.1109/siu.2017.7960422

Cited by 8 publications

(3 citation statements)

References 4 publications

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“…Tasarlanan süzgeç bankalarının performans değerleri farklı tasarım örnekleri için ayrı ayrı irdelenerek, tablolar halinde detaylı bir biçimde sunulmuş, elde edilen sonuçlar birbirleriyle karşılaştırılmıştır. Literatürde 2 kanaldan M kanala kadar çeşitli kanal sayılarına sahip tasarımlar mevcuttur [14][15][16]. Ayrıca pencere fonksiyonlarının hibrit kullanımına yönelik yapılar da bulunmaktadır [17,18].…”

Section: Sonuçlar Ve Tartişmalar (Results and Discussion)unclassified

Düzgün kosinüs modüleli süzgeç bankaları –pencere fonksiyonu tabanlı yeni bir kaskat yöntem

Ozdemir

Karaboğa

2019

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi

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Highlights:Graphical/Tabular Abstract  Cosine modulated filter bank design.  Cascade method.  Investigation of the effects of filter order on the filter bank design.  ECG signal application.In this study, a new cosine modulated filter bank design is proposed by using window functions. The prototype filter of the filter bank is designed with cascade use of the Gaussian window function and Kaiser window function in the proposed method. The filter bank designed using proposed prototype filter and discrete cosine transform is analyzed for four different number of channels and different filter lengths. The proposed method is compared with the designs using Kaiser and Gaussian window functions. According to the results, it is seen that the proposed method gave better results than the others in terms of peak reconstruction error. It is shown that the proposed prototype filter has better stop band attenuation values than the compared ones in the literature. At the end of the study, the application of two filter banks with different channel numbers for the proposed method in the ECG signal is given. Cascade Method Window Function1 Window Function 2 Prototype Filter Filter Bank Design ECG signal Application Figure A. Stages of the proposed study.Purpose: The aim of the study is to design a high performance prototype filter for the cosine modulated filter banks. Optimizing the prototype filter means optimization of the filter bank. Theory and Methods:In this study, window functions are used to design the filter bank. One of the easiest and most efficient way to design a digital filter is using window functions. There are lots of window functions proposed by different researchers in the literature. Some window functions, called adjustable window functions, have adjustable parameters that allow selection of desired ripple and attenuation parameters. In this study, Kaiser and Gaussian windows are chosen as the adjustable window functions to design the cosine modulated filter bank due to their advantages in the application. The prototype filter of proposed method is obtained by cascading the Kaiser and Gaussian windows. The uniform filter bank is performed using the proposed prototype filter. Results:The performance of the proposed method is compared with the filter banks designed with a single window function as well as with some other studies in the literature. According to the results, it has seen that the proposed method gave better results than the others in terms of peak reconstruction error and stopband attenuation. Finally, an ECG (Electrocardiography) signal application is included to the study to evaluate the performance of the proposed filter bank in terms of amplitude distortion and correlation. Conclusion:It has been shown that the proposed prototype filter has better performance values than the compared ones in the literature. At the end of the study, the ECG signal application of the two filter banks which have different channel numbers is given. For the same filter order, the correlation is increased related...

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Section: Sonuçlar Ve Tartişmalar (Results and Discussion)unclassified

Düzgün kosinüs modüleli süzgeç bankaları –pencere fonksiyonu tabanlı yeni bir kaskat yöntem

Ozdemir

Karaboğa

2019

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi

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“…Synthesis and analysis banks for the filter banks obtained by modulation of a produced prototype filter with an appropriate cosine function are obtained as given below for the M channel [22]. There are studies for filter bank design using meta-heuristic algorithms conducted with GA [23][24][25][26][27]; Evolutionary Algorithm (EA) [28], PSO [29][30][31]; Quantum Behaved PSO [32]; ABC [26,27,30,33,34]; HS [26,27]; Hybrid ABC-HA [26]; Hybrid GSA-ABC [26]; Hybrid GSA-HSA [26], Hybrid PSO-ABC [35]; Cuckoo Search Algorithm (CSA) [30] in the literature.…”

Section: Introductionmentioning

confidence: 99%

Complex Exponential Modulated Quadrature Filter Bank Design Based on Chaos Game Optimization Algorithm

Karakaş,

Latifoğlu

2023

EJRnD

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The design approach presented in this paper uses a new metaheuristic method Chaos Game Optimization (CGO) to design a 2-channel quadrature mirror filter (QMF) banks. For this study, finite impulse response (FIR) low-pass prototype filter coefficients are optimized to minimize the cost function. The cost function is formulated as the sum of four terms: the square sum of the errors between this estimated frequency response and the ideal filter response, passband ripple, stopband ripple, and stopband edge frequency error. These parameters are important components of FIR filter prototype design that are often used alone in many studies. To obtain a QMF bank prototype filter, prototype filter modulated with an appropriate complex exponential signal. The produced design results of the proposed method like performance parameters, frequency responses of prototype filters and QMF bank results are presented and compared with earlier reported results. The results show that the presented study has significant improvement in the performance parameters of QMF banks and prototype filter.

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“…Yine QMF bankası tasarımlarında son yıllarda sezgisel tekniklerde etkin bir şekilde araştırmacılar tarafından kullanılmaya başlanmıştır. DE (Differantial Evolution-Farksal Gelişim), PSO (Particle Swarm Optimizationparçacık sürü optimizasyonu) algoritması bu uygulamalara örnek olarak gösterilebilir [23]- [26]. Bu çalışmalarda, süzgeç bankası tasarımında kullanılan prototip süzgeç parametreleri, sezgisel algoritmalarla elde edilmiştir.…”

Section: Introductionunclassified

Investigation of the performance of the Kaiser-Hamming window in design of QMF bank

Kamislioglu¹,

Karaboğa²

2019

Pamukkale J Eng Sci

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Son yıllarda hızlı sayısal süzgeçler ve süzgeç bankalarında önemli gelişmeler olmuştur. Çoklu hıza sahip süzgeç bankalarının bir uygulaması olarak bilinen QMF (Çeyrek Ayna Süzgeç-Quadrature Mirror Filter) bankası alt bant kodlama, görüntü sıkıştırma, kelime kodlama, biyomedikal sinyal işleme ve haberleşme sistemlerinde yaygın olarak kullanılmaktadır. Bu çalışmada; QMF bankası tasarımında istenilmeyen salınımları ortadan kaldırmak için Kaiser ve Hamming pencerelerinin kaskat bağlanması ile elde edilen pencere fonksiyonu kullanılarak tasarlanan prototip FIR (Finite Impulse Response-Sonlu dürtü tepkili) süzgeçle QMF bankası tasarımı gerçekleştirilmiştir. Farklı pencere fonksiyonları ile tasarlanan süzgeçlerde süzgecin derecesinin performansı nasıl değiştirdiği incelenmiş ve sonuçta daha yüksek durdurma bandı zayıflaması sergileyen Kaiser-Hamming penceresinin QMF bankası tasarımında kullanılabileceği sonucuna varılmıştır. In recent years, significant improvements have been in fast digital filters and filter banks. QMF (Quadrature Mirror Filter) bank, known as an application of multi-speed filter banks are widely used sub-band coding, image compression, word coding, biomedical signal processing and communication systems. In this study; QMF bank design is realized via a windowing method with prototype FIR (Finite Impulse Response) filter design and based on cascade bounded Kaiser and Hamming windows for eliminating undesired oscillations in QMF bank design. It has been investigated how the performance changed of the filter degree in designing filter with different window functions and at the result it is shown that Kaiser-Hamming window with lower stopband attenuation could be used in QMF bank design.

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Performance comparison of two channel CMFB and QMF bank designed via ABC algorithm

Cited by 8 publications

References 4 publications

Düzgün kosinüs modüleli süzgeç bankaları –pencere fonksiyonu tabanlı yeni bir kaskat yöntem

Düzgün kosinüs modüleli süzgeç bankaları –pencere fonksiyonu tabanlı yeni bir kaskat yöntem

Complex Exponential Modulated Quadrature Filter Bank Design Based on Chaos Game Optimization Algorithm

Investigation of the performance of the Kaiser-Hamming window in design of QMF bank

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