Design and Realization of Digital FIR Filter using Dolph-Chebysheb Window
نویسنده
چکیده
Abstract—In Digital Signal Processing, one of the most important filter type is the FIR filter which can be designed via various methods. Window technique is the most important technique that is used to design the FIR filter. Apart from various window techniques, Dolph-Chebyshev window has the subject of importance for the design of the FIR filter in efficient way. In this paper, the design methodology of the FIR filter using Dolph-Chebyshev window is shown along with the realization of filter and the designing algorithm. The designing program of the FIR filter is simulated in Matlab 7 which shows the satisfactory result. In this paper, the minimization of the side lobes using Dolph-Chebyshev window are shown and can easily be understood that the minimization in side lobes can increase the efficiency and decrease power consumption so that the FIR filter can work more efficiently. Keywords-FIR filter, Dolph-Chebyshev window, coefficients, impulse function, realization
منابع مشابه
Design And Performance of Finite impulse Response Filter Using Hyperbolic Cosine Window
In this paper a proposed of design and analysis of Finite impulse response filter using Hyperbolic Cosine window (Cosh window for short). This window is very useful for some applications such as beam forming, filter design, and speech processing. Digital FIR filter designed by Kaiser window has a better far-end stop-band attenuation than filter designed by the other previously well known adjust...
متن کاملDesign of IIR Digital Filter using Modified Chaotic Orthogonal Imperialist Competitive Algorithm (RESEARCH NOTE)
There are two types of digital filters including Infinite Impulse Response (IIR) and Finite Impulse Response (FIR). IIR filters attract more attention as they can decrease the filter order significantly compared to FIR filters. Owing to multi-modal error surface, simple powerful optimization techniques should be utilized in designing IIR digital filters to avoid local minimum. Imperialist compe...
متن کاملOn Prefilters for Digital FIR Filter Design
Absrruct -A new family of digital prefilter structures is introduced, based on the Dolph-Chebyshev function. These prefilters can be combined with appropriately designed “equalizer” filters based on equiripple methods, leading to efficient FIR digital filter designs. Design examples are included, demonstrating the simplicity of the resulting designs, as compared to conventional equiripple designs.
متن کاملDesign of FIR filter using hanning window, hamming window and modified hamming window
Digital filters are widely used in many digital signal processing applications. Therefore, digital filtering is one of the basic needs of digital signal processing. This paper introduces the definition and basic principles of FIR digital filters, and the design based on MATLAB.After the description of the process of design, the matlab program is used to implement FIR filter using modified coeff...
متن کاملDesign of Bandpass Finite Impulse Response Filter Using Various Window Method
In the digital signal processing, digital filtering occupies an extremely important position. This paper introduces the definition and basic principles of FIR digital filters, and the design methods based on MATLAB. After the description of the process of design and simulation of a FIR band-pass filter by means of window function method, the results prove that various performance of the designe...
متن کامل