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Design and Comparison of Butterworth and Chebyshev Type-1 Low Pass Filter Using Matlab


Affiliations
1 Institute of Engineering & Technology, Bundelkhand University, Jhansi, India
 

In the communication system, signals are analogous to carriers of information, be it useful or unwanted. Hence it becomes essential to extract or enhance the useful information and remove any redundancy from a mix of conflicting information. This is the simplest aim of signal processing. The objective of this paper is to know characteristics of each filter for a particular frequency specification- Butterworth low-pass and Chebyshev type-1 low-pass filter and to know how these filters compare. The main concentration being on the magnitude response. An ideal low pass filter has a gain of one in the pass band, zero outside that region. In this paper we compare a Butterworth low pass filter and a Chebyshev type-I low pass filter designed using MATLAB codes which gives the magnitude and phase responses of each of the filters.
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  • Design and Comparison of Butterworth and Chebyshev Type-1 Low Pass Filter Using Matlab

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Authors

Tushar Malica
Institute of Engineering & Technology, Bundelkhand University, Jhansi, India
Singdha Shekhar
Institute of Engineering & Technology, Bundelkhand University, Jhansi, India
Zakir Ali
Institute of Engineering & Technology, Bundelkhand University, Jhansi, India

Abstract


In the communication system, signals are analogous to carriers of information, be it useful or unwanted. Hence it becomes essential to extract or enhance the useful information and remove any redundancy from a mix of conflicting information. This is the simplest aim of signal processing. The objective of this paper is to know characteristics of each filter for a particular frequency specification- Butterworth low-pass and Chebyshev type-1 low-pass filter and to know how these filters compare. The main concentration being on the magnitude response. An ideal low pass filter has a gain of one in the pass band, zero outside that region. In this paper we compare a Butterworth low pass filter and a Chebyshev type-I low pass filter designed using MATLAB codes which gives the magnitude and phase responses of each of the filters.