ANALYSIS OF MODIFIED COSH WINDOW FUNCTION AND PERFORMANCE EVALUATION OF THE FIR FILTER DESIGNED USING WINDOWING TECHNIQUES
Journal Title: INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY - Year 2012, Vol 3, Issue 2
Abstract
Filters are used in electronic circuits to remove the unwanted frequency components from desired signals. A digital filter basically provide high attenuation to the unwanted ones and offer very low or ideally zero attenuation to desired signal components when it’s impulse response is adjusted as per requirement. For ideal filters, the length of such an impulse response is infinite and also the filter will be non-causal and unrealizable. So, we need to truncate this infinite impulse response to make it finite. For this truncation, we use window functions. Using window functions, we obtain a finite impulse response or simply FIR filter. The shape of a window in time domain decides the characteristics of resultant filter in frequency domain. Several window functions are available in literature. For the present work we have choosen the three parameter Cosh window for truncation of infinite impulse response. It is also called as modified Cosh window because it has been obtained by inserting a third parameter in the basic 2-parameter Cosh window function. The main goal of this work is to study this modified Cosh window and design a digital low pass FIR filter using the same in MATLAB. First of all the properties of window function are described and frequeny domain responses of window function is obtained. Then FIR filter is analyzed using window design method and it’s characteristics have also been studied in frequency domain.
Authors and Affiliations
Avinash Mehta, Munish Verma, Vijay K. Lamba, Susheel Kumar, Sandeep Kumar
Keywords
Related Articles
- EP ID EP649945
- DOI 10.24297/ijct.v3i2c.2893
- Views 183
- Downloads 0
A Mobile Technology for Hazard Management System
The Japan is one of the countries in the world vulnerable to natural hazards because of its geographic location. Due to the advances of Internet and mobile technologies, mobile phones with Internet connection and computa...
Integration of GPS with Digital devices and Interactive objects for public safety.
Abstract: The paper demonstrated the role of GPS technology in law enforcement and public safety application areas. It presents the design, implem...
A new Approach for Obtaining Optimal Solution of Unbalanced Fuzzy Transportation Problem
The present paper attempts to study the unbalanced fuzzy transportation problem so as to minimize the transportationcost of products when supply, demand and cost of the products are represented by fuzzy numbers. In this...
To Control Electrical MCBs using Hand Gesture Recognition
There has been growing interest in development of new techniques and methods for Human-Computer Interaction (HCI). Gesture Recognition is one of the important areas of this technology. Gesture Recognition means interfaci...
A Novel SLM based PAPR reduction Technique in OFDM-MIMO System
Orthogonal Frequency Division Multiplexing (OFDM) is annew method for fourth generation wireless communication.MIMO-OFDM has become a promising candidate for highperformance 4G broadband wireless communications.However,...