By Topic

Cosine Hyperbolic Window Family with its Application to FIR Filter Design

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Kemal Avci ; Department of Electrical and Electronics Engineering, University of Gaziantep, Gaziantep, Turkey. ; Arif Nacaroglu

In this paper a new class of adjustable window functions based on cosine hyperbolic function is proposed. The proposed window, namely cosh window for short, has been derived in the same way of the derivation of Kaiser window but it has the advantage of having no power series expansion in its time domain function. The spectral characteristic of cosh window is studied, and its performance is compared with Kaiser window in terms of the ripple ratio and sidelobe roll-off ratio for the same window length and normalized mainlobe width. Simulation results show that cosh window provides better sidelobe roll- off characteristic which may be useful for some applications such as filter design and beamforming. It is also shown that the combination of the proposed window with Hamming window can perform better ripple ratio compared to Kaiser window and its combination with Hamming window. The last spectrum comparison of the proposed window is performed with ultraspherical window for the same window length, mainlobe width and sidelobe rol-off ratio, and the results show that the proposed window performs better ripple ratio than 3-parameter ultraspherical window for wider mainlobe width and larger sidelobe roll-off ratio. Moreover, the paper presents the application of the proposed window in the area of FIR filter design. The filter design equations for cosh window to meet the given lowpass filter specification are established, and the comparison with Kaiser window is performed. The results show that the filters designed by cosh window provide better far end stopband attenuation than the filters designed by Kaiser window.

Published in:

Information and Communication Technologies: From Theory to Applications, 2008. ICTTA 2008. 3rd International Conference on

Date of Conference:

7-11 April 2008