Universiti Teknologi Malaysia Institutional Repository

Comparison between the performance of spectrogram and multi-window spectrogram in digital modulated communication signals

Tan Jo, Lynn and Sha'ameri, Ahmad Zuri (2007) Comparison between the performance of spectrogram and multi-window spectrogram in digital modulated communication signals. In: Proceeding of the 2007 IEEE International Conference on Telecomunication and Malaysia International Conference on Communication, 14th-17th May 2007, Penang,Malaysia.

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Official URL: http://dx.doi.org/10.1109/ICTMICC.2007.4448613

Abstract

In this paper,we compare the performance of spectrogram and new variation of multi-windows(WM)spectrogram for various digital modulated signals.The windows used in the MW spectrogram are conbination of Slepian sequences instead of using all the sequences.The comparison in the time-frequency representation is made in terms of main-lobe width(WLM)and peak to side-lobe ratio(PSLR)of the signals used.In the presence of noise,performance is compared in terms of variance in the estimated from the instantaneous frequency.Bit duration and frequency are estimated from the time-frequency the instantaneous frequency(IF),which is derived from the time-frequency representation.The bias in the estimated bit duration is also calculated to compare the performance between spectrogram and WM spectrogram. In general,the time-frequency representation for the spectrogram is better than WM spectrogram.However,WM spectrogram is superior to spectrogram in terms of bit duration estimation.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Digital modulation signals, multi-window spectrogram, slepian squence
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:7142
Deposited By: Maznira Sylvia Azra Mansor
Deposited On:02 Jan 2009 02:44
Last Modified:01 Jun 2010 15:49

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