NDLI: Dual apodization in the detection of a sinusoidal signal under the effect of interference

Content Provider	IEEE Xplore Digital Library
Author	Balci, B. Candan, C.
Copyright Year	2011
Description	Author affiliation: Aselsan, Turkey (Balci, B.) \|\| Elektrik ve Elektronik Mühendisliği Bölümü, Orta Doğu Teknik Üniversitesi, Turkey (Candan, C.)
Abstract	Presence of a sinusoidal interference signal can inhibit the detection of another sinusoidal signal because of its sidelobes. By the use of conventional window functions, sidelobes can be suppressed with the price of frequency resolution loss. Spatially variant apodization (SVA), which uses an infinite number of window functions, can reduce spectral leakage by preserving the frequency resolution of the unwindowed signal. Dual apodization (DA) is a simple version of SVA, in which only two window funtions are used. In this work SVA and DA methods are applied to the problem of detection of a sinusoidal signal under sinusoidal interference. The probability density function for DA output is presented and the theoretical threshold calculation is given. Detection performance comparisons between DA, SVA and conventional windows are given. By the help of the simulations, it is shown that SVA and DA methods outperform the conventional windows.
Starting Page	534
Ending Page	537
File Size	201975
Page Count	4
File Format	PDF
ISBN	9781457704628
e-ISBN	9781457704635
e-ISBN	9781457704611
DOI	10.1109/SIU.2011.5929705
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-04-20
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Conferences Discrete Fourier transforms Estimation Interference Signal resolution Signal to noise ratio
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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