Bispectral reconstruction of signals in noise: amplitude reconstruction issues

Show simple item record Sundaramoorthy, Gopal en_US Raghuveer, M.R. en_US Dianat, Sohail en_US 2006-12-18T17:27:28Z en_US 2006-12-18T17:27:28Z en_US 1990-07 en_US
dc.identifier.citation IEEE Transactions on Acoustics Speech and Signal Processing 38N7 (1990) 1297-1306 en_US
dc.identifier.issn 0096-3518 en_US
dc.identifier.uri en_US
dc.description Original source of PDF file: en_US
dc.description.abstract When we have observations of a discrete deterministic signal (physical object) in colored Gaussian noise, it is possible to obtain asymptotically unbiased estimates of the bispectrum of the signal only at frequency pairs (al, w2) which do not satisfy any of the following: wI = 0, w2 = 0, and o1 + w2 = 0. Several approaches reported in the literature that deal with magnitude reconstruction from bispectra use bispectrum samples that lie on one of these three straight lines, thus using samples which are biased due to noise. We propose two approaches that rectify this situation. The paper also discusses some of the tradeoffs involved in using bispectrum based reconstruction approaches vis-&vis other techniques. Applications to several types of problems are discussed (Refer to PDF file for exact formulas). en_US
dc.format.extent 990350 bytes en_US
dc.format.mimetype application/pdf en_US
dc.language.iso en_US en_US
dc.publisher Institute of Electrical and Electronics Engineers (IEEE) en_US
dc.relation RIT Scholars content from RIT Digital Media Library has moved from to RIT Scholar Works, please update your feeds & links!
dc.relation.ispartofseries vol. 38 en_US
dc.relation.ispartofseries no. 7 en_US
dc.subject Amplitude reconstruction en_US
dc.subject Bispectral signal reconstruction en_US
dc.subject Bispectrum en_US
dc.subject Bispectrum-based reconstruction en_US
dc.subject Deterministic signals en_US
dc.subject Interference (signal) en_US
dc.subject Noisy observations en_US
dc.subject Signal processing en_US
dc.subject Spectral analysis en_US
dc.title Bispectral reconstruction of signals in noise: amplitude reconstruction issues en_US
dc.type Article en_US

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