A new discrete analytic signal for reducing aliasing in the discrete Wigner-Ville distribution

John M. O'Toole*, Mostefa Mesbah, Boualem Boashash

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةمراجعة النظراء

26 الاقتباسات (SciVal)

ملخص

It is not possible to generate an alias-free discrete Wigner-Ville distribution (DWVD) from a discrete analytic signal. This is because the discrete analytic signal must satisfy two mutually exclusive constraints. We present, in this paper, a new discrete analytic signal that improves on the commonly used discrete analytic signal's approximation of these two constraints. Our analysis shows that - relative to the commonly used signal - the proposed signal reduces aliasing in the DWVD by approximately 50%. Furthermore, the proposed signal has a simple implementation and satisfies two important properties, namely, that its real component is equal to the original real signal and that its real and imaginary components are orthogonal.

اللغة الأصليةEnglish
الصفحات (من إلى)5427-5434
عدد الصفحات8
دوريةIEEE Transactions on Signal Processing
مستوى الصوت56
رقم الإصدار11
المعرِّفات الرقمية للأشياء
حالة النشرPublished - 2008
منشور خارجيًانعم

ASJC Scopus subject areas

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