Envelope constrained filter with linear interpolator

Ba Ngu Vo, Antonio Cantoni, Kok Lay Teo

Research output: Contribution to journalArticle

16 Citations (Scopus)


The envelope constrained (EC) filtering problem is the minimization of the noise gain of the filter while satisfying the constraint that its noiseless response to a specified input lies within a prescribed envelope. Using a hybrid filter consisting of an A/D converter, an FIR filter, and a linear interpolator, the problem is posed as a functional inequality constrained optimization problem. A technique for solving this problem is proposed by approximating it with a conventional unconstrained optimization problem that is then solved by a descent directionbased algorithm.

Original languageEnglish
Pages (from-to)1405-1414
Number of pages10
JournalIEEE Transactions on Signal Processing
Issue number6
Publication statusPublished - 1 Dec 1997
Externally publishedYes

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