Frequency domain design for digital Laguerre networks

Hai Huyen Dam, Sven Nordebo, Antonio Cantoni, Kok Lay Teo

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The design of digital Laguerre networks with a complex desired frequency response and the Chebyshev error criterion is investigated. This nonlinear optimization problem in the complex domain can be converted to an equivalent semi-infinite linear programming problem. Additional constraints are introduced to control the group delay error (i.e., allowing approximate rather than exact linear phase). The Laguerre network with approximately linear phase in the passband can achieve the same desired specification as the conventional FIR filters with a smaller number of coefficients, especially for narrow-band specifications.

Original languageEnglish
Pages (from-to)578-581
Number of pages4
JournalIEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications
Issue number4
Publication statusPublished - 3 Dec 2000
Externally publishedYes

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