Syllabic-companding log domain filters

Frey, D; Tsividis, YP; Efthivoulidis, G; Krishnapura, N

dc.contributor.author	Frey, D	en
dc.contributor.author	Tsividis, YP	en
dc.contributor.author	Efthivoulidis, G	en
dc.contributor.author	Krishnapura, N	en
dc.date.accessioned	2014-03-01T01:17:12Z
dc.date.available	2014-03-01T01:17:12Z
dc.date.issued	2001	en
dc.identifier.issn	1057-7130	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14389
dc.subject	Analog filters	en
dc.subject	Companding	en
dc.subject	Log domain filters	en
dc.subject	System theory	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.other	Dolby system	en
dc.subject.other	Filter equations	en
dc.subject.other	First-order circuit design	en
dc.subject.other	Log domain filter	en
dc.subject.other	Second-order circuit design	en
dc.subject.other	Translinear technique	en
dc.subject.other	Amplification	en
dc.subject.other	Bandpass filters	en
dc.subject.other	Computer simulation	en
dc.subject.other	Electric network synthesis	en
dc.subject.other	Frequency response	en
dc.subject.other	Mathematical models	en
dc.subject.other	Parameter estimation	en
dc.subject.other	Signal to noise ratio	en
dc.subject.other	State space methods	en
dc.subject.other	Digital filters	en
dc.title	Syllabic-companding log domain filters	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/82.933791	en
heal.identifier.secondary	http://dx.doi.org/10.1109/82.933791	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	A general theory for companding log domain filters is proposed which combines not only exponential mappings, but also a new translational mapping approach which guarantees suitable operating conditions in any log domain filter. The filter equations resulting from the use of the theory ultimately contain translinear terms which are known to be realizable using translinear techniques. A discussion of the design of the companding filters, regarding the economical use of translinear loops and the convenient selection of system parameters, is offered which leads to first- and second-order circuit designs. Finally, the noise performance of an example design is investigated using a carefully crafted large-signal simulation technique, showing clearly the advantage of the companding filter approach.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing	en
dc.identifier.doi	10.1109/82.933791	en
dc.identifier.isi	ISI:000169927000001	en
dc.identifier.volume	48	en
dc.identifier.issue	4	en
dc.identifier.spage	329	en
dc.identifier.epage	339	en