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A Time Correlated Approach to Adaptable Digital Filtering

ITC/USA 2006 Conference Proceedings / The Forty-Second Annual International Telemetering Conference and Technical Exhibition / October 23-26, 2006 / Town and Country Resort & Convention Center, San Diego, California / Signal conditioning is a critical element in all data telemetry systems. Data from all sensors
must be band limited prior to digitization and transmission to prevent the potentially
disastrous effects of aliasing. While the 6th order analog low-pass Butterworth filter has long
been the de facto standard for data channel filtering, advances in digital signal processing
techniques now provide a potentially better alternative.
This paper describes the challenges in developing a flexible approach to adaptable data
channel filtering using DSP techniques. Factors such as anti-alias filter requirements, time
correlated sampling, decimation and filter delays will be discussed. Also discussed will be
the implementation and relative merits and drawbacks of various symmetrical FIR and IIR
filters. The discussion will be presented from an intuitive and practical perspective as much
as possible.

Identiferoai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/604156
Date10 1900
CreatorsGrossman, Hy, Pellarin, Steve
ContributorsTeletronics Technology Corporation
PublisherInternational Foundation for Telemetering
Source SetsUniversity of Arizona
Languageen_US
Detected LanguageEnglish
Typetext, Proceedings
RightsCopyright © International Foundation for Telemetering
Relationhttp://www.telemetry.org/

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