International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, Nevada / The drive towards higher accuracy and sampling rates has raised the bar for modern FTI signal
conditioning. This paper focuses on the issue of anti-alias filtering. Today's 16-bit (and greater
resolution) ADC’s, coupled with the drive for optimum sampling rates, means that filters have to be
more accurate and yet more flexible than ever before. However, in order to take full advantage of
these advances, it is important to understand the trade-offs involved and to correctly specify the
system filtering requirements.
Trade-offs focus on:
• Analog vs. Digital signal conditioning
• FIR vs. IIR Digital Filters
• Signal bandwidth vs. Sampling rate
• Coherency issues such as filter phase distortion vs. delay
This paper will discuss each of these aspects. In particular, it will focus on some of the advantages
of digital filtering various analog filter techniques. This paper will also look at some ideas for
specifying filter cut-off and characteristics.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/605378 |
| Date | 10 1900 |
| Creators | Sweeney, Paul |
| Contributors | ACRA CONTROL |
| Publisher | International Foundation for Telemetering |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | English |
| Type | text, Proceedings |
| Rights | Copyright © International Foundation for Telemetering |
| Relation | http://www.telemetry.org/ |
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