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Ternary input signal design for system identification
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Barker, H. A., Tan, A. H. and Godfrey, K. R. (2007) Ternary input signal design for system identification. IET Control Theory and Applications, Vol.1 (No.5). pp. 1224-1233. doi:10.1049/iet-cta:20060292 ISSN 1751-8644.
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Official URL: http://dx.doi.org/10.1049/iet-cta:20060292
Abstract
Methods for designing two types of periodic ternary input signal used to identify a system in the presence of both noise and nonlinear distortions have been described here. Signals of the first type have even harmonics suppressed, to eliminate errors in odd-order estimates from even-order distortions, and vice-versa. Signals of the second type have harmonic multiples of both two and three suppressed, to further reduce errors from nonlinear distortions. For both types of signal, three design criteria are defined. The first criterion allows the signal energy-amplitude ratio to be maximised, the second allows the signal spectrum uniformity to be maximised and the third allows a compromise to be made between the first two criteria. With the methods described, ternary signals of both types with a very wide range of periods can be obtained for use in this application. Software for computer-aided design of the signals is available on the internet. The signals and their periods are given in tables, and an example is used to show how they are applied.
Item Type: | Journal Article | ||||
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Subjects: | T Technology > TL Motor vehicles. Aeronautics. Astronautics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Journal or Publication Title: | IET Control Theory and Applications | ||||
Publisher: | Institution of Engineering and Technology | ||||
ISSN: | 1751-8644 | ||||
Official Date: | September 2007 | ||||
Dates: |
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Volume: | Vol.1 | ||||
Number: | No.5 | ||||
Number of Pages: | 10 | ||||
Page Range: | pp. 1224-1233 | ||||
DOI: | 10.1049/iet-cta:20060292 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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