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Performance evaluation of control algorithms implemented on a remotely controlled active noise control laboratory
Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, Avdelningen för elektroteknik.
BTH.
Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, Avdelningen för elektroteknik.
Visa övriga samt affilieringar
2013 (Engelska)Ingår i: Active Noise and Vibration Control in Practical System Implementations, 2013, artikel-id 731Konferensbidrag, Publicerat paper (Övrigt vetenskapligt)
Abstract [en]

The remotely controlled laboratory setup for Active Noise Control (ANC) developed by Blekin-ge Institute of Technology, Sweden provides an efficient learning platform for the students to implement and learn ANC algorithms with real world physical system, hardware and signals. The initial laboratory prototype based on a Digital Signal Processor (DSP) TMS320C6713 from Texas Instruments (TI) was successfully tested with Filtered-x Least Mean Square (F-XLMS) algorithm applied to control noise in a ventilation duct. The resources of the DSP platform used in the remote laboratory setup enable testing and investigating substantially more challenging and computationally demanding algorithms. In this paper, we expand the horizon of the laboratory setup by testing more advanced and complicated single channel feed forward ANC algorithms. Filtered-x versions of algorithms such as the normalized least mean square (N-LMS), leaky least mean square (L-LMS), Filtered-U recursive least mean square (FURLMS) and recursive least square (RLS) algorithm etc. have been implemented utilizing the remote web based client provided in the remote laboratory. A comprehensive performance comparison of the aforementioned algorithms for the remote laboratory setup is presented to demonstrate the viability of the remote laboratory.

Ort, förlag, år, upplaga, sidor
2013. artikel-id 731
Nationell ämneskategori
Signalbehandling
Identifikatorer
URN: urn:nbn:se:bth-13809OAI: oai:DiVA.org:bth-13809DiVA, id: diva2:1067619
Konferens
The 20th International Congress on Sound and Vibration (ICSV20).
Tillgänglig från: 2017-01-22 Skapad: 2017-01-22 Senast uppdaterad: 2018-05-22Bibliografiskt granskad
Ingår i avhandling
1. Measurements, Analysis Techniques and Experiments in Sound and Vibration: Applied to Operational MRI Scanners and in Remote Laboratories.
Öppna denna publikation i ny flik eller fönster >>Measurements, Analysis Techniques and Experiments in Sound and Vibration: Applied to Operational MRI Scanners and in Remote Laboratories.
2017 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

High quality noise and vibration measurements outside of a laboratory environment on real life structures and applications are not trivial. True boundary and operating conditions enforce unique challenges on the measurements. Measurements in hazardous situations such as high magnetic fields, and high temperature environments, etc., where ordinary measurement equipment and methods may not be employed, require further precautions. Post measurements objectives such as analysis, design and strategic decisions, e.g., control, rely heavily on the quality and integrity of the measurements (data).

The quality of the experimental data is highly correlated with the on-field expertise. Practical or hands-on experience with measurements can be imparted to prospective students, researchers and technicians in the form of laboratory experiments involving real equipment and practical applications. However, achieving expertise in the field of sound and vibration measurements in general and their active control in particular is a time consuming and expensive process. Consequently most institutions can only afford a single setup, resulting in the compromise of the quality of expertise.

In this thesis, the challenges in the field of sound and vibration measurements in high magnetic field are addressed. The analysis and measurement of vibration transferred from an operational magnetic resonance imaging (MRI) scanner to adjacent floors is taken as an example. Improvised experimental measurement methods and custom-made frequency analysis techniques are proposed in order to address the challenges and study the vibration transfer. The methods may be extended to other operational industrial machinery and hazardous environments. To encourage and develop expertise in the field of acoustic/vibration measurements and active noise control on practical test beds, remotely controlled laboratory setups are introduced. The developed laboratory setup, which is accessed and controlled via the Internet, is the first of its kind in the active noise control and acoustic measurements area. The laboratory setup can be shared and utilized 24/7 globally, thus reducing the associated costs and eliminating time restrictions.

Ort, förlag, år, upplaga, sidor
Karlskrona: Blekinge Tekniska Högskola, 2017. s. 251
Serie
Blekinge Institute of Technology Doctoral Dissertation Series, ISSN 1653-2090 ; 3
Nyckelord
Active Noise Control, Remote Laboratories, Sound and Vibration Measurements, Vibration Analysis, Vibration Transmission
Nationell ämneskategori
Signalbehandling
Identifikatorer
urn:nbn:se:bth-13821 (URN)978-91-7295-336-9 (ISBN)
Disputation
2017-02-22, 10:00 (Engelska)
Opponent
Handledare
Tillgänglig från: 2017-02-01 Skapad: 2017-01-24 Senast uppdaterad: 2017-10-25Bibliografiskt granskad

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Khan, ImranJohansson, SvenHåkansson, Lars

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