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On the Requirement of Automatic Tuning Frequency Estimation [article]

Alexander Lerch, Technische Universität Berlin, Technische Universität Berlin
The deviation of the tuning frequency from the standard tuning frequency 440 Hz is evaluated for a database of classical music.  ...  It is discussed if and under what circumstances such a deviation may affect the robustness of pitch-based systems for musical content analysis.  ...  The symmetry of the distribution of the three accumulated energies gives an estimate on the deviation from the current tuning frequency compared to the assumption.  ... 
doi:10.14279/depositonce-2037 fatcat:h6a75vbwubg7xctuqz33khx3ze

A Fast Autotuning Method for Velocity Control of Mechatronic Systems

Marco Giacomelli, Davide Colombo, Luca Simoni, Giovanna Finzi, Antonio Visioli
2018 IFAC-PapersOnLine  
In this paper a fast automatic tuning methodology for velocity controllers of mechatronic systems is proposed.  ...  In order to be applicable in general, the method takes into account the position, velocity and torque constraints of the motion control system and it requires a minimum intervention of the operator.  ...  ACKNOWLEDGEMENTS This work has been developed within the European Union H2020 program ECSEL-2016-1 under grant agreement n. 737453 (I-MECH).  ... 
doi:10.1016/j.ifacol.2018.06.067 fatcat:ilksyw7ng5cu7lsa4mfetgw2pm

An all-digital phase-locked loop compiler with liberty timing files

Ching-Che Chung, Duo Sheng, Chen-Han Chen
2014 Technical Papers of 2014 International Symposium on VLSI Design, Automation and Test  
The proposed digitally controlled oscillator (DCO) frequency range estimation algorithm can accurately compute the frequency range of the DCO with only liberty timing files.  ...  The maximum frequency estimation error is smaller than 5.92% in 90nm or 65nm CMOS processes.  ...  ACKNOWLEDGMENT The authors would like to thank their colleagues in the Silicon Sensor and System (S3) Laboratory of National Chung Cheng University for many fruitful discussions.  ... 
doi:10.1109/vlsi-dat.2014.6834903 dblp:conf/vlsi-dat/ChungSC14 fatcat:22asuzwimjdjfcnoznvukzldne

Multivariable controller tuning

K.H. Johansson, B. James, G.F. Bryant, K.J. Astrom
1998 Proceedings of the 1998 American Control Conference. ACC (IEEE Cat. No.98CH36207)  
Several interpretations of this relation are given. An algorithm is also presented that estimates the model required for the tuning via a relay feedback experiment.  ...  The problem of tuning individual loops in a multivariable controller is investigated. It is shown how the performance of a specific loop relates to a row in the controller matrix.  ...  Several results on how a row in the controller matrix affects the closed-loop performance were derived. No fully automatic procedure was described in the sense of automatic tuning for SISO systems.  ... 
doi:10.1109/acc.1998.703258 fatcat:pwdgodc4njex3c6rcizhorvjxq

Robust Estimation and Automatic Controller Tuning in Vibration Control of Time Varying Harmonic Disturbances

Charles E. Kinney, Huazhen Fang, Raymond A. de Callafon, Marouane Alma
2011 IFAC Proceedings Volumes  
This paper presents theoretical and experimental results of a newly developed automatic controller tuning algorithm called Robust Estimation for Automatic Controller Tuning (REACT) to tune a linear feedback  ...  effectiveness of the algorithm for vibration isolation of periodic disturbances with unknown and varying frequencies.  ...  However, the requirements on maintaining closedloop stability in feedback control of periodic disturbances require model knowledge (Pipeleers et al., 2009) or limitations on the frequency contents of  ... 
doi:10.3182/20110828-6-it-1002.01676 fatcat:smh57qwxsfaetnndwmv7u6adkq

Automatic Tuning Method for PMSM using Big Data based Artificial Neural Network

Sari Maekawa
2021 IEEJ Journal of Industry Applications  
In such instances, trial and error tuning is required to obtain the desired characteristics.  ...  Methods based on linear analysis have been studied for stable control of permanent magnet synchronous motors; however, they are difficult to apply in the operating regions and under control conditions  ...  authors have conducted research on automatic tuning of control systems using big data of existing control designs (4) .  ... 
doi:10.1541/ieejjia.l21000741 fatcat:dh56qioddje7hgsq2sktab5mpa

Rule-based autotuning based on frequency domain identification

A.S. McCormack, K.R. Godfrey
1998 IEEE Transactions on Control Systems Technology  
The nonparametric open-loop frequency response function is estimated on-line (in closed loop), and simple discriminatory parameters are obtained, which enable appropriate tuning of the controller.  ...  A frequency domain procedure is proposed for the automatic tuning of proportional integral derivative (PID) controllers.  ...  The tuning rules require knowledge of either one or two points of the process frequency response.  ... 
doi:10.1109/87.654876 fatcat:xmjd7gjnefe7rfff56q5gjauji

The temperament police

D. Tidhar, S. Dixon, E. Benetos, T. Weyde
2014 Early Music  
He holds a BSc and MSc in Informatics and a PhD in automatic music transcription from Queen Mary University of London.  ...  Simon Dixon is a Reader in the School of Electronic Engineering and Computer Science at Queen Mary University of London.  ...  We then compute the frequency ratios of detected notes and their nominal frequencies (obtained using an initial estimate of the tuning frequency) to give a set of deviations from the estimated tuning frequency  ... 
doi:10.1093/em/cau101 fatcat:5mzpyotwtrgtlfcevriuqzyl2e

New Insights On Sintrack, A Real-Time Algorithm For Aircraft Structural-Modes Identification

Matthieu Jeanneau, Emilie Bastide, Nathalie Raimbault
2004 Zenodo  
Publication in the conference proceedings of EUSIPCO, Viena, Austria, 2004  ...  Estimation of frequencies and amplitudes is reliable in the first case, although one notices a short coupling between the frequencies of the two modes.  ...  As observed on the middle plots, frequencies are accurately estimated. Lower plots shows the good estimation of amplitudes as well, compared to the signal envelope of the upper plots.  ... 
doi:10.5281/zenodo.38162 fatcat:yom2j4ir5nanrh6a2hsmjhqmm4

Towards Computer-Assisted Flamenco Transcription: An Experimental Comparison of Automatic Transcription Algorithms as Applied to A Cappella Singing

Emilia Gómez, Jordi Bonada
2013 Computer Music Journal  
We first study the specifics of flamenco singing and propose a transcription system based on fundamental frequency and energy estimation, which incorporates an iterative strategy for note segmentation  ...  The proposed approach is evaluated on a music collection of 72 performances, including a variety of singers and recording conditions, and the presence or absence of percussion, background voices, and noise  ...  Acknowledgments The authors would like to thank the COFLA team for providing the data set and expertise in flamenco music.  ... 
doi:10.1162/comj_a_00180 fatcat:gjfiq6cvbjg5fdmqi6zjvtpjvm

Toward Automatic Tuning of the Piano

Joonas Tuovinen, Jamin Hu, Vesa Välimäki
2019 Proceedings of the SMC Conferences  
Kari Kääriäinen, Master Model Maker at Aalto Design Factory, for his generous advice on and fabrication of the custom parts of the aluminum frame.  ...  The algorithm calculates estimations for B and f 0 based on the frequencies of known partials, and finds new partials based on these estimations.  ...  These algorithms need rough estimations for the values of B and f 0 and make better ones based on the found partial frequencies.  ... 
doi:10.5281/zenodo.3249293 fatcat:vghrr54m2jd7ndg7fgb5pjbkey

A 92 fsrms jitter frequency synthesizer based on a multicore Class-C voltage-controlled oscillator with digital automatic amplitude control

Jiahao Chen, Haoming Li, Tengjia Wang, Zhiyu Wang, Hua Chen, Jiarui Liu, Faxin Yu
2021 IEICE Electronics Express  
A novel digital tail current estimation is adopted to mitigate the risks of unexpected VCO oscillation failure, due to current shortage during frequency calibration.  ...  This letter presents a frequency synthesizer based on a multicore Class-C voltage-controlled oscillator (VCO) with a digital automatic amplitude control (AAC) loop.  ...  The tail current estimation guarantees a definite and stable initial current needed in the automatic frequency calibration (AFC) process.  ... 
doi:10.1587/elex.18.20210136 fatcat:srb2hr6wzvfy7cqg3absy46j2m

A Fast Algebraic Estimator for System Parameter Estimation and Online Controller Tuning - A Nanopositioning Application

Andres San-Millan Rodriguez, S. Aphale, Vicente Feliu-Batlle
2018 IEEE transactions on industrial electronics (1982. Print)  
The parameter estimates are produced within a fraction of one period of the resonant mode frequency, allowing almost instantaneous tuning of controller parameters.  ...  This paper presents a method based on the frequency-domain algebraic derivative approach for the accurate online identification of the nanopositioner's parameters.  ...  These estimates can further be utilized to automatically tune a multitude of popular control schemes applied to nanopositioners.  ... 
doi:10.1109/tie.2018.2863206 fatcat:js3qnnmcpjdtbo5m5brxmwuecm


R. Gonzalez-Martin, I. López, F. Morilla, R. Pastor
2002 IFAC Proceedings Volumes  
The MISO calculated model enables a better tuning of the PID loop, both for the servo and regulatory cases.  ...  The tool is the major result of a joint industryuniversity development. The tool is being heavily used in all the refineries and some petrochemical complex of the REPSOL-YPF group.  ...  ACKNOWLEDGEMENTS The current version of Sintolab is the result of seven years of work.  ... 
doi:10.3182/20020721-6-es-1901.00917 fatcat:dzpsry3twjg3rpjszgjm7lg46a

A Log-Logistic Model-Based Interpretation of TF Normalization of BM25 [chapter]

Yuanhua Lv, ChengXiang Zhai
2012 Lecture Notes in Computer Science  
The proposed interpretation allows us to derive different approaches to estimation of parameter k1 based solely on the current collection without requiring any training data, thus effectively eliminating  ...  Our experiment results show that the proposed approaches can accurately predict the optimal k1 without requiring training data and achieve better or comparable retrieval performance to a well-tuned BM25  ...  Acknowledgments We thank the anonymous reviewers for their useful comments.  ... 
doi:10.1007/978-3-642-28997-2_21 fatcat:ukh5vihqw5e6vgg5ss5734oare
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