System Identification and Optimal Estimation SCE2206
Læringsutbytte
A candidate who has passed the course will have a learning outcome in the form of acquired knowledge, skills, and general competence, as described below[1].
Knowledge
The candidate will:
- Understand how realization theory based on impulse response and Hankel matrices is used to define state space model realizations for Multiple Input and Multiple Output (MIMO) systems.
- Understand how regression methods as the Ordinary Least squares (OLS) method and the Principal Component Regression (PCR) method may be used to estimate parameters from over-determined systems of equations
- Understand how state space models for autonomeous systems, deterministic systems, stochastic systems and combined deterministic and stochastic systems may be identified from known input and output discrete time series, using direct linear algebra and subspace based methods for system identification.
- Understand how observer and optimal estimation methods, e.g. the Kalman filter, may be used to construct an optimal state estimator as well as an optimal prediction of the system output, and how the optimal output prediction is a function of the adequate system parameters.
- Understand how optimisation based Prediction Error Methods (PEM) may be used to identify state space models for MIMO systems, from known input and output data
Skills
The candidate will :
- Be able to analyze and realize state space models for MIMO systems from known impulse response matrices
- Be able to estimate parameters using the OLS and PCR methods
- Be able to identify state space models for general combined deterministic and stochastic MIMO systems from known input and output data
- Be able to design optimal estimation methods, e.g. details about the Kalman filter, for MIMO systems.
- Be able to use optimization based PEM to identify dynamic models for MIMO systems based on known input and output data
General competence
The candidate will:
- Understand how system identification methods may be used to build models for dynamic MIMO systems
- Understand how optimal estimators may be constructed in order to predict outputs, estimate states and parameters
- Understand and provide the necessary foundation for further studies
- Get experience in presenting scientific theory and applications
[1] Codes given in parentheses correspond to the codes given in the programme description.
Innhold
Description of stochastic processes. Discrete time process and measurement noise. Observability and detectability. Kalman filter for state and parameter estimation in linear and nonlinear systems. Kalman filter on prediction and innovation form. Deterministic and stochastic models, combined deterministic-stochastic models. Dynamic and static models. Modeling for control, prediction, simulation, operator support, diagnosis, failure detection, etc. Prefiltering of data, identification of trends etc. Experiment design for dynamic systems and persistent excitation. Least-squares system identification with statistical analysis. Singular value decomposition (SVD), principal component analysis and regression (PCA, PCR). Partial least squares (PLS). Identification of stochastic and dynamic systems from known input-output data. Details in subspace system identification methods such as DSR, and details in prediction error methods. Recursive system identification methods. Utilization of a priori knowledge. Handling of known nonlinearities and use of linearizing functions. Introduction to statistical process control (SPC) and data reconciliation.
Arbeids- og læringsformer
Lectures and assignments are used.
Lectures are used to highlight the main topics of the course, facilitating knowledge.
During the semester the students will work with several assignments. These assignments will be based on problem based learning giving the students better understanding of specific subtopics in the course and general competence in writing scientific reports with citing and referencing sources.
An online, part-time version of the SCE study programme will start Fall 2015. The present course will be taught online from the fall/spring semester year YYYY. However, the course will continue to be taught also as a traditional campus-based course. The course contents and learning material used in the course will be the same in both programmes, except that in the online programme, the lectures will be in the form of offline video-based lectures, and laboratory assignments will be organized at a gathering on the campus at the end of the semester.
Vurderingsformer
The course evaluation is based on:
- An obligatory (compulsory) exercise report should be approved in order to obtain a final degree in the course.
- A final Exam counts 100%
Det tas forbehold om mindre justeringer i planen.
Publisert av / forfatter Unni Stamland Kaasin <Unni.S.KaasinSPAMFILTER@hit.no>,David Di Ruscio <David.Di.RuscioSPAMFILTER@hit.no> - 12.11.2015