نتایج جستجو برای: mrac

تعداد نتایج: 296  

Journal: :Proceedings of the JFPS International Symposium on Fluid Power 1989

2014
Naruya KATSURAYAMA Isao TAKAMI

Model Reference Adaptive Control (MRAC) is consists of a reference model, a plant model, and adaptive law. It is made to follow the target system to the reference model by fixed gain. As study example, Yang developed an adaptive control for SISO state space system[1]. Yang’s method[1] was not discussed about the performance of the reference model. MRAC depends on performance of the reference mo...

Journal: :Applied sciences 2023

As one of the key techniques used in perception layer Industrial Internet Things (IIoT), radio frequency identification (RFID) has been widely applied for object tracing, smart warehouse management, product line monitoring, etc. In most applications, conveyor belts are prevalently implemented to accelerate sorting efficiency goods management. However, such a system, tags quickly go through read...

2013
Anna Joseph Samson Isaac

Nonlinear process control is a difficult task in process industries. Conical tank level control is one among them. Real processes often exhibits nonlinear behavior, time variance and delays between inputs and outputs. This paper aims at implementing an adaptive control algorithm for a conical tank system. System identification of the non-linear process is done using black box modelling and foun...

2014
Nadia Akkari Abdelaziz Chaghi Rachid Abdessemed

This paper presents the analysis and simulation of the control of double star induction motor, using direct torque control (DTC) based on model reference adaptive control algorithm (MRAC). The DTC is an excellent solution for generalpurpose induction drives in very wide range the short sampling time required by the TC schemes makes them suited to a very fast torque and flux controlled drives as...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2015
Abolfazl Mehranian Habib Zaidi

UNLABELLED The joint maximum-likelihood reconstruction of activity and attenuation (MLAA) for emission-based attenuation correction has regained attention since the advent of time-of-flight PET/MR imaging. Recently, we improved the performance of the MLAA algorithm using an MR imaging-constrained gaussian mixture model (GMM). In this study, we compare the performance of our proposed algorithm w...

Journal: :Physics in medicine and biology 2015
Abolfazl Mehranian Habib Zaidi

In standard segmentation-based MRI-guided attenuation correction (MRAC) of PET data on hybrid PET/MRI systems, the inter/intra-patient variability of linear attenuation coefficients (LACs) is ignored owing to the assignment of a constant LAC to each tissue class. This can lead to PET quantification errors, especially in the lung regions. In this work, we aim to derive continuous and patient-spe...

Journal: :Energies 2021

A model reference adaptive control and fuzzy neural network (FNN) synchronous motion compensator for a gantry robot is presented in this paper. This paper proposes the development application of robots with MRAC FNN online compensators. First, we propose controller (MRAC) under cascade method to make close real reduce tracking errors single axis. Then, proposed compensate between dual servo mot...

2014
Xiaoping Zong Miao Zhang Peiguang Wang

This paper presents the adaptive control parameter identification of switched nonlinear system that uses model reference adaptive control (MRAC) method to track the variation of the state error to approach the ideal values. MRAC is treated as a class of switched nonlinear systems in which the unknown parameters appear linearly. At the same time, switched systems ensure the whole system stay sta...

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