Results 51 to 60 of about 154,377 (300)

Autonomous underwater vehicle depth control based on an improved active disturbance rejection controller

International Journal of Advanced Robotic Systems, 2019
Large fluctuation, large overshoot, and uncertain external disturbance that occur when an autonomous underwater vehicle is in deep motion are difficult to address using the traditional control method.
Zhengzheng Zhang, Bingyou Liu, Lichao Wang   +2 more
doaj   +1 more source

Experimental investigation of a SMC high precision control [PDF]

, 2006
In this paper a discrete-time Sliding-Mode (SM) based controller for high accuracy position control is investigated. The controller is designed for a general SISO system with nonlinearity and external disturbance. It will be shown that application of the
Abidi, Khalid Seyed, Sabanovic, Asif, Şabanoviç, Asif   +2 more
core  

Robust Decentralized Secondary Frequency Control in Power Systems: Merits and Trade-Offs [PDF]

, 2018
Frequency restoration in power systems is conventionally performed by broadcasting a centralized signal to local controllers. As a result of the energy transition, technological advances, and the scientific interest in distributed control and ...
De Persis, Claudio, Dörfler, Florian, Jiang, Yan, Mallada, Enrique, Weitenberg, Erik, Zhao, Changhong   +5 more
core   +2 more sources

Bio‐Inspired Multimodal Hardware Front‐End Enabled by 2D Floating‐Gate Memory for UAV Perception

Advanced Functional Materials, EarlyView.
A MoS2/h‐BN /graphene floating‐gate memory underpins a bio‐inspired multimodal front end that integrates visual, inertial, and airflow cues. A 4 × 4 FG memory array encodes temporal intensity differences, while IMU‐ and airflow‐driven threshold modulation suppresses self‐motion artifacts, enabling fast, low‐power, robust autonomous UAV tracking and ...
Lianghao Guo, Yue Cheng, Cong Li, Xiaoyu Guo, Jiankai Yin, Dadong Fan, Zhenyu Xu, Chenyu Tang, Arokia Nathan, Shuo Gao, Li Tao, Luigi G. Occhipinti   +11 more
wiley   +1 more source

A Relay Feedback Method for the Tuning of Linear Active Disturbance Rejection Controllers

IEEE Access, 2020
Active disturbance rejection control (ADRC) is a new control method that estimates the total disturbance by an extended state observer and compensates it by a state feedback law, and good disturbance rejection performance is expected compared to ...
Wenqing Cui, Wen Tan, Donghai Li, Yutong Wang, Shuqing Wang   +4 more
doaj   +1 more source

Closed-loop Frequency Tracking and Rejection [PDF]

, 1997
This paper develops an adaptive controller for active vibration control. The method is based on the LQG approach via disturbance modelling given in De Nicolao [1].
Connolly, Allan J., Kootsookos, Peter J., La Scala, Barbara F.   +2 more
core   +1 more source

Hierarchical Cellulose/MXene Aerogel Films with Coral‐Like Polyaniline Skin for Absorption‐Led Broadband EMI Shielding

Advanced Functional Materials, EarlyView.
A regenerated cellulose/MXene aerogel film is engineered with a surface‐confined, coral‐like polyaniline skin to intensify interfacial polarization while a porous, percolated conductive core is retained. By molten salt hydrate processing and interfacially confined oxidative polymerization, PANI growth is localized at the outer surface and internal ...
Kun Liu, Haishun Du, Ting Xu, Chuanling Si, Xuejun Pan   +4 more
wiley   +1 more source

Bioprinting Organs—Science or Fiction?—A Review From Students to Students

Advanced Healthcare Materials, EarlyView.
Bioprinting artificial organs has the potential to revolutionize the medical field. This is a comprehensive review of the bioprinting workflow delving into the latest advancements in bioinks, materials and bioprinting techniques, exploring the critical stages of tissue maturation and functionality.
Nicoletta Murenu, Camilla Mussoni, Mateo S. Andrade Mier, Paula Buettner, Nathaly Chicaiza‐Cabezas, Yi‐Yu Robin Dai, Jessica Faber, Maren Fiedler, Zan Lamberger, Xuen Jen Ng, Vanessa Moessler, Anna Rederer, Jonas Roeder, Sabrina Stecher, Katinka Theis, Jeanette Weigelt, Silvia Budday, Gregor Lang, Natascha Schaefer   +18 more
wiley   +1 more source

Bearing-Based Formation With Disturbance Rejection

IEEE Transactions on Automatic Control
This paper considers the problem of the bearing-based formation control with disturbance rejection for a group of agents under the leader-follower structure. The disturbances are in the form of a trigonometric polynomial with arbitrary unknown amplitudes, unknown initial phases, and known or unknown frequencies.
Haoshu Cheng, Jie Huang
openaire   +3 more sources

Reset Control for Vibration Disturbance Rejection

IFAC-PapersOnLine, 2019
The high tech industry which requires fast stable motion with nanometer precision continues to mainly use PID which is limited by fundamental linear control limitations. Floor vibrations as disturbance significantly affect performance and their rejection is particularly affected by these limitations.
Akyiiz, Erdi (author), Saikumar, N. (author), Hassan HosseinNia, S. (author)   +2 more
openaire   +4 more sources