MACS LAB
MACS LAB
Home
Research
People
Publications
News
Outreach
Teaching
Contact
Highindex
Learned Slip-Detection-Severity Framework using Tactile Deformation Field Feedback for Robotic Manipulation
Safely handling objects and avoiding slippage are fundamental challenges in robotic manipulation, yet traditional techniques often …
Neel Anand Jawale
,
Navneet Kaur
,
Elizabeth Amy Santoso
,
Xiaohai Hu
,
Xu Chen
Cite
DOI
Optimal Loop Shaping and Disturbance Rejection Beyond the Nyquist Frequency using a Forward Model Disturbance Observer and Convex Optimization Based Filter Design
Loop shaping based on the disturbance observer (DOB) offers great flexibility in designing a control system’s closed-loop …
Thomas Chu
,
Xiaohai Hu
,
Xu Chen
PDF
Cite
DOI
State-Space System Identification beyond the Nyquist Frequency with Collaborative Non-Uniform Sensing Data
In a multirate sampled-data system encompassing a continuous-time process and multiple output samplers with different sampling periods, …
Xiaohai Hu
,
Thomas Chu
,
Xu Chen
PDF
Cite
DOI
Target Tracking Under Delayed and Irregularly-Sampled Visual Feedback for a Robotic Air-Hockey System
We present a target tracking system for a robotic air-hockey player, where the state of the puck is optimally estimated by fusing …
Hui Xiao
,
Xu Chen
PDF
Cite
DOI
A Multirate Repetitive Control for Fractional-Order Servos in Laser-Based Additive Manufacturing
This paper studies repetitive control (RC) algorithms to advance the quality of repetitive energy deposition in laser-based additive …
Dan Wang
,
Xu Chen
PDF
Cite
Enhanced Wide-Spectrum Vibration Suppression Based on Adaptive Loop Shaping
In linear feedback control, the attenuation of disturbances at the designer-selected frequencies is subjected to the fundamental …
Liting Sun
,
Xu Chen
,
Masayoshi Tomizuka
PDF
Cite
DOI
Extended State Observer with Phase Compensation to Deal with High-frequency Vibrations in Hard Disk Drives
The extended state observer (ESO), as a special case of high-gain observers, can estimate not only the state variables but also unknown …
Minghui Zheng
,
Xu Chen
,
Masayoshi Tomizuka
PDF
Cite
DOI
Input-to-output Discontinuity and Transient Improvement in Add-on Control Design
Add-on control is commonly used in control systems for disturbance rejection and servo enhancements. Despite the capability of greatly …
Tianyu Jiang
,
Paul Hanrahan
,
Xu Chen
PDF
Cite
DOI
Multirate Forward-model Disturbance Observer for Feedback Regulation beyond Nyquist Frequency
A fundamental challenge in digital and sampleddata control arises when the controlled plant is subjected to fast disturbances with, …
Xu Chen
,
Hui Xiao
PDF
Cite
DOI
Discrete-time Output Feedback Nonlinear Control for Combined Low- and High-frequency Disturbance Compensation
We present a discrete-time output feedback nonlinear control algorithm for reference tracking under both broad-band disturbances at low …
Wonhee Kim
,
Xu Chen
,
Chung Choo Chung
,
Masayoshi Tomizuka
PDF
Cite
DOI
»
Cite
×