Ultra-high-precision time control system over any long time delay for laser pump and synchrotron x-ray probe experiment

2008 ◽  
Vol 79 (4) ◽  
pp. 045107 ◽  
Author(s):  
Yoshimitsu Fukuyama ◽  
Nobuhiro Yasuda ◽  
Jungeun Kim ◽  
Haruno Murayama ◽  
Takashi Ohshima ◽  
...  
Keyword(s):  
Control System ◽  
Time Delay ◽  
High Precision ◽  
X Ray ◽  
Laser Pump ◽  
Time Control ◽  
Probe Experiment ◽  
Long Time ◽  
Precision Time

Fault Diagnosis Method for a Network Control System with Long-Time Delay and Data Packet Loss Based on H∞ Filtering

2013 ◽  
Vol 846-847 ◽  
pp. 795-798
Author(s):  
Jiao Meng ◽  
Qi Hua Xu ◽  
Xiao Xiao
Keyword(s):  
Control System ◽  
Fault Diagnosis ◽  
Time Delay ◽  
Packet Loss ◽  
Estimation Error ◽  
Network Control ◽  
Data Packet ◽  
Practical Significance ◽  
Network Control System ◽  
Long Time

Improving network control system---NCS reliability and safety has important practical significance because NCS is a hot research subject in these years. Fault diagnosis methods are researched in this paper according to NCS with long-time delay and data packet loss. Firstly, given a NCS with long-time delay, a state observer is structured. Secondly, make the state estimation error equation equivalent to an asynchronous dynamical system having event incidence constraint according to whether the system having data packets loss. The problem of fault diagnosis is converted to filtering problem through structuring filtering residual system based on the observer, then giving a corresponding filter designing algorithm. The designed fault diagnosis filter system not only make sure the stability of the closed loop system but also make the residual systems norm less than given reduction level. Finally, the simulation results prove that the algorithm can diagnose faults effectively.

High-Precision Time Delay Control with Continuous Phase Shifter for Pump-Probe Experiments Using Synchrotron Radiation Pulses

2010 ◽  
Author(s):  
Yoshihito Tanaka ◽  
Takashi Ohshima ◽  
Yoshimitsu Fukuyama ◽  
Nobuhiro Yasuda ◽  
Jungeun Kim ◽  
...  
Keyword(s):  
Time Delay ◽  
Synchrotron Radiation ◽  
High Precision ◽  
Phase Shifter ◽  
Continuous Phase ◽  
Pump Probe ◽  
Time Delay Control ◽  
Delay Control ◽  
Precision Time

High-precision identification of a tip–tilt control system for the compensation of time delay

2017 ◽  
Vol 56 (5) ◽  
pp. 1431 ◽  
Author(s):  
Yukun Wang ◽  
Zhaoliang Cao ◽  
Lifa Hu ◽  
Xingyun Zhang ◽  
Dayu Li ◽  
...  
Keyword(s):  
Control System ◽  
Time Delay ◽  
High Precision

A Stable Adaptive Control Method in Networked Control System

2011 ◽  
Vol 110-116 ◽  
pp. 4837-4844
Author(s):  
Yu Zhang ◽  
Peng Cheng ◽  
Teng Fei Yin
Keyword(s):  
Control System ◽  
Time Delay ◽  
Control Method ◽  
Fuzzy Controller ◽  
Sampling Period ◽  
Networked Control System ◽  
Network Control ◽  
Control Logic ◽  
Network Time ◽  
Long Time

In this paper it has made study on long time-delay network control system which is greater than one sampling period, it has made modeling on sensor node time drive, controller node and actuator node event-driven system The special question has been considered which was brought more than one sampling period delay, the fuzzy control logic has been applied in MATLAB to design an adaptive Fuzzy controller, when the network time delay changes the controller parameters can be adjusted dynamically, to make dynamic compensation on network time delay, and through simulation experiments to verify the algorithm effectiveness.

Design of an input amplitude-constrained discrete-time control system

1998 ◽  
Vol 212 (5) ◽  
pp. 339-344
Author(s):  
K Y Zhu ◽  
S M Krishnan
Keyword(s):  
Control System ◽  
Time Delay ◽  
Lyapunov Function ◽  
Discrete Time ◽  
System Model ◽  
Augmented System ◽  
Input Amplitude ◽  
Time Control ◽  
Regulation And Tracking ◽  
Stability Results

A discrete-time controller based on an augmented system is proposed. The controller globally stabilizes a class of type- m systems subject to an input amplitude constraint. It is shown that use of the augmented system model allows us to handle with ease the system with arbitrary zeros and especially time delay. Stability results for both regulation and tracking are established on the basis of Lyapunov function methods and simulations of the demonstration are also carried out.

High-precision time delay estimation of narrowband radio signal by PHAT-LSTM

2021 ◽  
Author(s):  
Yao Shunyu ◽  
Qiao Meng ◽  
Congyan Chen ◽  
Irfan Tariq ◽  
Chenye Zhou ◽  
...  
Keyword(s):  
Time Delay ◽  
High Precision ◽  
Radio Signal ◽  
Time Delay Estimation ◽  
Delay Estimation ◽  
Precision Time
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