作者:
Xuxian YinGang ShiZhidong WangHongyi LiState Key Laboratory of Robotics
Shenyang Institute of Automation (SIA) Chinese Academy of Sciences (CAS) Shenyang 110016 P. R. China and University of Chinese Academy of Sciences Beijing 100049 P. R. China State Key Laboratory of Robotics
Shenyang Institute of Automation (SIA) Chinese Academy of Sciences (CAS) Shenyang 110016 P. R. China State Key Laboratory of Robotics
Shenyang Institute of Automation (SIA) Chinese Academy of Sciences (CAS) Shenyang 110016 P. R. China and Dept. of Advanced Robotics Chiba Institute of Technology Chiba 2750016 Japan State Key Laboratory of Robotics
Shenyang Institute of Automation (SIA) Chinese Academy of Sciences (CAS) Shenyang 110016 P. R. China and School of Mechanical Engineering & Automation Northeastern University Shenyang China
Functional near-infrared spectroscopy (fNIRS) is an emerging non-invasive optical technique which can measure cortical brain activities. This study describes the development of one-channel fNIRS system designed for br...
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ISBN:
(纸本)9781467396769
Functional near-infrared spectroscopy (fNIRS) is an emerging non-invasive optical technique which can measure cortical brain activities. This study describes the development of one-channel fNIRS system designed for brain-computer interface (BCI), six subjects participate in the experiment, the concentration changes of oxy-hemoglobin (HbO_2) and deoxy-hemoglobin (Hb) during mental arithmetic task are measured. And physiological noise in hemodynamic responses are reduced based on empirical mode decomposition (EMD). EMD is a data-driven and adaptive algorithm for analyzing non-stationary data. This method decomposes the original data into a set of intrinsic mode functions (IMFs). Noise can be eliminated by selecting appropriate IMFs. Compared with conventional butterworth filter, EMD achieves a higher contrast to noise ratio (CNR) in physiological noise reduction.
The large diameter-thickness-ratio KDP crystals are the main optical element in Inertial Confinement Fusion (ICF) device to realize the harmonic generation, thus they need to maintain high quality surface figure, and ...
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A quadrotor is a typical multiple-input multiple-output (MIMO), underactuated, strong coupled nonlinear system with parameter uncertainty and unmodeled disturbance. To track the desired attitude and height, a linear a...
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A quadrotor is a typical multiple-input multiple-output (MIMO), underactuated, strong coupled nonlinear system with parameter uncertainty and unmodeled disturbance. To track the desired attitude and height, a linear active disturbance rejection control (LADRC) approach is utilized for the quadrotor control. LADRC has the capacity of estimating and compensating the generalized disturbance, and reduce the system to a unit gain double integrator, which is easily implemented and robust to environment disturbances. A simplified dynamic model of quadrotor is established using Newton-Euler equations. The design of LADRC is verified through numerical simulation and compared with PID controller. Simulation results indicate the LADRC can be used to achieve good performance in tracking the desired attitude and height.
This paper introduced a virtual roaming system which can be effectively used in studying ocean scenes based on 3ds max modeling tools and virtools development software. Establishing this system needs the following ste...
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Currently, some problems exist in the process of using standby generators, such as low efficiency,high cost and late service of artificial overhaul and *** order to overcome problems, PC remote monitoring system is **...
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In view of the problem of complex cabling and the difficulty of real time monitoring of the workshop, the wireless network technology, the LabVIEW software and Internet technology are used in this paper to realize the...
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According to the problem of being hard to achieve precise management of production in the actual production environment, RFID tags are used to identity production materials and RFID readers are placed at some importan...
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In aviation industry, it’s urgent to build a scientific and effective knowledge system with high scalability to change the fact that the data is rich while the knowledge is deficient. We constructed the knowledge ont...
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Due to adopt manual startup standby generator set in society,operating personnel can't immediately start the standby generator set after the power failure *** at this problem,a scheme of the standby generator set ...
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Gaining high mobility on versatile terrains is a crucial target for designing a mobile robot toward tasks such as search and rescue, scientific exploration, and environment monitoring. Inspired by dextrous limb motion...
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Gaining high mobility on versatile terrains is a crucial target for designing a mobile robot toward tasks such as search and rescue, scientific exploration, and environment monitoring. Inspired by dextrous limb motion of animals, a novel form of locomotion has been established in our previous study, by proposing an eccentric paddle mechanism (ePaddle) for integrating paddling motion into a traditional wheeled mechanism. In this paper, prototypes of an ePaddle mechanism and an ePaddle-based quadruped robot are presented. Several locomotion modes, including wheeled rolling, legged crawling, legged race-walking, rotational paddling, oscillating paddling, and paddle-aided rolling, are experimentally verified on testbeds with fabricated prototypes. Experimental results confirm that paddle's motion is useful in all the locomotion modes.
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