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Surface Electromyography (EMG) is popularly used to decode human motion intention for robot movement control. Traditional motion decoding method uses pattern recognition to provide binary control command which can only move the robot as predefined limited patterns. In this work, we proposed a motion decoding method which can accurately estimate 3-dimensional (3-D) continuous upper limb motion only...
Because hand is often used for grasping, developing a design of prosthetic hands, particularly light and compact underactuated anthropomorphic transradial prostheses for reproducing human hand complex grasping is crucial for upper-limb amputees. Obviously, the less the number of actuators is, the worse the anthropomorphic motion capability of the prosthetic hands will be. This paper aims to design...
This paper proposed a closed-loop torque control strategy of functional electrical stimulation (FES) with the aim of obtaining an accurate, safe, and robust FES system. Generally, FES control systems are faced with the challenge of how to deal with time-variant muscle dynamics due to physiological and biochemical factors (such as fatigue). The degraded muscle force needs to be compensated in order...
In this paper, we study a joint soft sparse encoding scheme for the three-node relay system. The relayed soft information is expressed basing on the Log- Likelihood-Ratios (LLRs) of the received signals at the relay. We investigate this coding method by using a regular LDPC code at the source and a sparse generator matrix at the relay. We also deliberately design the structure of the joint code by...
Based on damage modes of container cranes under earthquake and the characteristic of over-span flexible structures, the anti-seismic design of such machines was investigated. Taking the first crane equipped with isolating device as an example, through dynamic analysis and simulating to anti-seismic crane flexible system under the earthquake and validating analysis and results though the earthquake...
This paper discusses the content and mechanism of strategic alliance and knowledge management in enterprise, focus on the transfer, sharing, integration, collision and protection of the knowledge; and with China's reality, it proposes a number of countermeasures and proposals about knowledge management when establish corporate strategic alliance, especially multinational strategic alliance. Ensure...
This paper proposes repeatedly direct kinematics (RDK) algorithm to trajectory generation of a multi-joint robot in lift-down movements. For trajectory generation of the multi-joint robot, three constraints are considered. They are no turnover, the joint limits and the torque limits of the robot. Safety factor is set in order to ensure the stability of robot. The emphasis of the study is placed on...
MMSE-DFE (minimum mean square error-decision feedback equalization) is a sliding-window decision feedback equalization method. This paper first applies MMSE-DFE into joint detection algorithm for TDD-CDMA (time division duplex-code division multiple access). It has the low complexity compared with MMSE-BDFE (minimum mean square error-block decision feedback equalization) based joint detection. MMSE-IC...
In this paper, VC++ serves as a workspace to establish the features of speediness and navigation speed controlling. A mathematical model of intelligent propulsion system of an adjustable-pitch-screw-propelled hydrofoil sliding craft was built up, and then applied the fuzzy-genetic algorithm (FGA), to program the optimizing-computing process of the best combination of the controlling parameters of...
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