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In Inertia Confinement Fusion (ICF) physical experiments, the accuracy of target positioning affects the successful rate of target hitting directly. A 3-CCD camera system is often used for tiny target measurement in ICF target positioning. Most of the current pose measurement methods utilize the well-known digital image processing technology to extract the target features in each image, then calculates...
Standby power consumption often takes place unnoticeably, the negligence of which often leads to intangible energy waste. Although there have been several studies related to this issue, no method has been developed to estimate the amount of power consumed this way by analyzing users' power consumption data. Therefore, this paper, based on findings of previous researches and users' power consumption...
Most of the time a redundant manipulator do not need all the links work hard to perform a given work because of redundancy. It looks like some links play a major role and others give the assistant effect. We consider it could be executed based on a rule of keeping with a high flexibility of the manipulator and using as less energy as possible. Minami's research has already verified the Reconfiguration...
With the development of the close relationship between the tracking moving object algorithms and the monitoring system, PTZ (Pan-Tilt-Zoom) cameras become more powerful in offering requested images than platform-lens ones. How to choose the perfectly suitable algorithm turns out to be the main issue which people concern about. In this paper, we propose a virtual platform system, working as a PTZ camera,...
To widen the subsection stationary assumption of the seismic wavelet in common sectional method for time-variant wavelet estimation, the time-variant mixed-phase seismic wavelet estimation method based on spectral modeling in time-frequency domain is proposed. The seismic record is transformed into time-frequency domain using the improved generalized S-transform firstly. After filtering the time-frequency...
In Inertia Confinement Fusion (ICF) physical experiments, the accuracy of target positioning affects the successful rate of target hitting directly. A 3-CCD camera system is often used for tiny target measurement in ICF target positioning. Most of the current pose measurement methods utilize the well-known digital image processing technology to extract the target features in each image, then calculates...
Many physical problems can be modelled with the max-plus linear system and some results have been obtained. In this paper, first we will give some results and properties about intervals and present the definition and operations of interval matrices, then we will put forward the control problem for max-plus linear systems in interval dioid, in which the state respects the given constraints (i.e. inequality...
UOF/OOXML Translator requires test cases to achieve 100% coverage, however, because test cases designed are depending on testers to understand and be familiarity with Office software function points, the coverage cannot be quantified and analysis correctly, and the completeness of testing cannot be ensure. For these problems, this paper proposes a method of measuring test case coverage Based on analysis...
In Inertia confinement fusion (ICF) physical experiments, target positioning accuracy directly affects the success of target hitting. A simulation system using “OpenGL” graphics software is built to evaluate the target positioning algorithm, by avoiding the effect on measurement that is resulted from other sources of error in the system like manufacturing error and installation error. The proposed...
The paper carries out finite element analysis and lightweight design of the lower extremity exoskeleton of a gait rehabilitation training robot. PRO/E is used to model and assemble the whole machine of the lower extremity exoskeleton. ANSYS Workbench is used to build the finite element model of the lower extremity exoskeleton. The intensity and rigidity of critical components of the lower extremity...
Currently the lower limb rehabilitation robot research focuses on the exoskeleton robot, however, the effect of rehabilitation training of the exoskeleton rehabilitation robot for ankle is not satisfactory. Based on the research of the lower limb rehabilitation robot, this paper puts forward a new type of foot board rehabilitation robot, which is composed of two horizontal movement mechanisms and...
Cumulants matching method for seismic wavelet extraction is ultimately a multi-parameters, multi-extremes nonlinear functional optimization process. in this paper, a novel improved PSO algorithm (Adaptive Chaotic Embedded Particle Swarm Optimization, ACEPSO) has been proposed to be applied in wavelet parameters estimation. ACEPSO embeds chaotic variables in standard particle swarm optimization algorithm,...
In this paper, we study adaptive control design problem of piecewise-linear systems with matching parametric uncertainties. The basic idea is to construct a piecewise control law and a piecewise parameter adaptation law in such a way that a piecewise quadric Lyapunov function can be used to establish the global stability. All of the synthesis conditions are formulated as Linear Matrix Inequities and...
Computer vision is trying to build up an artificial intelligence system to obtain information from image or multidimensional data, target recognition of Computer Vision is one of an important research area. This paper studies how to realize recognition the suspected target area in remote sensing image after a series of pre-processing. Remove the interference area and leave suspended target area in...
Although many papers have been published on visual tracking and visual servoing of the vision-based robotics, there are only few research studies on using vision to improve the standing and walking stabilization for legged robots. In this paper, we propose a “Visual Lifting Bipedal Walking” strategy, which uses visually measured information to control the robot for keeping a desired head-top's position/orientation,...
Wideband spectrum sensing is applied to detect the unused spectrum hole for cognitive radios. Given the sparseness of the spectrum, the compressive sensing can be applied to the coarse sensing of spectrum. In the spectrum sensing, there are several spectrum bands in a frequency range with the same length. In order to sense this kind of spectrum with high speed and low computation complexity, this...
In order to solve the human-computer interactive problem in Instant Messaging Robot, a face detection algorithm is proposed in this paper, which adopts skin model and Adaboost face detection algorithm based on Haar feature to detect face. It makes face detection come true successfully in Instant Message Robot. At last, the experiment results are given with the Matlab programs.
This paper studies the primary user (PU) signal detection methods over Rayleigh fading channel in cognitive radio system. We propose a double threshold detection with channel selective. In this method, cognitive user receives signals by selecting the maximum SNR channel, so it can effectively detect the primary user (PU) signal in Rayleigh fading environment. And the influence on detection performance...
Based on the information of specimens in the relevant herbariums, the species and their collecting locality, preserved herbariums and collecting date were counted and analyzed respectively in order to give an overview about specimens of the national key protected wild plants in Hubei Province. The results showed that there are 1906 collect codes of specimens of the national key protected wild plants...
In this paper, we focus on how to control the robot end-effector to track an object, meanwhile, to approach it with a suitable posture for grasping. We named it “Approaching Visual Servoing”. A proposed hand & eye-vergence dual control system is used to perform Approaching Visual Servoing, aiming at quick eye-tracking and stable hand servoing and approaching. This idea stems from hammerhead shark...
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