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This paper proposes a relative shape context and relaxation labeling (RSC-RL) based approach for point pattern matching (PPM). First of all, a new point set based invariant feature, Relative Shape Context (RSC), is proposed. Using the test statistic of relative shape context descriptor's matching scores as the foundation of support function, the point pattern matching probability matrix can be iteratively...
The Mw=6.3 L'Aquila earthquake, taking place on 6th April 2009 in Italy, caused severe surface deformation. This paper described that the differential interferometric SAR (D-InSAR) technique and ENVISAT ASAR data were used to detect the L'Aquila co-seismic deformation fields. Firstly it introduced the basic principle and data processing flowchart of D-InSAR. Then it introduced the ENVISAT ASAR data...
Aerodynamic parameter estimation provides an effective way for aerospace system modelling using measured data from flight test, especially for the purpose of developing elaborate simulation environments and control systems design of Unmanned Aerial Vehicle (UAV) with short design cycles and reduced cost. However, parameter identification of airplane dynamics is complicated because of its nonlinear...
In the research of locating sudden acoustic emission source the transducers are generally arranged in special geometries in order to derive the equations which give acoustic emission source location, and to make the calculations simple. In this paper a new method for locating plane acoustic emission source is proposed by setting the transducers in a straight line. This method makes the arrangement...
When through-the-wall ultra-wideband (UWB) synthetic aperture radar (SAR) is applied to imaging, the interference of multipath spreading between targets will introduce ghosts into the SAR image. This paper proposes a novel technique for through-the-wall UWB SAR imaging with the capability to suppress multipath ghosts. A multipath scattering model is first developed for through-the-wall UWB SAR. By...
Components on console are usually arranged by manual layout according to ergonomics standards and experiences in nuclear power plant. It is hard to balance many criterions, for it depends much on designer's judgments and preferences. This method leads to a random layout results. Particle swarm optimization is a solution to complex optimization problems with constraints, and has been applied successfully...
Demand forecasts play a crucial role in modern enterprise management. However, the diversity and uncertainty of the economic environment often make it hard to produce accurate forecasting results, especially when historical data change dramatically and there rise similar or substituting products. This paper discusses how to handle the historical demand data, analyze the market share of similar products,...
Based on the stochastic time series model, in order to study the correlation between Xiamen's investment in fixed-asset and GDP, this paper establishes the transfer function model of them and analyses the lagging effects of fixed asset investment for GDP on the basis of the model. The result shows that investment in fixed assets has a positive lag effect for economic, and for a long time, can stimulate...
Aim at the characteristics of maglev train operation, we present a control system for maglev traffic, and this system innovatively introduces electronic map-based control framework. We make a detailed discourse upon the key technology involved in this system (e.g. mode of data storage, centralized / distributed data storage and processing), and ultimately, not only establish the software framework...
The paper deals with a method implemented to study braking systems design, modelling components' characteristics through commercial software. It summarizes the potential improvement possible by using modelling techniques in chassis systems design. The first part consisted in introducing the configurations of the device producing fluctuant load for vehicle braking system, which is a new system to improve...
Signal acquisition based on multiple sensors is widely used in many applications, especially in robot with binaural auditory system. This paper provides one recording procedure with dual-caching and multi-thread technologies for unlimited time and synchronized sound signal collecting. Besides, in order to solve time delay in multiple recording, timer must be taken in system procedure. Furthermore,...
Based on the Transmission Line Method (TLM), the induced current and voltage of cables in vehicles under the condition of high power electromagnetic pulse (EMP) are discussed in this paper. The analysis includes the position of cables, the type of cables and spacing of cables. The simulation results show that the cables should be close to the chassis in the design and the terminal of cables should...
Many universities and institutes experience difficulty in training people to work with expensive equipments. A common problem faced by educational institutions concerns the limited availability of expensive robotics equipments, with which students in the didactic program can work, in order to acquire valuable "hands on" experience. Therefore, the Robot Simulation Software (RSS) nowadays...
A linear blind source separation algorithm based on generalized eigen-equation resolving is presented. Then a nonlinear blind source separation algorithm is proposed by extending the linear source separation algorithm to the nonlinear domain. The received mixing signals are first mapped to high-dimensional kernel feature space, and a feature vector basis given by the fitness function of the kernel...
The target detection algorithm based on Independent Component Analysis (ICA) was proposed. The orthogonal subspace projection operator was used to extract the target endmembers and the initialization mixing matrix of the FastõICA was made up of such endmember vectors. This method could solve the ordering randomicity of independent vectors. In this paper, the Noise-Adjusted Principal Component Analysis...
EDF is a classic dynamic real-time task scheduling algorithm. In an embedded soft real-time system, the deadline missing ratio is an important metric to evaluate system performance. When an embedded soft real-time system is overloaded, EDF algorithm is not effective. In addition, considering the unsteadiness and unpredictability of a practical task running environment due to the unsteadiness of network...
EDF is a classic dynamic embedded real-time multi-task scheduling algorithm. In an embedded soft real-time system, the deadline missing ratio is an important metric to evaluate system performance. When an embedded soft real-time system is overloaded, EDF algorithm is not effective. In addition, considering the unsteadiness and unpredictability of a practical task running environment due to the unsteadiness...
When searching for robust optimal solutions in evolutionary optimization, a criterion for robustness estimation is needed. An expectation-based approach and a variance-based approach are highlighted in this paper. Experiments are conducted on a single-objective test function adopting three unequal values of dimension size, solved by an chaotic evolutionary algorithm. In both former low-dimensional...
One of the most important problems in pipeline processor is control hazard. It occurs when a processor fetch and execute a conditional branch instruction. The previous methods like statically and other prediction methods sometimes does not give correct prediction and the processor forced to put out the next instructions from the pipeline and the control hazard occurs and sometimes has relatively high...
In this paper a new architecture to calculate Ln function based on data-oriented theory is introduced. Because of using proper and huge amount of data in modeling, implementing of this type of models causes less calculation complexity. Data-oriented architecture is made of considering memory and small calculation unit together. Proposed method calculates Ln function faster than common methods.
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