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This work applied a vertical probe without the balance and lever arm as in the previous design of a Scanning Probe Microscope (SPM) system. Ziegler-Nichols-based PID and the intelligent fuzzy methods are also integrated for the controller design, thus the relative stability can be reserved at the nominal condition. Besides, even the system with parameters variation we can see not only the voice coil...
This study is designed to achieve a technology of extracting moving target within local windows based on GrabCut. After user cut out the moving target in the first frame, our system then covered a series of local windows over the contour of the target totally. Then our system used sparse optical flow algorithm and dense optical flow algorithm respectively to track the moving target and moved the local...
This paper processed the palmprint feature image with neural network by utilizing the parallel computing technology based on CUDA, at the same time, this paper also processed the same neural network based on Matlab as contrast. By comparing the results of processing speed, we came to the conclusion that parallel computing technology based on CUDA has a huge advantage on processing speed. The algorithm...
This paper introduces a SPWM inverter to output the high precision three-phase SPWM through rule sampling method, based on TMS320LF2407A chip, by using comparison units on event manager. Simple circuit, easy programming, high quality and reliability of SPWM waveform, and output waveform of the variable frequency, all can well meet the requirements of VVVF inverter system, and achieve more easily....
Fruit pests can cause severedamage to Fruit trees. This paper studies on the web based fruit trees pest image retrieval technology. Firstly, by contrast, we choose the color feature as a retrieval method. Secondly we modify the use of histogram intersection method, improveand correct the retrieval similarity value.
In order to verify the feasibility of applying identification technology to engineering control of such air vehicles as missiles, by taking into consideration the flight authenticity, repeatability, safety and reliability, the unmanned aerial vehicle (UAV) similar to missile flight control is selected as the controlled object. Based on identification theory and control guidance theory, this paper...
This paper presents a field programmable gate array (FPGA) prototype of an 8-digit Fibonacci sequence generator. The design is based on the Verilog hardware description language, synthesized by the Xilinx Synthesis Technology (XST) synthesizer, and implemented with the ISE design flow. The circuit was tested to run on the Spartan-3E Starter Kit Board. The resource utilization and the test results...
A suboptimal guidance law is designed for commanding satellite-guided projectiles to move with a large landing angle. Based on the characteristics of the projectile trajectory, motion state equations are established. A method for suboptimal guidance law design is presented based on discrete dynamic programming. Using the method, the suboptimal guidance law is obtained by inverse recursion at all the...
Interactive segmentation algorithm, which can provide accurate, reproducible boundary extraction, is widely applied to medical images. For hundreds of serial CT images of a patient, it is intolerable for radiation therapy physicians to delineate cancer target and some key normal tissues interactively one by one. The paper suggests a method to segment key layers of the image sequence with interactive...
This paper studies the CAN bus communication model of complex intelligent detecting equipment under serious electromagnetic working condition, analyses the effects of the serious interference to the equipment and reasons of the errors in data transmission when working. This paper employs the wavelet multi-resolution analysis, due to the property of time-frequency localization and multi-scale analysis;...
An anti-high-g posture measurement system based on MIMU is introduced. Data acquisition and processing modules are mainly introduced in this article. In addition, the software of this anti-high-g posture measurement system is designed. Practical application results show that the design method is workable.
An improved A* algorithm for the optimization of the vertical flight path based on terrain following is proposed. Which resolves the problem that the A* algorithm needs much more time when searching in big space. The paper primarily analyzes A* algorithm, and presents a new improved method of the traditional A*. In the route planning the approach angle to goal position is considered. Numeral simulations...
Feature fusion is widely used in face recognition as a new technology. As we all know, face recognition methods can be divided into two parts: supervised methods and unsupervised methods. So we want to propose a new algorithm which can get a better group of effective discriminant vectors for recognition by combining supervised methods and unsuperviseds method together. Hence we introduce a novel method...
When the fluid flows around the bluffy body, the vortex will be formed and shed alternatively behind the bluff body in the near wake. As the frequency of vortex shedding is close or equal to the natural frequency of structure, the resonance vibration will occur, even endangers the safety of structure. Due to the difficulty in detection of natural frequency of structure, experiments of vortex-induced...
Based on the researches of the advantages and disadvantages for model prediction filter, robust filter and unscented Kalman filter, a new robust model predictive-augmented UKF algorithm is proposed. And the input of the system state information is increased by add the drive noise into the system states. The model error is restrained by model predictive filter, and the robustness of the system is enhanced...
By the improved adaptive of genetic algorithm, the genetic operators that have adaptability at any time can be obtained, and the premature convergence problem of the traditional genetic algorithm have been overcomed. Then, the location of each storage in the warehouse has been defined by the serial number method, and the model of stacker to pick has been established. Finally, the adaptive genetic...
The aim of this paper is to contribute to a new synthesis algorithm for generalized linear quantum stochastic systems that are usually encountered in linear quantum optics and in phenomenological models of linear quantum circuits. In particular, such a theory will enable the systematic realization of generalized coherent quantum linear stochastic controllers for quantum control. We show how an any...
This paper deals with problems of checking rulebases of intuitionistic fuzzy inference and presents a set of techniques for checking intuitionistic fuzzy rules. Theorems of the relationship between theoretical output of system design and practical results, the inexistence of conditions for interactivities among intuitionistic fuzzy rules, and the impact of factors of interactivities among rules in...
Petri net is a tool of graphic contributing to system analyzing and modeling. It has a great power on describing concurrencies, conflicts and synchronizations for a distributed system. Additionally, extended Petri nets proposed before not only enrich the representations but also enhance the ability of modeling. This paper proposes a supervisory arc which can simplify the Petri nets, and it is beneficial...
Network coverage is one of the important indicators to measure the performance of sensor network, and is one of the basic problems of sensor network. We can study the problem of area coverage in order to find ways to improve sensor network service quality. Based on the introduction and analysis of the multiple area coverage algorithms, this paper studies and analyzes the Dividing Domain Algorithms,...
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