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With the increment of traffic flow, the delay of flights in the TMA area is increased. It is essential that the potential usage of TMA airspace should be excavated. In this paper, SIMMOD PLUS is used for the evaluation of airspace structure of Chongqing TMA, taking Chongqing airport influence and its flow control strategy into consideration. Furthermore, the bottleneck which limits the operation of...
The control function of configuration software is researched and developed based on the application of laboratory project in this paper. A program of the fuzzy control algorithm is designed and simulated. Then the designed fuzzy control algorithm is embedded to the InTouch of the configuration software by the DDE communication protocol. The results show that the dynamic data exchange between InTouch...
The deterioration of worm propagation on internet in recent years has pushed the research in the field of worm defense, as a result there are coming up plenty of worm defense strategies. This paper refers to make the systematic study of the complete worm defense strategies and provide taxonomy of worm defense system strategies according to the key factors of each defense category. As guideline for...
According to a theories of electromagnetism, the electric field and heat generation density distribute affected by the electrode immersion depth was studied in process of electroslag remelting (ESR). The self-adapting meshing method was adopted. The result show that different electrode immersion depth lead to obvious dissimilarity for the electric field and heat generation density distribute. Based...
A low energy electron source panel with a carbon nanotube (CNT) cathode with a size of 50 × 50 mm2 including extraction and deceleration electrodes to extract electrons from CNTs and decelerate them to a low energy, such as several eV, has been developed. The simulation result of this electron panel and the basic electron emission properties are described.
The purpose of this research is study inverter simulation design for small wind power system. Through the comparative analysis, the main circuit choose high-frequency transformer form and using instantaneous voltage feedback control as control circuit. Using MATLAB software established a wind turbine inverter system circuit model, and gives out the circuit based on SPWM voltage feedback control system...
The mathematical model of double pendulum system is established based on the Newton's laws of motion and is linearized under the approximate condition when the pivot angle is very small. The above model is verified based on the simulation by MATLAB. The controllability and its relationship with parameters of the system is researched. Simulation result shows that the system is controllable when the...
With the development of network technology, computer network is characterized as an uncontrollable, variable and unpredictable infrastructure, this brings great difficulty of verify, defining, debugging and comparing the new schemes. Network simulation technology is proposed to test, appraise, and verify means available. This paper designs and implements an intelligent analyzing tool for NS2 traces,...
This study presents stress analysis of sheave wheel by a finite element analysis model and experimental tests. Simulation of stress field under two kinds of load condition was carried out with ANSYS. The corresponding relationship between stress and load of hoist as well as sheave wheel's phase angle were obtained. Then field experiments of sheave wheel stress under three kinds of conditions, which...
One of the many design and control issues of Automated Guided Vehicles System (AGVS) is the AGV fleet size. This paper presents a new solution method to determining the number of vehicles in the AGVS based on Flexible Manufacturing System (FMS). The approach relies on two procedures-estimate and simulation. With estimate procedure, the mathematic method will be used to estimate the AGV fleet size...
This paper designs an RFID IP core by utilizing FPGA technology, which has advantages of internal task scheduling and high-speed encoding & decoding. The RTL design of base-band communication IP core based on modular method is presented. The RFID simulation model is established and the experiment results show that the proposed communication simulation model has a good performance, and the IP-core...
Switched reluctance motor drive system becomes an attractive alternative in adjustable speed drive due to its simplicity in both motor construction and power converter, and vibration that resulting acoustic noise in switched reluctance motor have generated intense interest from the time it became commercially competitive with dc and ac drives. Focus on the magnetic noise vibration, dig the relationship...
With the rapid development of electronic technology advances, electronic technology is now applied to all walks of life. This paper, based on analogy theoretical principles of water & electricity, a new Dupuit steady well flow simulator is prensented. It is applied to the process of “groundwater dynamics” teaching experiment. It is studied and designed by electronic automation control technology...
In order to visualize the satellite navigation simulation system, the framework of a distributed satellite navigation simulation system composed of multi-platform systems was analyzed. The composition and the functions of the satellite navigation simulation system visualization software were illuminated. Based on MFC, presented the designing and realizing methods of the system information display...
This paper investigates an executable concurrent model for OWL-S process models. To this end, a concurrent temporal logic programming language, Framed Temporal Logic Programming Language (FTLL), and OWL-S process models are briefly introduced. Further, the computational model, Kripke Transition System (KTS), is inductively defined for processes of OWL-S. Moreover, an algorithm K-F is formalized to...
The influence of the orbit control force on the flexible satellite is under consideration. The dynamics model of the satellite with a large solar panel is established via Lagrange equations. The dynamic characters of the system are analyzed. The coupling coefficient matrixes between the motion of the satellite and the flexible vibration are related to the fixing position and fixing angle of the flexible...
We consider in this paper the problem of blind frame synchronization of systems using Reed-Solomon (RS) codes and other related families. We present first of all three techniques of blind frame synchronization based on the non-binary parity check matrix of RS codes. While the first two techniques involve the calculation of hard and soft values of the syndrome elements respectively, the third one perform...
In this paper, compressive sampling (CS) based energy detectors are developed for sparse communication signals, namely, pulse-position modulation (PPM) and frequency shift-keying (FSK) signals so as to reduce the complexity and sampling rate at the receiver. We focus on noncoherent detection, thereby avoiding the channel estimation step. Exact bit error probability (BEP) expressions for receivers...
Estimation of single-carrier communication channels based on superimposed training (ST) has been widely studied in the last years, because it offers a way for estimating the channel without the transmission of a pilot sequence multiplexed in time with the data, which implies a saving of valuable bandwidth. In this paper, the use of a variation of ST known as data-dependent superimposed training (DDST)...
This paper presents a review on the improved magnetron modelling which was achieved by exploiting a newly-developed software tool to automate the model definition in command-line solvers. The software was designed to work with the renowned MAGIC command-line software, by introducing pre-processing functions which assist the user to enter the required parameters using a 3D graphical interface. This...
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