|
Title |
Author |
Abstract |
|
A
Practical Scene Matching Simulation Method
|
YANG
Xiao-gang, MIAO Dong,
CAO
Fei
|
A
practical scene matching simulation method is designed in this
paper. The reliability of the performance parameters of matching
can be improved efficiently when the method is applied in the
performance evaluation. Based on the performance parameters
analysis of selected matching algorithm, a scene matching
navigation oriented reference image matching quality detection
approach is proposed. The approach provides new measurement
parameters for the reference image selection. The compared
experimental results demonstrate the practicability and
efficiency of the simulation method. |
|
Dynamic
Simulation Of Tank Gun System
|
SHI
Lichen, WANG Liangxi, ZHANG Bingzhi
|
Vibration
of moving tank gun system on irregular surface is mainly
concerned in this article. Based on dynamic analysis such models
are established as follows: double side road irregularity model,
ride dynamic model of the chassis based on state equation
including three dimensional hull, double side road wheels and
seats position at will, and the interaction model between the
chassis and the gun. And digital simulation based on these
models is performed. In this method, the influence of the
chassis to the gun is considered, so the vibration of the gun on
tank can be described better. Quantitative analysis for the
influence of the tank gun parameters to vibration can be made by
changing the values of the variables to get different simulation
results, so it can take an active role in tank gun system design
and optimization. |
|
Modeling
of Automated Guided Vehicle System bases on Timed Colored Petri
Net and Directed Graph
|
SHI
Yang, CAO Li-ming, ZHAN Yue-dong, WANG Xiao-ping
|
Based
on timed colored Petri net, directed graph theory, synthesis and
simplification technique of Petri net, combined with typical
examples of cigarette-packing product workshop, this paper
analyses automated guided vehicle system(AGVS) and proposes
timed colored Petri net and directed graph model of AGVS. The
model includes a timed colored Petri net model for the
development of simulation software, a directed graph model for
path optimization and the algorithm to generate the timed
colored Petri net model from a directed graph model. An AGVS
simulation software “AGVSim” has been successfully developed
based on this model |
|
Hybrid
System and Its Modeling
|
XUE
Le, LIAO Mo, WEI Chen, CHEN Zongji
|
Based
on the introduction of the conception, characteristic,
up-to-date development and framework of hybrid systems, a
summary of hybrid system modeling is given. This paper focuses
on the modeling methods, including Equivalent Discrete Event (EDE)
model, hybrid automata, petri nets, duration calculi and its
extension. Finally, some primary results and methods of
simulation are summarized. |
|
A
Method of Quantifying the Qualitative Control Law of
Human-imitating Intelligent Control
|
SI
Chang-Long , ZHANG Ming-lian
|
Human-imitating
control is a theory based on analyses of the physical model of
the controlled system and using generalized stipulations to get
a qualitative control law. But there are still plenty of
shortcomings in this theory, when the qualitative control law is
converted into the quantitative control law. In this paper a
method of parameter-optimization is presented.
The general control
knowledge is included in the method to increasing the method
constriction. |
|
Simulation
of AC Asynchronism Motor Vector Control System Based on Matlab
|
JI
Zhi-cheng,
XUE
Hua,
SHEN
Yan-xia
|
Based
on the mathematical model of AC asynchronism motor, a novel
method for modeling and simulation of AC asynchronism motor
control system in Matlab has been proposed. In Matlab/Simulink,
the independent functional blocks, such as Moter model block,
Vector control block, Speed controller block, and Hysteresis
current controller block etc, have been modeled. By the organic
combination of these blocks, the model of control system can be
established easily. In the double loop of control system, a PI
controller is adopted in the speed loop and a hyteresis current
controller is adopted in the current loop. The reasonability and
validity have been testified by the simulation results and this
novel method offers a new thoughtway for designing and debugging
actual motors |
|
Research
on Algorithm of Evaluating Communication System Performance
|
WANG
Cong, JIANG Guang-jie
|
Modeling
and simulation technologies provide an effective method to
evaluate the giant complex system performance. Based on cloud
model, this paper provides a method of evaluating system
performance. The method uses cloud theory to implement the
transition between qualitative values and quantitive values. It
starts with the uncertainty of the system, uses the theory of Analytic
Hierarchy Process (AHP) for reference, and
makes the result of evaluation more accuracy. It has been proven
flexible to use this method in evaluating complex system
performance. |
|
The
Method of Life Cycle Cost Analysis for Torpedo Weapon System
|
LIANG
Qing-wei, SONG Bao-wei, PAN Guang, LI Zheng
|
This
article reviews the main methods of life cycle cost analysis,
including six methods of life cycle cost modeling and four
methods of life cycle cost- effectiveness estimate. It analyses
the application area of these methods, contrasts the advantage
and disadvantage of them, and discuses the problem in this field
and forecasts the development in this field. This article can
provide a usable methodology for the life cycle cost analysis of
torpedo weapon system. |
|
A
Object-oriented Modeling and Realization Method for Simulation
and Training System in Satellite Communication
|
ZHAN
Ronghui,
CHEN
Weibing,
ZHENG
Linhua,
WU
Yaling
|
Simulation
and Training System plays great role in technology train because
of many of its own merits. With object-oriented modeling, and
combined with simulation algorithm and database technology, a
new method is put forward in this paper on the basis of the
system modularization about the characteristics of the practical
satellite communication system to realize the Simulation and
Training System, which is conveniently operated, easily
maintained, readily upgrated and powerfully functioned.It
provides vivid virtual environment for simulation operation of
the satellite communication equipment. At the same time, the
application of multimedia technology in this system has received
better results than in real-equipment training because of its
powerful expressive force. |
|
Analyse
of Bandwidth Utilization Rate of AAL Cell in CDMA System Using
MATLAB
|
HE
Jia-ming, SU Yong, GAO Xiang, YU
Xiao-jun
|
In
this paper, the study and analyse of the AAL2 protocol
application in mobile communication based on MATLAB are
introduced. This paper first introduces the basic concept of
AAL2 protocol of CDMA system, and then puts forward a kind of
approximate calculation to analyse the relation between
parameter τ and cell bandwidth
utilization rate. Finally
through computer emulation based on MATLAB, the theoretical
result has been verified. |
|
Model
and Estimation Algorithm of a Class of Dynamic Multiscale System
|
CUI
Peiling, PAN Quan, ZHANG Lei, ZHANG Hongcai
|
Multisensor
fusion is an important research area in information subject, and
the purpose of this paper is to fuse the multi-sensor
information that is distributed at multiscale. On the basis of
the related research, a new dynamic multiscale system (DMS)
modeling method of a class of dynamic multiscale system is
proposed in this paper. This model satisfies standard Kalman
filter conditions. The realization method based on Haar wavelet
is proposed. The linear
minimum mean-square error
estimation at each scale can be obtained by our method. Simulation
results are given to obtain insight into the efficiencies
offered by our model and algorithm. At the finest scale, the
estimation by our method is better than that is gained by
performing Kalman filter directly. |
|
The
model of Multisensor Data Fusion effect in base of Lanchester
|
YIN
Hang, LI Shao-hong
|
In
this article the classic Lanchester equation and the improved
Lanchester equation are introduced, and a new model that is
based of improved Lanchester equation is brought forward for the
effective analysis of multisensor data fusion (MSDF) system. The
effect of MSDF system for Lanchester equation is estimated in
this model, and the model is also used in the effect analysis of
C3I system. |
|
An
Algorithm of Filtering Junk Mails based on Cognition-Learning
and Minimum Risk Naïve Bayes
|
WANG
Lei, LIN Ya-ping, PENG Ya, LI Wen
|
A
new expression of Email vectors in super-high dimensional
vectors space, and an innovative algorithm of filtering
junk-mails based on the consideration of risks of false
discretion are proposed in this paper, which can minimize the
risks of mail filtering by imitating the cognition learning
process of human beings, and combining the method of system’s
classification and user’s discretion. Experiment results show
that the new algorithm can achieve satisfying performances in
the mail filtering applications. |
|
Design
and Implement of Real-time Visualization Simulation System on
Virtual Cockpit…..
|
.XUE
Feng,
OUYANG
Zhong-hui,
XIE
Xiaofang
|
Firstly,
the paper expatiates on the application of VR to the area of
virtual cockpit simulation system, and constructs the object and
terrain scene models by 3D visual database. Secondly，real-time
application programs are used to drive the scene animation. At
last, we implement real-time visualization simulation system on
virtual cockpit. The system can fulfill the demand of real-time
attribute completely, which puts forward new solution to the
real-time creation of visual scene on virtual cockpit simulation
system. |
|
Simulation
Development of Submarine Combat System for Stealthy Attack Based
on HLA
|
LIU
Jian, LIU Zhong, YAN Bing
|
Based
on HLA, the hardware and software architecture of submarine
combat simulation system for stealthy attack are introduced
first, next the function and simulation design of submarine’s
command & control system are presented, and then the object
class and interaction class of simulation are developed. Finally
the whole block diagram of simulation system is given. |
|
Study
on Neuron Realization of one Class of Two Degree-of-Freedom PID
|
LIN
Rui-quan, QIU Gong-wei, LUO Wang-chuen
|
In
this paper, we propose the neuron
PID controller which
is derived from incomplete two degree-of-freedom PID algorithm
of P-I-PD. Simulation research using MATLAB/SIMULNK software of
this control method applying in tunnel-like oven is presented.
Also the simulation results are given. The simulation results
show that neuron P-I-PD controller not only has the advantage of
two degree-of-freedom PID, but also has the self-adaptive
features of neuron, the characteristics of tracking set-value,
anti-interference and robustness can be improved. |
|
Research
on Entity’s Behavior in the Ground Battle Simulation System
|
YANG
Rui-ping, Yuan Yi-min, HUANG Yi-bing, GUO Qi-sheng
|
In
this paper, the importance of research on the entity’s
behavior in the ground battle simulation system is introduced.
The interactions among entities’ behavior are studied.
Further, combining with application purpose and characteristics
of simulation entities’ behavior, the influence of entities’
behavior on the system application result is discussed, and some
improvements are put into practice. The results demonstrate that
the betterment of entities’ behavior is an important factor in
the change of system simulation result. In the last, two methods
are introduced for the verification and validation of
entities’ behavior. |
|
Eco-Industry
System——A
Open Complex Giant System
|
ZHANG
Wen-hong, CHEN Sen-fa
|
Industrial
Ecology is a new science. With its guidance, eco-industry system
has been developed to be the main body in the world industry.
Eco-industry system is argued to be an open complex giant
system, which is discussed in details from the viewpoint of
system methodology in this paper. The characteristics of the
system are openness,
complexity, evolution, emergence, hierarchy and giant etc.
Then with the idea of openness, using HWME, a new method is
proposed to design the eco-industry system. Intelligent control
techniques, response surface methodology and the design of
experiments and integrated within the framework of the nonlinear
multiobjective DSP to develop a robust,
top-level design specification. |
|
The
Design And Implementation of A Universal Integrative Simulation
Platform Software
|
CUI
Huai-lin, XIAO Hua-kun, YANG
Yun-chuan, XIE Zan-fu, LI Zhi-shun
|
This
paper aims to make a brief study of the concept model and design
realization method of a universal integrative
simulation
platform. As we all know, it is not only the modeling,
simulation, analysis, visualizing of various engineerings and
practical projects can be operated by means of the developed
simulation platform, but a common industrial processing control
system can also be real-time simulated and monitored at the
simulation platform, which can support friendly other simulation
systems or exchange data and share sources with other simulation
systems. The software platform has been successfully applied
into some practical industrial processing simulation control
systems, decision support analysis system and university’s
experiment simulation teaching system to make good profit both
economically and socially. |
|
The
Arithmetic of Defilade Angle for Radar Simulator Based on DIS
and It’s Application
|
LI
jian, Xiao ming, Mahong
|
The
minimum elevation at which the radar set can discover a target
in a certain direction is called defilade angle. The measurement
and plotting of defilade angle is a very important training
subject even if using real radar set. We scheme out the
arithmetic of defilade angle for radar simulator by using the
method of coordinates
conversion and linear
interpolation
after the study about the map data format. It has been proven by
experiment that the arithmetic is valid and in real time. |
|
Study
of DDM in IEEE
|
YANG
Jian-chi, REN Chun-li, HUANG Ke-di
|
This
paper discusses in detail the Data Distribution Management
mechanism in IEEE1516. Firstly, it compares IEEE1516 with DoD
V1.3 briefly, and then analyzes the improvement on DDM of
IEEE1516 in detail and presents a kind of rapid
region-overlapping algorithm. |
|
The
Problem of Formation Adjustment in Aircraft Federate Development
|
LIU
Baohong,
QIU Xiaogang, HUANG Ke-di
|
In
the HLA federates development, there are two types of
object communication methods: (1) objects communication between
federates are through RTI; (2) objects communication in one
federate uses usual object-oriented method. But in some special
circumstances, the object communication type may change
dynamically. To solve this problem, we suggest four methods: (1)
using interaction through RTI uniformly; (2) using ownership
transformation; (3) partitioning federate so as we can use only
one type of communication methods; (4) using framework based
method. We analyze the feasibility of these methods and discuss
the framework-based method in detail. |
|
Simulation
research of DMC-PID Cascade for Water Level System of a Drum
Boiler Steam Generator
|
LIU
Hong-jun, HAN Pu, WANG Dong-feng
|
In
view of water level control system, based on the merits of
Dynamic Matrix Control(DMC), cascade control and PID control,
and after presentation of the DMC algorithm for systems with
measurable disturbance, this paper puts forward a DMC-PID
transparent control strategy for water level control system. PID
control is used in inner loop to stable the controlled plant and
to overcome the disturbance of water-feed quantity quickly, DMC
algorithm with feedback compensation is adopted in outer loop,
which takes the PID controller and controlled plant as a
generalized controlled object. The strong robust stability of
DMC guarantees good regulating performance while controlling
plant varies. Computer simulation results show that the control
strategy is effective and practical. |
|
The
Impacts of Sub-Carrier-Number on MC-CDMA System’s Performance
|
YE
Yong-tao, SONG Bo, WANG Ting-chang, YI Xiao-xin
|
The
relationship between performance and the number of sub-carriers
in MC-CDMA system is analyzed in theory, with criterion of
sub-carrier’s
SJR
in receiver. The
conclusions
are derived
that the sub-channels should be frequency unselective channels
when choosing the number of sub-channels,
and after that, system performance can’t be improved
accordingly as the number of sub-channels increases, but the
system realization complexity and peak to average power ratio
are increased, so N can’t be too large; and system performance
even will degrade as the number of sub-carrier increasing when
SNR is very high. Simulation results using system level
simulation software SPW are given out at last. |
|
Research
of Computer Simulation on Route Planning of Low Altitude
Penetration
|
MA
Xiang-ling，YE
Wen，FAN
Hong-da
|
The
development of route planning of low altitude penetration is
introduced briefly. Three main methods, such as dynamic
programming, electron potential energy, heuristics searching are
also introduced and analyzed. The paper primarily analyzes genetic
algorithm, and presents a new improved method of the traditional
genetic operation. In the route planning the approach angle to
goal position is considered. Simulation results show that this
is a perfect method for route planning of low altitude
penetration. |
|
A
Recursive Algorithm of Error Covariance Matrix of Moving Horizon
Estimation
|
WANG
Zhao, LIU Zhiyuan, BAN Xi-guang, PEI Run
|
This
paper proposes an algorithm of the prior estimation state and
the covariance matrix for linear moving horizon state
estimation. We present the prior estimation state scheme and
derive the error covariance matrix with correspondence to the
estimation state. Compared with other approaches for moving
horizon state estimation, the proposed method in this paper can
improve the estimation performance. |
|
Simulation
Research on Fractional-order
Controller
|
ZENG
Qing-shan，CAO
Guang-yi，WANG
Zhen-bin
|
PID
control is the most common control method used in process
control. Fractional-order
control is the
generalization and development of the integer-order PID control.
In this paper, the control properties and parameters tuning of
the fractional-order
controller are
investigated by using the mapping root locus. The simulation
results show that fractional-order controller is not sensitive
to the changes of control parameters and system parameters. It
has flexible structure and stronger robustness. |
|
Research
for Millimeter Wave Radiometric Target Detection Simulation
|
GUO
Wei,
ZHANG
Guang-feng,
ZHANG
Zu-yin
|
Widely
used in guidance and remote sensing, millimeter wave radiometer
is a typical microwave passive detection system.
It is effective and economical to develop its simulation
software system. In this paper, it mainly
introduces the method of building target detection model and
designing system structure.
According to working procedure and working environment of
the preset radiometer, the radiometric
target detection simulation system has been developed.
It has exactly simulated radiometer by the working order,
working environment and working parameters. Thus the output
result is able to improve and optimize the hardware system. |
|
Evaluating
the Effectiveness of submunition Based on Pixel-Simulation
|
CHEN
Li-xin，CHEN
Wan-chun，YIN
Xing-liang
|
Based
on Pixel-Simulation proposed by the author, this paper
simplifies the algorithm of calculating damage area of
submunition in its effectiveness evaluation, and obviates the
mathematic problem of calculating overlapping damage area of
submunition, by using Monte Carlo method and computer graphics
technology. This algorithm has been proven simple, reliable in
accuracy and with many uses, and has become an universal
algorithm for computing damage area with overlap. |
|
A
Numerical Algorithm for Fractional Order Dynamic Systems
|
WANG
Zhen-bin, CAO Guang-yi
|
A
very efficient numerical algorithm for solving fractional order
dynamic systems is given. This algorithm not only has a simple
formula, which is easy to program, but also has the virtue of a
high precision and fast computation time. The main reason is
because in actual applications it is usually needed that a given
function must have enough continuities and smoothness, and that
its Riemann-Liouville and Grünwald-Letnicov
fractional derivatives are equivalent. This makes it possible to
approximate Riemann-Liouville fractional derivatives by using
the first order or higher order approximation of Grünwald-Letnicov
fractional derivatives in fractional order dynamic systems. An
example is given to indicate the effectiveness of the method
aforementioned. |
|
The
Design and Simulation of a T-S Type of Rough Fuzzy Controller
|
HUANG
Jin-jie, LI Shi-yong,
ZUO
Xing-quan
|
A
new type of rough fuzzy controller is proposed. The design of
the controller combines the rough logic with fuzzy inference. In
this approach, rough set theory is used to find the minimal set
of rules of input-output space, and by complementing the
information of output control corresponding to the rough reduced
rules, a T-S type of rough fuzzy control system is constructed,
which can derive control rules from input-output data
effectively and can solve the problem that the number of rules
in a fuzzy controller increases exponentially with the number of
variables involved. The simulation for controlling the inverted
pendulum with a varying length of pole shows that a highly
precise nonlinear control is achieved. |
|
Research
on the Temperature Field of the Underground Straight Buried Pipe
with hot medium
|
PANG
Li-ping,
WANG Jun
|
Based
on analyzing the change of atmosphere with the season, a
mathematic model of heat transfer about the straight buried pipe
is established, and the numerical theory method has been applied
to solve the temperature field around the pipe with hot media,
on the basis of which the circumstance of dispersing heat is
computed. Compared with the traditional one, the new mathematic
model takes into account the influences of the change of
atmosphere temperature with the season and the earth constant
temperature layer, and changes infinite region into finite
region. The influence of soil around pipeline in calculation
occurring uneven hot heterogeneity is considered, which improves
the accuracy of results. After being compared with measured
temperature fields, the new mathematic model is correct and has
high accuracy, so as to reflect practical instance. |
|
Build
and Mask Custom Block in SIMULINK
|
HU
Lin-jing , SUN Zheng-shun
|
The
method to build and encapsulate user custom algorithmic block is
presented using S-Function in SIMULINK. We programmed
efficiently M resource file to perform algorithmic based on the
program frame of S-Function. The program is proven valid by
testing model. The example presents that S-Function custom
algorithmic block can reduce the programming engineers，workload,
and simplify complex blocks group. In addition, it can visualize
a process being simulated. S-Function extends application fields
of SIMULINK as well as simplifies digit simulation course. |
|
Research
on Combination Design Algorithm of Identification and Control
|
CAO
Jiangtao, LI Ping, JI Xiaofei
|
System
identification is of critical importance for implementing
advanced control in the industries. As a result, the combination
of identification and control, which views the identification
problem in terms of its interaction with control system design,
is a topic that possesses significant practical impact. In this
paper, identification criteria are combined with control
property via control-relevant pre-filtering. Its aim is to
improve dynamic property of control system. And the pre-filter
is easy to practice in the process industries. For overcoming
the disturbance effect on the plant, coprime factor
identification algorithm is used. It coverts the closed loop
data to two open loops data by using open loop conversion idea.
Then we can get two open loop transfer functions. At last we get
system model on the grounds of equivalent relation to restrain
the effect of disturbance. The simulation results show the
availability of this algorithm. |
|
Predictive
PID Control Simulation for A Class of MIMO Systems
|
LI
Lin-huan, SU Hong-ye, CHu Jian
|
For
a class of multivariable systems, the tuning of PID controller
parameters is discussed in this paper. Based on the idea of GPC
and the relation between
GPC and PID controllers, a new tuning algorithm of PID
controller parameters for discrete multivariable systems is
presented. The optimal index induces the weighting term on the
square of error between the predicted process steady-state value
and the desired-state value. The PID controller parameters are
calculated recursively based on the relationship between the
GPC and PID control laws. The simulation results show the
effectiveness of the proposed method. |
|
The
Frame of OFDM System Simulation DesignSUN Xiaodong,
|
YU
Quan, WANG Hongxing, WEI Kejun, DAI Weiheng
|
The
technology of OFDM (Orthogonal Frequency Division Multiplexing)
has been applied broadly in the transmission of high-speed data,
especially in wireless access and mobile communication, where
OFDM has very wide perspectives. According to the experiments in
practice, by analyzing the key techniques of OFDM, the basic
frame of OFDM system simulation design is presented. Finally,
the process of design and results of simulation are given
according to an example. |
|
Simulation
on An Estimation Method of Air Target Parameters
|
LIN
Du，CAO
Feng-cai i
|
There
are two detecting and tracking modes for air targets, initiative
mode and passive mode. The working principle of initiative mode
is that detecting and tracking devices send some signals at
first, which barge up against the targets and produce returning
signals, and then detecting and tracking devices obtain the
information about the targets by the returning signals. The
working principle of passive mode is that detecting and tracking
devices, without sending any signals, obtain the information
about the targets only by the detecting signals producing from
the targets. A parameter estimating method for air targets is
presented in this paper. It can obtain the bearing angle and
pitching angle of the targets while the distance of the targets
is unknown, so the passive detecting and tracking is realized.
The statistical characteristics of the estimating error are
analysis. The availability of the method is verified by
simulation results. |
|
Text
Information Extraction Based on Hidden Markov Model
|
LIU
Yun-zhong, LIN Ya-ping, CHEN Zhi-ping
|
Text
information extraction is an important method of processing
large quantity of text. The application of hidden Markov model
to information extraction is a relatively new research topic. A
new algorithm based on hidden Markov Model is proposed for text
information extraction. The algorithm makes use of the
information of format and list separators to segment text, and
then combines hidden Markov model for text information
extraction. The simulation results show that the new algorithm
exceeds the original one that hasn’t segment text into blocks
in precision and recall. |
|
Analysis
of Enterprise Modeling Methodology and Evaluation of Modeling
oolsl
|
ZHANG
Xiao-ming, DENG Zi-qiong
|
