Design and research of signal-level airborne electronic reconnaissance simulation system

2018 ◽  
Vol 09 (04) ◽  
pp. 1850030 ◽  
Author(s):  
Yang Zhao ◽  
Chaoxuan Shang ◽  
Zhuangzhi Han
Keyword(s):  
Mathematical Model ◽  
Euclidean Distance ◽  
Simulation System ◽  
Test Results ◽  
Simulation Test ◽  
New Thought ◽  
Model And Simulation ◽  
Electronic Countermeasure ◽  
Simulation Results ◽  
Good For

Airborne passive electronic reconnaissance equipment has developed rapidly during recent years. However, because of its expensive and unavailable military features, the simulation realization of these equipment needs to be solved. And the smaller the simulation particle is, the better the simulation system will be. In this study, a signal-level airborne electronic reconnaissance simulation system was built. Mathematical model and simulation realization of each part are introduced in this study. Focusing on the shortness of traditional signal sorting methods, we creatively proposed a presorting method based on the Euclidean distance inside signal flows. Simulation results show that the presorting method based on Euclidean distance successfully reduced the pressure on main sorting and appeared good for signal sorting. Simulation test results of each model built in this study are also shown in the study. This study provides a new thought on the realization of airborne electronic reconnaissance equipment and benefits the development of electronic countermeasure.

Analysis and Simulation System for Stepper Motor Controller

2013 ◽  
Vol 457-458 ◽  
pp. 938-943
Author(s):  
Rong Chun Sun ◽  
Ming Qiu Li
Keyword(s):  
Precise Measurement ◽  
Simulation System ◽  
Test Results ◽  
Cnc Machine ◽  
Simulation Test ◽  
Test Analysis ◽  
Motor Controller ◽  
Stepper Motors ◽  
Motor Load ◽  
The Many

Stepper motors are wildly used in the many fields, such as CNC machine, motion robot, aeronautics and astronautics. To realize online precise measurement, error analysis and verification of control strategy, it is necessary to sample and analyze the driving signals of motors, and simulate mechanical motion in a computer. So a test, analysis and simulation system of stepper controllers was designed. Driving signals of stepper motors are synchronously sampled and analyzed by the unit of acquisition and analysis. A connecting Motherboard was used to link the various parts and finish the data transmission. The working states of motor divers under load were simulated by connecting motor driver to the simulation board of motor load. In the industrial computer, the control effects of multi-axis control system were displayed by 3D simulation. Test results show that the system is stable and reliable, and has a certain application value.

Stiffness Performance Simulation and Testing of a New Type Integrated Suspension Strut

2012 ◽  
Vol 472-475 ◽  
pp. 2760-2765
Author(s):  
Hao Bin Jiang ◽  
Ying Jun Du ◽  
Shen Chen Ye
Keyword(s):  
Mathematical Model ◽  
Fluid Mechanics ◽  
Vertical Vibration ◽  
Bench Test ◽  
Test Results ◽  
Performance Simulation ◽  
Body Roll ◽  
New Type ◽  
Simulation Results ◽  
Stiffness Characteristics

The design scheme of a new type strut was put forward, whose stiffness characteristics can undertake linkage control. The structure and basic principle of this new suspension component were introduced. According to fluid mechanics and thermodynamics, a mathematical model for the stroke dependent stiffness characteristics of the strut was established, and the stiffness characteristics were analyzed by using software SIMULINK. Then the stiffness performance bench test of the strut specimen was carried out for verification. Results show that the test results agree well with the simulation results. It is verified that the established mathematical model is correct and the stiffness of this strut shows nonlinear changes vary with the displacement of piston. When the suspension is largely impacted, the stiffness of this strut increases quickly which could restrain the wheel bouncing, body roll and vertical vibration.

The Control and Model of Synchronous Generator on Ship

2012 ◽  
Vol 195-196 ◽  
pp. 1095-1101
Author(s):  
Le Luo ◽  
Lan Gao ◽  
Liang Chen ◽  
Liang Hu
Keyword(s):  
Mathematical Model ◽  
Control System ◽  
Simulation Model ◽  
Synchronous Generator ◽  
Excitation Control ◽  
Synchronous Generators ◽  
Simulation Test ◽  
Power Station ◽  
Model And Simulation ◽  
The Mathematical Model

This paper analyzes the characteristics of marine power station. The mathematical model and simulation model of synchronous generators AVR+PSS excitation control system was built. At last the simulation test of suddenly add load was did in MATLAB/simulink environment. The result shows that the excitation control system has well stability, rapidity and some robustness.

Test and Simulation System of Multi-Axis Controller

2013 ◽  
Vol 860-863 ◽  
pp. 1069-1072
Author(s):  
Rong Chun Sun ◽  
Yan Xin Yu
Keyword(s):  
Control System ◽  
Error Analysis ◽  
Real Time ◽  
Control Strategy ◽  
Simulation System ◽  
Test Results ◽  
Simulation Test ◽  
Motion Mechanism ◽  
Simulation Unit ◽  
Time Acquisition

To realize the online error analysis and verification of control strategy, it is necessary to simulate the states of the motion mechanism, and accurately to obtain the motion relationship between multi-axis and between motors. So a test and simulation system of multi-axis controller was designed. The system consists of a unit of real-time acquisition and analysis, a simulation unit of motor loads, a motherboard and a computer. Motor driving signals for multi channels are synchronously sampled and analyzed by the unit of acquisition and analysis. Motherboard is used to link the various parts. The working states of motor divers under loads are simulated by simulating the motor loads. In the industrial computer, the control effects of multi-axis control system are displayed by 3D simulation. Test results show that the system is stable and reliable, and has a certain application value.

Design of 2_DOF Simulation Platform for the Testing of Airborne Laser Communication APT System

2014 ◽  
Vol 989-994 ◽  
pp. 3683-3688
Author(s):  
Li Xin Meng ◽  
Ding Xuan Zhao ◽  
Yang Yang Bai ◽  
Li Zhong Zhang
Keyword(s):  
Mathematical Model ◽  
Control System ◽  
Closed Loop ◽  
Laser Communication ◽  
Motion Simulation ◽  
Vector Method ◽  
Kinematics Model ◽  
Airborne Laser ◽  
Model And Simulation ◽  
Simulation Results

Lightweight, flexible motion simulation is the demand of airborne laser communication optical transceive when apply to outside test. A new parallel 2_DOF platform that has the function of azimuth and pitching is put forword based on the analysis of airplane position-pose changes affect the performance airborne laster communication APT system, and the kinematics model is established by using closed-loop vector method. Kinematics model is right through the comparison of mathematical model and simulation results of ADAMS, which provides the reference and basis for the design of control system.

FPGA-Based Design of P-Detection 1-Persistent CSMA Control System

2014 ◽  
Vol 602-605 ◽  
pp. 933-936 ◽  
Author(s):  
Zheng Gang Liu ◽  
Hong Wei Ding ◽  
Jia Long Xiong ◽  
Qian Lin Liu ◽  
Xiao Hui Ma
Keyword(s):  
Mathematical Model ◽  
Control System ◽  
System Performance ◽  
Communication Protocol ◽  
Test Results ◽  
Fpga Design ◽  
Simulation Results ◽  
Communication Control ◽  
The Mathematical Model ◽  
Waveform Simulation

In this paper, we propose P-detection and 1-Persistent CSMA/CA protocol. Using average cycle method, we established the mathematical model of the protocol. Through derivation, we obtain the throughput expression of this protocol. Simulation results show that this protocol improves the throughput and it is effective to enhance the system performance. Using this protocol, we completed the FPGA design of communication control system in WSN. The product passed waveform simulation and it is downloaded to the DB2 platform. Test results confirm the throughput of system has been increased, achieving the improvement of communication protocol for WSN.

ZPW-2000 Track Transmission Network Modeling and Analysis

2014 ◽  
Vol 494-495 ◽  
pp. 1468-1472
Author(s):  
Bin Huang
Keyword(s):  
System Model ◽  
Transmission Network ◽  
Test Results ◽  
Modeling And Analysis ◽  
Model And Simulation ◽  
Preliminary Study ◽  
Simulation Results ◽  
Track Circuit ◽  
Field Device ◽  
Device Test

In order to study and improve the track circuit system,we preliminary study and model for ZPW-2000A no track circuit transmission network of automatic block for in china, through the insulation of domestic ZPW-2000 no track circuit transmission network system model and simulation,we verified that the simulation results and field device test results is consistent . Simulation results show that the track circuit transmission network mathematical model is correct and effective, for further study made ZPW-2000 laid the foundation for the track circuit.

Computer Simulation of Controlled Hydraulic Impactor System

2011 ◽  
Vol 179-180 ◽  
pp. 122-127 ◽  
Author(s):  
Guo Ping Yang ◽  
Jun Hao Gao ◽  
Bo Chen
Keyword(s):  
Mathematical Model ◽  
Simulation Environment ◽  
Opening Pressure ◽  
Impact Performance ◽  
Model And Simulation ◽  
Working Principle ◽  
Simulation Results ◽  
Working Performance ◽  
New Generation ◽  
Pilot Valve

In view of general impactor whose parameters can’t be adjusted continually in different conditions, a kind of controlled hydraulic impactor is introduced. Its non-linear mathematical model and simulation model are established. In simulation environment, adjusting opening pressure of pilot valve, supply oil volume and charging pressure of accumulator respectively, influences on the working performance are investigated. Simulation results prove that, working principle of controlled hydraulic impactor is available and its impact performance is superior to traditional impactor. This provides theory basis for innovation and production of a new generation impactor.

scholarly journals Design Process of a Helical Flux Compression Generator

2018 ◽  
Vol 215 (4) ◽  
pp. 29-45
Author(s):  
Mariusz Makowski ◽  
Marta Czarnowska ◽  
Karol Biernacki ◽  
Rafał Namiotko
Keyword(s):  
Design Process ◽  
High Explosive ◽  
Field Tests ◽  
Mechanical Parameters ◽  
Test Results ◽  
Explosive Material ◽  
Model And Simulation ◽  
Flux Compression ◽  
Inner Diameter ◽  
Simulation Results

Abstract The article demonstrates the design process of a flux compression generator. Several armature configurations and materials have been analyzed. The influence of mechanical parameters, such as wall thickness, inner diameter of the armature or high explosive material used, on FCG performance has been estimated. The geometry of generators’ components has been optimized using the Finite Elements Method. Several generators have been built based on mathematical model and simulation results. The designed FCG’s performance has been verified during field tests. A comparison of simulation and field test results has been presented.

scholarly journals A Novel Deceptive Jamming Approach for Hiding Actual Target and Generating False Targets

2021 ◽  
Vol 2021 ◽  
pp. 1-20
Author(s):  
Shahid Mehmood ◽  
Aqdas Naveed Malik ◽  
Ijaz Manssor Qureshi ◽  
Muhammad Zafar Ullah Khan ◽  
Fawad Zaman
Keyword(s):  
Mathematical Model ◽  
Radiation Pattern ◽  
Radar System ◽  
The Novel ◽  
Novel Approach ◽  
Electronic Countermeasure ◽  
Deceptive Jamming ◽  
Frequency Diverse Array ◽  
Simulation Results ◽  
Actual Target

Deceptive jamming is a popular electronic countermeasure (ECM) technique that generates false targets to confuse opponent surveillance radars. This work presents a novel approach for hiding the actual target while producing multiple false targets at the same time against frequency diverse array (FDA) radar. For this purpose, the modified FDA radar is assumed to be mounted on the actual aircraft. It intercepts the opponent’s radar signals and transmits back to place nulls in the radiation pattern at the desired range and direction to exploit FDA radar’s range-dependent pattern nulling capability. The proposed deceptive jammer produces delayed versions of the intercepted signals to create false targets with multiple ranges to confuse the opponent’s radar system. The novel mathematical model is proposed whose effectiveness is verified through several simulation results for different numbers of ranges, directions, and antenna elements.

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