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2020

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Articles 1021 - 1050 of 1664

Full-Text Articles in Numerical Analysis and Scientific Computing

Hybrid Quantum-Behaved Particle Swarm Optimization Algorithm For Solving Mould Job Shop Scheduling Problem, Zhou Kai, Wang Yan, Zhicheng Ji Jun 2020

Hybrid Quantum-Behaved Particle Swarm Optimization Algorithm For Solving Mould Job Shop Scheduling Problem, Zhou Kai, Wang Yan, Zhicheng Ji

Journal of System Simulation

Abstract: Quantum-behaved particle swarm optimization has better performance compared with particle swarm optimization, but it still has the problem of getting trapped into local optimum with premature convergence. According to the above problem, a hybrid algorithm included quantum-behaved particle swarm optimization and bat algorithm was proposed. On the one hand, the random walk strategy of bat algorithm was used to avoid getting into local optimum, on the other hand, the speed changing of bats’ sound was learned to transform the factor of quantum-behaved particle swarm optimization. The proposed algorithm was tested on five benchmark functions and a mould job shop …

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Study On Model-Based Visual Servoing With Reconstructed 2d Features, Guoliang Zhang, Jixiang Du, Zhanni Wang, Wang Tian Jun 2020

Study On Model-Based Visual Servoing With Reconstructed 2d Features, Guoliang Zhang, Jixiang Du, Zhanni Wang, Wang Tian

Journal of System Simulation

Abstract: To overcome the defect of camera retreat in image based visual servoing, a model-based visual servoing incorporated 2D image based visual servoing with 3D features was proposed. The robot visual servoing model was established by altering traditional two dimensional feature to three dimensional features based on traditional IBVS control structure. Furthermore, combined with the Simulink software, simulation model was established and motion characteristics of two methods were analyzed and compared in image space and Cartesian space. The experiment results confirm the feasibility and effectiveness of the proposed method.

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Stochastic Kriging For Random Simulation Metamodeling With Known Uncertainty, Wang Bo, Gea Haechang, Junqiang Bai, Yudong Zhang, Gong Jian, Weimin Zhang Jun 2020

Stochastic Kriging For Random Simulation Metamodeling With Known Uncertainty, Wang Bo, Gea Haechang, Junqiang Bai, Yudong Zhang, Gong Jian, Weimin Zhang

Journal of System Simulation

Abstract: Uncertainty-based design has been widely carried out these years. In order to deal with the problems with large amount of calculation, a stochastic kriging for random simulation metamodeling with known uncertainty was derived, which firstly included intrinsic uncertainty in metamodel initial formulation to fully account for inputs uncertainty, and then incorporated the correlationships of intrinsic uncertainty among all observed points. Several examples with known uncertainty were also conducted, in which the proposed method shows much better variance predictions than other similar methods. Simulation results show the proposed method is a more general form of kriging, which can also …

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Improved Dv-Hop Localization Algorithm Based On Average Hopping Distance And Position Optimization, Zhipu Zhao, Wu Dong, Wang Yan, Zhicheng Ji Jun 2020

Improved Dv-Hop Localization Algorithm Based On Average Hopping Distance And Position Optimization, Zhipu Zhao, Wu Dong, Wang Yan, Zhicheng Ji

Journal of System Simulation

Abstract: To overcome the low positioning accuracy caused by the imprecise estimated distance and the accumulative location error, an improved DV-Hop localization algorithm based on Wireless Sensor Network was proposed. This method, taking the summation of the beacon node average jump distance based on the weighted error correction as its average distance, was used to reduce the average jump distance error. Besides, an improved least square method was used to process the accumulative location error. The simulation results show that the improved localization algorithm performs greatly better, both in distance estimation and positioning accuracy, than the traditional DV-Hop localization algorithm, …

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Node Selection Of Collaborative Tracking Based On Particle Filter, Chen Ying, Xuexue Cheng Jun 2020

Node Selection Of Collaborative Tracking Based On Particle Filter, Chen Ying, Xuexue Cheng

Journal of System Simulation

Abstract: Due to the problem of target tracking in video sensor networks, a new algorithm was proposed for cooperative monitoring and tracking of node selection based on particle filter. The method obtained posterior distribution through particle filtering in tracking problem and got the information entropy to evaluate the estimate uncertainty. Background modeling and the phase division were applied to extract target blob, and pixels number of the target blob was calculated to measure detection information. Confidence measure of nodes was determined based on the two factors to realize the optimization of the selected node and then track by particle filter …

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Research On Mathematical Models Of Damage Probability Approximate Computation Of Cargo Projectile, Zhaosheng Wang Jun 2020

Research On Mathematical Models Of Damage Probability Approximate Computation Of Cargo Projectile, Zhaosheng Wang

Journal of System Simulation

Abstract: The scatter size of the bomblet of cargo projectile is large by comparison with the casualty producing area of single target. In order to promote computational efficiency, and to study optimum spread area of cargo projectile and the most advantageous fire distribution conveniently, mathematical models of damage probability approximate computation of cargo projectile on small rectangular target and circular target with single-shot fire, and correlation fire that firing is on identical data were established by probability analysis. The simulation method was discussed. The optimal dispersion areas were put out according the approximate computation model of single-shot fire. …

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Method Of Hardware-In-The-Loop (Hwil) Simulation For Pose Movement Of Vertical Launching Aerocraft With Continuous Rotation In Yaw, Chengsheng Liu, Zhang Qing Jun 2020

Method Of Hardware-In-The-Loop (Hwil) Simulation For Pose Movement Of Vertical Launching Aerocraft With Continuous Rotation In Yaw, Chengsheng Liu, Zhang Qing

Journal of System Simulation

Abstract: There are defects in the pose movement simulation of vertical launching aerocraft which can circumrotate continuously in yaw with three -axis flight motion simulator. Based on analysis of these defects, a four-axis project which could be applied to the situation of the changing range of vehicle pitch pose and vehicle roll attitude more than ±180° and the changing range of vehicle course pose towards infinite greatness was proposed. The structure of the four-axis flight motion simulator was analyzed and the control model was made. Above all, a four-axis concerted control law was designed with" switching movement mechanism", and a …

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Research Of Intrusion Alert Aggregation Based On Spatial And Temporal Density, Zhang Jing, Hengjun Wang, Junquan Li, Bin Yu Jun 2020

Research Of Intrusion Alert Aggregation Based On Spatial And Temporal Density, Zhang Jing, Hengjun Wang, Junquan Li, Bin Yu

Journal of System Simulation

Abstract: Distributed Intrusion Detection System has created the problem to investigate a mass of duplicate alerts and high false positive rate in practical applications. Based on DBSCAN, density based spatial and temporal clustering of applications with noise (DBS&TCAN) algorithm was proposed by introducing temporal density. The approach aggregated partial alerts based on spatial density, and merges partial aggregation on the basis of temporal density. The effectiveness of the algorithm was demonstrated by the intrusion detection evaluation dataset. The comparative experiments and analysis show that the algorithm is effective in alert aggregation and gives better results in terms of real time …

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Research On Ontology-Meta Modeling Method For Equipments Sos (System Of System) Combat Simulation, Zhang Shen, Haohua Xu, Jingye Wang Jun 2020

Research On Ontology-Meta Modeling Method For Equipments Sos (System Of System) Combat Simulation, Zhang Shen, Haohua Xu, Jingye Wang

Journal of System Simulation

Abstract: Aiming at the strict standard and difficulties of equipments SOS combat simulation modeling, an ontology-meta modeling method was put forward. Based on the analysis of equipments SOS combat, the basic notional units were abstracted: function unit, combat organize, combat maneuver, combat event, and combat environment, and the units mapping into UOPEE (unit, organization, proceeding, event and environment) which was a maturity and combined models collect, then constituted the descriptive UOPEE architecture with the UML method, obtaining the cyber-model architecture based on component designing and realizing method. This method makes the equipments SOS combat model easy to mapping and integration …

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Fast Fusion Method For Multi-Focus Image Based On Hierarchical Model, Lisheng Wei, Pinggai Zhang Jun 2020

Fast Fusion Method For Multi-Focus Image Based On Hierarchical Model, Lisheng Wei, Pinggai Zhang

Journal of System Simulation

Abstract: The issue of hierarchical model for multi-focus image fusion was proposed to improve the visual effect and real-time performance. According to the ambiguous zones of source image, the appropriate grid value was selected and the fusion model was proposed. By using fuzzy logic method and threshold segmentation, the gray variance values of the corresponding block were calculated and the hierarchical classification of sub-block was given to achieve the best fusion zones. Based on these, the weighted mean method was proposed to smooth the discontinuity of different block marginal area. These guaranteed the real-time performance of image fusion. The simulation …

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Control Strategy Of Bionic Eyes Movement In Gaze Shifts, Xiaohui Wang, Ma Xin, Bin Qin, Yibin Li Jun 2020

Control Strategy Of Bionic Eyes Movement In Gaze Shifts, Xiaohui Wang, Ma Xin, Bin Qin, Yibin Li

Journal of System Simulation

Abstract: For the gaze shifts with asymmetrical depth in the horizontal plane of bionic eyes, a piecewise control strategy of eye-head coordinative motion was proposed according to the amplitude of gaze shifts, and the motion model of bionic eyes was developed. When the amplitude of gaze shifts is smaller than the head movement threshold, the eyes move only by saccade-vergence. When the amplitude is larger than the head movement threshold and smaller than the saturation threshold of eye movement with head at rest, gaze shifts are accomplished with eye-head coordinative movements. When the amplitude is larger than the saturation threshold, …

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Research Of Remote Sensing Image Classification Technology Based On Multi-Feature Combining And Bow Model, Li Ke, You Xiong, Du Lin Jun 2020

Research Of Remote Sensing Image Classification Technology Based On Multi-Feature Combining And Bow Model, Li Ke, You Xiong, Du Lin

Journal of System Simulation

Abstract: A new algorithm of image classification of multi feature combination and BoW model was proposed. SIFT, GIST, Census and Gabor color, and many other types of features were extracted from the images, and then through the experimental analysis to determine the best feature combination. According to the general K-means algorithm which did not consider the weight of each features, different feature component was put forward by using automatic weighted k-means algorithm, respectively SIFT, GIST, Gabor feature construct weights based on image features of vocabulary, using the soft coding algorithm for image coding, and using the SVM algorithm …

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Research On Visual Display System Of Helicopter Flight Simulator, Zhangfa Liu, Junjie Zhang Jun 2020

Research On Visual Display System Of Helicopter Flight Simulator, Zhangfa Liu, Junjie Zhang

Journal of System Simulation

Abstract: In order to improve the effect of visual display system in helicopter simulator system, and to enhanc the installation and maintenance of equipment, the method is based on x-type side-cabin helicopter, studying from optical design, dome design, projection support and shelter design, geometry correction and edge blending design. Research was discussed from a theoretical analysis of optical design method, taking fully into account the practicality and versatility of the structure of the dome design, integrated projectors support and shade structures, as well as the unique geometric correction method of geometric reference system. This method was validated by actual project …

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Design And Implementation Of Secure Usb Connection, Songyin Zhao, Bin Yu Jun 2020

Design And Implementation Of Secure Usb Connection, Songyin Zhao, Bin Yu

Journal of System Simulation

Abstract: Aiming at the deficiency of present secure solutions countering USB-based Hardware Trojan Horse, BadUSB, bus wiretapping and other new attack technologies, a secure connection scheme applying to any USB device was proposed. In scheme, mutual authentication and key exchange were implemented by extending the standard device request in the hub driver and USB device framework driver to prevent the creation of malicious USB connection. Meanwhile, all the data transferred of the created USB connection would be filter encrypted by USB bus driver and USB device framework driver to rebel the monitor of bus. The experiment results show that the …

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Research And Implementation Of Simulation For Aircraft Crossing The Low-Level Wind Shear Area, Zhigang Su, Chen Qi, Jingtang Hao Jun 2020

Research And Implementation Of Simulation For Aircraft Crossing The Low-Level Wind Shear Area, Zhigang Su, Chen Qi, Jingtang Hao

Journal of System Simulation

Abstract: Low-level wind shear seriously affects the safety of approach and departure of flights, the flight simulation system is utilized for analyzing low-level wind shear influences on aircraft take-off and landing, which is of great significance for seeking the safety circumvention strategy of aircraft crossing the core of the storm. With software, Fluent, the system simulated the regional wind field of low-level wind shear, and utilized the open source flight simulator, FlightGear, as the aircraft simulation platform. The system sent the wind speed data as the input of system via UDP(User Datagram Protocol) interface and the influences on aircraft flight …

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Numerical Simulation Of Cavitation And Failure Analysis In Hydraulic Loader, Mo Li, Yang Qi, Yumei Wang Jun 2020

Numerical Simulation Of Cavitation And Failure Analysis In Hydraulic Loader, Mo Li, Yang Qi, Yumei Wang

Journal of System Simulation

Abstract: Using software CFX with SST κ-ω model and Rayleigh-Plesset cavitation model, the numerical simulation of 3-D steady flow with water liquid and water vapour two phases in whole flow passage of hydraulic loader was conducted. The influences of different parameters (inlet flow rate, rotational speed and blade angle) on cavitation of hydraulic loader were studied. The results show that, under small flow rate, large blade angle (≥60°) and low speed (≤3 000 r/min), cavitation is light. At different working conditions, where cavitation appears in radial direction of position is the same. The cavitation mainly distributes where the r/R …

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Research On Identification Of Induction Motor Parameters Ased On Nameplate Data And Pso, Xingwu Wang, Bingshu Wang, Zhaoyan Zhang, Zhibin Liu Jun 2020

Research On Identification Of Induction Motor Parameters Ased On Nameplate Data And Pso, Xingwu Wang, Bingshu Wang, Zhaoyan Zhang, Zhibin Liu

Journal of System Simulation

Abstract: A new method was proposed based on motor nameplate and particle swarm optimization (PSO) for identification of motor equivalent circuit parameters. The method effectively solved to present problems of motor equivalent circuit parameters identification method. An accurate motor equivalent circuit was built by introducing an equivalent stray-loss resistance, mechanical loss, and slip loss of ring brushes for wound motor. An identification optimization model of equivalent circuit was established based on motor nameplate parameters and motor equivalent circuit’s calculating parameters. Solving optimization model with PSO was achieved a higher probability optimization goals. The motor electrical parameters were calculatd at …

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Development Trend Of Next Generation 3d Graphics Engines, Zhao Wei, Mao Ping, Fanyu Shen Jun 2020

Development Trend Of Next Generation 3d Graphics Engines, Zhao Wei, Mao Ping, Fanyu Shen

Journal of System Simulation

Abstract: The development, relationship and differences between game engine and virtual reality engine were introduced, a joint name of 3D graphics engine was proposed. The bottlenecks and shortages of scene management, geometry model creating, physics simulation, lighting, shading, etc. were analyzed by synthetically considering the advancements in computer hardware, softwares and simulation theories, etc.. The development demands and trends were researched, the Concept of adaptive multi-thread shading technology, advanced real-time dynamic deformation technology, integrated collision detection technology, independent of the collision process technology were proposed for the first time, and a brief features description of these concepts were give, it …

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Parametric Approachfor Automatic Generation Of Finite Element Modelfor Dental System, Wei Yi, Dengming Zhu Jun 2020

Parametric Approachfor Automatic Generation Of Finite Element Modelfor Dental System, Wei Yi, Dengming Zhu

Journal of System Simulation

Abstract: Aiming at overcoming the disadvantages of currentmodeling methods for dental system, such as poor efficiency and lack of personality, a method for automatic generation of finite element model for personalized dental systemis proposed. On the basis ofthe original 3Ddental model, a3Dmodel of pericementum and phatnomaiscreatedby technology of solid modeling.According tothe configuration parameters of dentition and finite elements, a finite element model of the personalized dental system is generated. Based on Ansys parametric design language, anautomatic finite element modeling system of dental system is implemented. By this modeling system, experiments are performed based on the real data of dental system …

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Parameter Identification Method Based On Lagrangemultiplier And Measuring Residual Error, He Zhi, Zhicheng Nie, Yining Qin, Youping Fan Jun 2020

Parameter Identification Method Based On Lagrangemultiplier And Measuring Residual Error, He Zhi, Zhicheng Nie, Yining Qin, Youping Fan

Journal of System Simulation

Abstract: To satisfy the security and stability control, transient and steady state analysis of power system, it is necessary to ensure the accuracy of the estimated parameters. A method of parameter identification in power system based on Lagrange multiplier and measurement method of residualis proposed through analysis of measurement residuals. A two-step approach for parameter identification is introduced. Based on Lagrange multiplier method, using thestandardized Lagrange multiplier corresponding to the parameter error the parameters with errors can be judged by the size relative to the threshold and can bedetected and identified automatically. The residual vector of measurement redundancy is …

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Doppler Ultrasound Blood Flow Signal Simulation Of Aneurysm Based On Analytical Velocity Distribution, Gao Lian, Yufeng Zhang, Jine Yan, Zhiyao Li, Kexin Zhang, Xiong Min, Suya Han Jun 2020

Doppler Ultrasound Blood Flow Signal Simulation Of Aneurysm Based On Analytical Velocity Distribution, Gao Lian, Yufeng Zhang, Jine Yan, Zhiyao Li, Kexin Zhang, Xiong Min, Suya Han

Journal of System Simulation

Abstract: For simulating the Doppler ultrasound blood flow signals in the vessels with aneurysms at different stages of development, this paper presents a simulation model in which the Doppler ultrasound blood flow signals are obtained by employing cosine-superposed constituents which are modulated by a power spectral density (PSD) estimated from velocity profile calculated by analytically solving the Navier-Stokes equations according to the axis-centerline velocity at the upstream faraway segment of the aneurysms. In the experiments, the Doppler ultrasound blood flow signals in the normal vessels and vessels with aneurysms having different dilations are generated, respectively. The simulated Doppler ultrasound blood …

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Sub-Zero Cold Start Simulation Of Hybrid Fuel Cell Vehicle Drivetrain, Xinfeng Zhang, Minghui Luo, Chuanqi Yao, Dai Wei, Guofeng Chang Jun 2020

Sub-Zero Cold Start Simulation Of Hybrid Fuel Cell Vehicle Drivetrain, Xinfeng Zhang, Minghui Luo, Chuanqi Yao, Dai Wei, Guofeng Chang

Journal of System Simulation

Abstract: Sub-zero cold start is a major obstacle for PEM fuel cell vehicle's commercialization. This paper aims to study the sub-zero cold starting process of hybrid fuel cell vehicle. A thermo-electro-mechanical coupling model was built based on the electro-chemical and thermal dynamic performance of battery and fuel cell, as well as the mechanical dynamic performance of fuel cell's auxiliary system. A computational model was also set up based on MATLAB/simulink. Through simulations under different heat powers, the energy consumption and battery state of charge are analyzed, which help to optimize power train's configuration and control strategy.

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Chemical Reaction Optimization Algorithmfor Solving Quaycrane Scheduling Problems Of Container Terminal, Wang Xu, Shixin Liu, Ruiyou Zhang, Wang Jia Jun 2020

Chemical Reaction Optimization Algorithmfor Solving Quaycrane Scheduling Problems Of Container Terminal, Wang Xu, Shixin Liu, Ruiyou Zhang, Wang Jia

Journal of System Simulation

Abstract: This paper researches on quay crane scheduling for unloading operations in container terminal. Considering quay crane work within its time window, an unloading scheduling simulation model is established.According to the characteristics of the unloading scheduling simulation model,a DoubleList Molecular Structure-based Chemical Reaction Optimization(DLMCRO) algorithm is developed. There are two parts in coding: one is the priority relation of the task, and the other is the task-to-quay-node mapping.Discrete Event Dynamic Simulation(DEDS)is used to simulate the decoding process. Four elementary chemical reaction operations against the problem are designed. The simulation experiment is …

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Application Of Virtual Reality In Plc Gas-Fired Boiler Training System, Dahu Wang, Chen Xia, Huizheng Gao Jun 2020

Application Of Virtual Reality In Plc Gas-Fired Boiler Training System, Dahu Wang, Chen Xia, Huizheng Gao

Journal of System Simulation

Abstract: In view of the problem that traditional training methods for PLC debugging can not show the running states of controlled objects in full angles, a PLC virtual simulation training platform is designed based on virtual reality technology. The system is composed of upper computer and lower computer connected by RS232 bus. The upper computer uses 3ds Max to model and render facilities, and uses Unity3D to construct the complete virtual scene. The lower computer designs PLC control board to control the virtual gas-fired boiler, which transmits data between PLC and virtual scene through the communication module. The test result …

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Modeling And Simulation Of Heat Transfer Process Of Coke Oven Twin Flue, Kun Shen, Wang Ling, Tianyu Ma Jun 2020

Modeling And Simulation Of Heat Transfer Process Of Coke Oven Twin Flue, Kun Shen, Wang Ling, Tianyu Ma

Journal of System Simulation

Abstract: To study the heat transfer process of flues in 5.5m coke oven with waste gas circulation, the heat transfer mechanism of flue in coke oven's combustion chamber and gas exchange process of twin flue were analyzed; the simulation models of upflow flue and downflow flue were built respectively. According to tables of coke pushing and coal charging sequence in coking production, combining with gas exchange process in twin flue, the simulation analysis on surface temperature characteristics of twin flue walls in real coking production process were achieved by the designed simulation model. The simulation results show that …

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Credibility Evaluation Of Hardware-In-The-Loop Simulation Test For Guided Weapons, Jianbin Dou, Xiaobing Wang, Bin Shan, Zhang Yan Jun 2020

Credibility Evaluation Of Hardware-In-The-Loop Simulation Test For Guided Weapons, Jianbin Dou, Xiaobing Wang, Bin Shan, Zhang Yan

Journal of System Simulation

Abstract: The thesis explained the concept of credibility evaluation of hardware-in-the-loop simulation. The models and the processes were introduced in three parts: credibility evaluation of simulation system, monitoring of simulation test process, and credibility evaluation of simulation results. The credibility evaluation model of hardware-in-the-loop simulation system was built based on TOPSIS and the credibility evaluation model of simulation results was built based on simulation and firing practace. This way could answer the credibility of hardware-in-the-loop simulation, and provide strong support for hardware-in-the-loop simulation in guided weapons test and evaluation.

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Application Of Distributed Clustering In Anomaly Detection Of Farm Environment Data, Deng Li, Honglin Pang, Ling Wang, Minrui Fei Jun 2020

Application Of Distributed Clustering In Anomaly Detection Of Farm Environment Data, Deng Li, Honglin Pang, Ling Wang, Minrui Fei

Journal of System Simulation

Abstract: The massive farm environment data stored in the distributed system should be dealt with so as to provide abnormal environment reference and make preventive strategies for crop yield. Considering the characteristics of the farm environment data, the Dirichlet Process Mixture Model (DPMM) clustering is implemented with the farm environment data on Hadoop and the anomaly detection method of the farm environment is proposed based on clustering analysis. Under the framework of MapReduce, Map stage implements the distribution of the sample points to the models; Reduce stage completes the update of models and the number of clusters. The performance has …

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Application Of Kpca-Esn Method In Wi-Fi Based Indoor Positioning, Li Jun, Chen Ying Jun 2020

Application Of Kpca-Esn Method In Wi-Fi Based Indoor Positioning, Li Jun, Chen Ying

Journal of System Simulation

Abstract: Aiming at the problem that the positioning accuracy is affected by the dynamic indoor environment and time-varying received signal strength (RSS) values, a Wi-Fi based indoor positioning method using kernel principal component Analysis (KPCA) and echo state networks (ESN) is proposed. The KPCA method is used to preprocess the RSS fingerprints effectively and extract the nonlinear principal components of the inputs of the model. On the basis of KPCA, the extracted principal components are taken as the inputs to the ESN network, the nonlinear mapping between corresponding positioning features and physical locations is then established by the ESN. …

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Truck Scheduling For Delivering Containers Among Multiple Container Terminals Based On Truck Appointment System, Houming Fan, Zhenfeng Guo, Yang Yu Jun 2020

Truck Scheduling For Delivering Containers Among Multiple Container Terminals Based On Truck Appointment System, Houming Fan, Zhenfeng Guo, Yang Yu

Journal of System Simulation

Abstract: Based on thetruck appointment system which is used for coping with the serious congestion in the port caused by trucks irregular arrival at peak time, the truck scheduling problem for delivering containers from outside yard to multiple container terminals is studied.Under the premise of meeting the requirements of container arrivals for export vessels, a truck scheduling model is built to reduce the outside yard's operation cost with the objective of minimizing the quantity of the dispatched trucks. A modified ant colony algorithm is designed to solve the model, and the truck scheduling plan for delivering containers to different terminals …

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Compressed Cooperative Eigenvalue Spectrum Sensing For Radio Signal, Jingjing Yang, Feng Yun, Zhigang Chen, Tang Hao, Huang Ming Jun 2020

Compressed Cooperative Eigenvalue Spectrum Sensing For Radio Signal, Jingjing Yang, Feng Yun, Zhigang Chen, Tang Hao, Huang Ming

Journal of System Simulation

Abstract: Detecting the abnormal radio emission through radio monitoring is an important task of radio management. A regional cooperative compressed spectrum sensing model is proposed. A multi-node sensing system based on software defined radio platform is built, and the effectiveness of cooperative spectrum sensing is demonstrated. Results show that a high detection probability could be achieved at a suitable decision threshold based on the test statistics extracted from the eigenvalue of the received signal; what's more, compressed spectrum sensing employed to the detection system greatly reduced the size of the data transmitted from the sensing nodes to the fusing node. …

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