Journals >Electronics Optics & Control
Contents
2022
Volume: 29 Issue 6
23 Article(s)
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Infrared and Visible Image Registration Based on NSCT Contour and Main Direction Consistency
DUAN Linfeng, HOU Xinguo, and HU Zhiyuan
Aiming at the difficulty of feature point matching in infrared and visible image registrationan infrared and visible image registration method based on NSCT contour extraction and main direction consistency matching is proposed.FirstlyNSCT transform is used to extract the contour curves of infrared and visible imagesAiming at the difficulty of feature point matching in infrared and visible image registrationan infrared and visible image registration method based on NSCT contour extraction and main direction consistency matching is proposed.FirstlyNSCT transform is used to extract the contour curves of infrared and visible imagesand the corners on the contour curves are extracted as feature points by using CSS corner detection algorithm.Thenthe middle line of the contour curve is used as the main direction of the feature pointsand the SIFT descriptor of the main direction of the feature points on the infrared and visible images is calculated as the feature description of the feature points.Finallythe mismatched points are removed by using the method of main direction consistency matching of the feature pointsand the affine transformation parameters are calculated.Experimental results show thatthe average Root Mean Square Error (RMSE) of the proposed method is 2.36and the average Correct Matching Ratio (CMR) reaches 91.6%which ensures the accuracy of extracting and matching the same feature points on two kinds of images and improves the accuracy of image registration..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 1 (2022)
Application of Modified Differential Evolution Algorithm in 3D Path Planning
ZHANG Zonghao, XU Bin, and HU Zheng
The basic Differential Evolution (DE) algorithm has the problems of insufficient search accuracy and convergence ahead of timewhich results in unsatisfying effects of 3D path planning.Thereforea modified differential evolution algorithm based on Sine Cosine Algorithm (SCA) is designed.Firstlythe mutation strategy isThe basic Differential Evolution (DE) algorithm has the problems of insufficient search accuracy and convergence ahead of timewhich results in unsatisfying effects of 3D path planning.Thereforea modified differential evolution algorithm based on Sine Cosine Algorithm (SCA) is designed.Firstlythe mutation strategy is improved based on the search mechanism of SCA as well as the populations center of gravityand the crossover strategy is improved by integrating the disturbance strategyso as to improve the search ability and convergence performance of the algorithm.Thena new scaling factor is designed based on the Logistic functionso as to resolve the contradiction between global and local search.Through the experiment of function optimizationit is verified that the modified algorithm has good search accuracy and convergence rate.Finallythe modified algorithm is applied to 3D path planning of UAV.Owing to the advantages of the modified algorithm in searchingthe surrounding spatial environment can be better distinguished in each generation of searchso that the path selection is more reasonable.The simulation results show thatcompared with that of the basic differential evolution algorithmthe 3D path of UAV generated by the modified algorithm is shorter..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 6 (2022)
Lightweight Small Target Detection in Aerial Remote Sensing Image
XUE Yali, SUN Yu, and MA Hanrong
The single-stage target detection algorithm has attracted the attention of many researchers and industries due to its simple structure and high-efficiency model.Based on the existing YOLO algorithmregarding the difficulties of small size and tight arrangement of targets in remote sensing imagesa lightweight target deThe single-stage target detection algorithm has attracted the attention of many researchers and industries due to its simple structure and high-efficiency model.Based on the existing YOLO algorithmregarding the difficulties of small size and tight arrangement of targets in remote sensing imagesa lightweight target detection method is proposed to improve the accuracy of small target detection in complex backgrounds.In this methodweighted fusion feature network is introduced to provide each layer of feature map with a weight coefficient that can be continuously learned in trainingso as to strengthen the feature fusion of deep and shallow layers.By introducing CIoU loss and model improvementthe convergence speed of the network is accelerated to meet the real-time requirements.Comparative experiments are carried out on the small target dataset based on DOTA remote sensing images.The experimental results show that the method has better detection accuracy and detection speed..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 11 (2022)
A New Method of Two-Dimensional DOA Estimation for Coprime MIMO Radar
ZHANG Fei, ZHANG Zijing, and YANG Lyuxi
Aiming at the problem that traditional Direction of Arrival (DOA) estimation methods cannot process multiple sources with high accuracy while improving Degree of Freedom (DOF)a new two-dimensional DOA estimation method for MIMO radar based on the coprime array (SM-MIMO-CA) is proposed.This method is based on a new MIMAiming at the problem that traditional Direction of Arrival (DOA) estimation methods cannot process multiple sources with high accuracy while improving Degree of Freedom (DOF)a new two-dimensional DOA estimation method for MIMO radar based on the coprime array (SM-MIMO-CA) is proposed.This method is based on a new MIMO array-based coprime array model (MIMO-CA)which improves the accuracy of multi-source estimation when the number of elements is finiteand a larger array aperture is obtained with a smaller number of elementswhich improves the accuracy of two-dimensional DOA estimation.Finallythe effectiveness and reliability of the SM-MIMO-CA method in improving DOF and improving DOA accuracy are verified through experiments..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 16 (2022)
Aperiodically Intermittent Control of Stochastic Systems Based on Discrete Observations
WANG Haiyang, and SONG Gongfei
Aiming at the stability problem of stochastic nonlinear systemsan aperiodically intermittent controller based on discrete observations is designed to ensure the mean square exponential stability of the closed-loop stochastic system.Different from the existing intermittent controllersthis intermittent controller is apAiming at the stability problem of stochastic nonlinear systemsan aperiodically intermittent controller based on discrete observations is designed to ensure the mean square exponential stability of the closed-loop stochastic system.Different from the existing intermittent controllersthis intermittent controller is aperiodic.Moreoverthis controller is a discrete-time state observation based feedback controllerrather than a continuous-time feedback controller.Thenthe criterion of exponential stability is givenand the intermittent controller is designed according to the criterion of stability.The mean square exponential stability of the stochastic nonlinear system is proved by using Lyapunov theoryand the correctness of the criterion is verified.Finallythe validity of the analysis results is proved by numerical examples..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 21 (2022)
UAV Path Planning Based on Refracted Sparrow Search Algorithm
OUYANG Chengtian, ZHU Donglin, WANG Fengqi, and QIU Yaxian
Aiming at the instability and low convergence precision of evolutionary algorithms in UAV path planninga Refracted Sparrow Search Algorithm (RSSA) is proposed.FirstlyRSSA uses Refracted Opposite-Based Learning (ROBL) to expand the search range and develop a more concealed spaceso as to enhance the global search abilAiming at the instability and low convergence precision of evolutionary algorithms in UAV path planninga Refracted Sparrow Search Algorithm (RSSA) is proposed.FirstlyRSSA uses Refracted Opposite-Based Learning (ROBL) to expand the search range and develop a more concealed spaceso as to enhance the global search ability of the algorithm.Thenthe crazy operator is used to make the search of the algorithm more detailedand the convergence accuracy is improved.Finallythe algorithm of Simulated Annealing (SA)is integrated to refine each solutionso as to find a higher-quality solution.RSSA is compared with other five algorithms in six standard test functionsand the test results show that RSSA is reasonable and effectiveand the Wilcoxon rank test proves that RSSA has strong optimization ability.It is applied to the UAV path planning in complex terrainand the simulation results show that RSSA has the smallest variance and the lowest cost compared with other algorithms..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 25 (2022)
An Evaluation Method of Midcourse Recognition Plan in Anti-missile Early Warning Based on Matter-Element Theory and Evidence Theory
ZHANG Chen, DING Jianjiang, XU Ying, and QIU Wangsheng
In order to make the midcourse recognition plan of ballistic missile more close to the actual combat sceneit is necessary to evaluate and analyze the plan.According to the actual combat scene and the existing detection capability levelan evaluation index system of the midcourse recognition plan for anti-missile earlyIn order to make the midcourse recognition plan of ballistic missile more close to the actual combat sceneit is necessary to evaluate and analyze the plan.According to the actual combat scene and the existing detection capability levelan evaluation index system of the midcourse recognition plan for anti-missile early-warning is established,and the meaning of different indexes is explained.After thatexperts are invited to score the indexes of the plan to be evaluatedand the correlation degree between the indexes of the plan to be evaluated is calculated by using the method of matter-element theory.On this basisthe matter-element theory and the evidence theory are organically combined by using the normalized processing methodand the level to which the plan belongs is determined by using the formula of synthesis rules in the evidence theory.Experiments have proved that this method can effectively reduce the difficulty of obtaining mass functions in the evidence theory and their high subjectivitywhich makes the synthetic result more objective and accurateand the evaluation conclusion more convincing..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 32 (2022)
Remote Sensing Aircraft Detection Algorithm Based on Structural Pruning
WANG Chenglong, ZHAO Qian, ZHAO Yan, and GUO Tong
Regarding the problem that lightweight algorithm in remote sensing aircraft target detection is difficult to balance accuracy and real-time performancea model compression method based on YOLOv4 structured pruning is presented.In order to make the anchor frame parameters more suitable for remote sensing datasets and taRegarding the problem that lightweight algorithm in remote sensing aircraft target detection is difficult to balance accuracy and real-time performancea model compression method based on YOLOv4 structured pruning is presented.In order to make the anchor frame parameters more suitable for remote sensing datasets and take advantage of network multi-scale detectionK-means++ algorithm is used to cluster the datasets and scale adaptive adjustment is designed to restrain the redundancy of the anchor frame caused by too many small targets and close target sizes.In additionin order to reduce the parameters of the modelthe scaling factor γ in the normalization layer is used for L1 sparse regularizationthe filter and convolution kernel weights are re-evaluatedchannels with less feature information are iteratively prunedand then the pruning model is fine-tuned to recover accuracy.The experimental results show that after pruningthe model parameters are compressed by 93.1%and the detection speed is 2.46 times faster than that of the original modelwhich can effectively improve the detection accuracy and real-time performance..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 37 (2022)
A Radar Detection and Tracking Algorithm for Multiple Small and Weak Targets
WANG Kezhi, HU Jiemin, and FU Lianqing
The detection and tracking of multiple small and weak targets is an important technical difficulty in radar detection.A new idea is proposed for the detection of small and weak targets in complex background.The detection performance is optimized from three aspects.Firstlytarget tracking in complex background is realizThe detection and tracking of multiple small and weak targets is an important technical difficulty in radar detection.A new idea is proposed for the detection of small and weak targets in complex background.The detection performance is optimized from three aspects.Firstlytarget tracking in complex background is realized by improving the probabilistic data association algorithm.Secondlythe nonuniform clutter suppression under the condition of the squint array is realized by adaptive processing.Finallythe target tracking range is expanded and the target form is improved by analyzing the targets hidden information.Experiments show that this algorithm can be well applied to the tracking of targets with the feature of gate coincidencewhich can not only guarantee the accuracy of trackingbut also greatly improve the correlation speedand can be well used in the detection of small and weak targets in complex background..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 42 (2022)
A Computational Model for Electro-optical Countermeasure Ammunition Consumption
HAN Daowen, LI Shuanggang, SONG Zhenzhi, and ZHU Zhenglong
Firstlythe factors that affecting the ammunition consumption of electro-optical countermeasure are analyzed.Secondlythe tasks undertaken by electro-optical countermeasure ammunition is calculated according to the factorsthe calculation model of electro-optical countermeasure ammunition consumption is established by Firstlythe factors that affecting the ammunition consumption of electro-optical countermeasure are analyzed.Secondlythe tasks undertaken by electro-optical countermeasure ammunition is calculated according to the factorsthe calculation model of electro-optical countermeasure ammunition consumption is established by combining the single task consumption of ammunition.Finallythe calculation method of the model is introduced with a concrete example.The calculation results show that the calculation model of ammunition consumption for electro-optical countermeasures presented is clearly described and easy to calculatewhich can provide a reference for assessing ammunition support in electro-optical countermeasures operationand has a strong practical significance..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 47 (2022)
Trajectory Tracking Control of Quadrotor UAV Based on State Observer
XIONG Zhihao, DENG Tao, ZHENG Yuwei, ZHOU Xin, and WU Yuze
Aiming at the nonlinearunderactuatedstrong coupling and multivariable control problems in trajectory tracking control of quadrotor UAVa cascade global fast Terminal Sliding Mode Control (TSMC) strategy based on Extended State Observer (ESO) is proposed.The control strategy enables the system to perceive promptly andAiming at the nonlinearunderactuatedstrong coupling and multivariable control problems in trajectory tracking control of quadrotor UAVa cascade global fast Terminal Sliding Mode Control (TSMC) strategy based on Extended State Observer (ESO) is proposed.The control strategy enables the system to perceive promptly and eliminate internal and external disturbances in real timeand guarantees that the system will converge to the state of equilibrium in a limited time.In additionthe stability of the control system is proved by the Lyapunov theorem.The simulation results demonstrate that the proposed control algorithm can improve the robustness of the system and ensure the trajectory tracking accuracy of the quadrotor UAV under the conditions that the dynamic characteristics of the motor and external disturbances are taken into account,and the assumption of small disturbance of attitude angles is avoided..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 50 (2022)
New Trend of USAs Fire Control Research from New Topics in NFCS
GAO Jinsong, LI Pengjiao, ZHAO Zhou, and YAN Congwu
National Fire Control Symposium (NFCS) is a series of professional conferences focusing on USAs fire control technology.The emerging topics in sessions and posts of NFCS in recent years are reviewed and classified.According to Call for Abstracts (CFA) of sessions in NFCSthe connotations of these topics are introducedNational Fire Control Symposium (NFCS) is a series of professional conferences focusing on USAs fire control technology.The emerging topics in sessions and posts of NFCS in recent years are reviewed and classified.According to Call for Abstracts (CFA) of sessions in NFCSthe connotations of these topics are introduced one by one and then analyzed.NFCS is categorizingsummarizing and condensing these topics all the time according to the actual situation of the USAand has extended a few more noteworthy directions of fire control research in recent years.For examplerapid transition of new technology to the warfighterthe capabilities of fire control platformsand the application of autonomy in fire control systemsand so on.In additionthe USAs fire control research has displayed the characteristics of studying one topic from multiple perspectives..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 57 (2022)
Progress on Fission Behavior for Multi-agent Flocking System
LI Chengfeng, ZHANG Yangwei, SHAO Junqian, and GAO Liang
Flocking system is one of the hotspots in the research of multi-agent systemand it is of great theoretical and practical significance to study its fission behavior.This paper summarizes the composition of flocking systeminformation interaction mechanism and stability analysis of fission.Firstlythe composition of floFlocking system is one of the hotspots in the research of multi-agent systemand it is of great theoretical and practical significance to study its fission behavior.This paper summarizes the composition of flocking systeminformation interaction mechanism and stability analysis of fission.Firstlythe composition of flocking system is classified and introduced from the perspective of heterogeneous and isomorphic agentthe effects and limitations of fission methods based on isomorphic and heterogeneous flocking systems are discussed.Secondlythe information interaction of fixed neighbor distance and selective information interaction are summarized and analyzedand the shortcomings and application occasions of each information interaction mechanism are pointed out.Finallythe existing theoretical analysis methods of fission stability are introduced and analyzedthe future research direction of fission behavior is indicated..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 62 (2022)
Random Error of MEMS Gyroscope:Analysis and Modeling
ZHANG Meng, WANG Hong, and LYU Dong
The random error of MEMS gyroscope is a key factor affecting the accuracy of inertial navigationwhich restricts the development of inertial navigation.In order to improve the performance of MEMS gyroscope and improve the accuracy of Allan variance identificationthe random drift error of the gyroscope is analyzed by uThe random error of MEMS gyroscope is a key factor affecting the accuracy of inertial navigationwhich restricts the development of inertial navigation.In order to improve the performance of MEMS gyroscope and improve the accuracy of Allan variance identificationthe random drift error of the gyroscope is analyzed by using the improved Allan variance method.On this basisthe random error model of MEMS gyroscope is established by using the time series analysis method.The results show that the method is simple in calculationflexible in modelingand can significantly improve the accuracy of Allan variance calculation and data utilization rate.The time series model is stable and has strong applicability..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 68 (2022)
An Image Registration Algorithm Based on RANSAC and Mutual Information and Its Hardware Implementation
MAO Xin, YAN Libing, SONG Jianbo, YANG Yifan, LI Yan, and YAN Chaoqi
In the process of image fusiontwo different-source video inputs often cause parallax between the two images due to the difference in optical system and spatial positionwhich in turn causes the problem of blurred edges and artifacts during image fusion.Thereforeimage registration is required before image fusion.RegarIn the process of image fusiontwo different-source video inputs often cause parallax between the two images due to the difference in optical system and spatial positionwhich in turn causes the problem of blurred edges and artifacts during image fusion.Thereforeimage registration is required before image fusion.Regarding the problem that the current heterogeneous image registration has poor real-time performance which makes it impossible to be applied in practical engineeringan image registration algorithm based on RANSAC and mutual information is proposedwhich divides the registration operations of different dimensions into the initial registration and real-time registrationin the meantime the POWELL optimization algorithm is introduced to speed up the searchwhich maintains a high real-time performance without reducing the registration accuracy.Finallythe proposed algorithm is transplanted to embedded hardware and accelerated based on Zynqand an embedded image registration system with high accuracy and real-time performance is realized..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 72 (2022)
Research on Multi-target Bombing Technology of Two Small-Diameter Bombs in Near and Long Range
ZOU Jie, ZHANG Hua, GUO Limin, LIU Yanming, and FAN Xinlei
In this paperdual-weapon multi-target bombing tactics is proposed in response to the operation mission requirements of bombing airports for gathering multiple targets.Firstlythe attack area of two small-diameter bombs with different ranges is calculated and simulated.The simulation results show that small-diameter boIn this paperdual-weapon multi-target bombing tactics is proposed in response to the operation mission requirements of bombing airports for gathering multiple targets.Firstlythe attack area of two small-diameter bombs with different ranges is calculated and simulated.The simulation results show that small-diameter bombs can maximize the combat effectiveness when applying at high altitude and high speed.Thenfrom the complete process of dual-weapon multi-target bombing tacticsmulti-target pre-grouping and re-groupingmulti-target attack conditions and multi-target attack direction optimizationthe theoretical method of dual-weapon multi-target bombing tactics decision-making is deeply studiedwhich lays a solid theoretical foundation for the engineering application of dual-weapon multi-target bombing tactics decision-making..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 77 (2022)
Design of Integrated Simulation System for Air-to-Air Missile Ballistics and Launch Envelopes
MENG Bo
Ballistics simulation and launch envelopes simulation are key means of designing and verifying Air-to-Air Missile (AAM) performance.The two independent means of simulation are designed in architecture matched in interface and integrated in system.An integrated simulation system for AAM ballistics and launch envelopes Ballistics simulation and launch envelopes simulation are key means of designing and verifying Air-to-Air Missile (AAM) performance.The two independent means of simulation are designed in architecture matched in interface and integrated in system.An integrated simulation system for AAM ballistics and launch envelopes is designed and validated.Experimental results show that the integrated simulation system can comprehensively complete ballistics and launch envelopes simulationwhich significantly improves the efficiency and quality for the designsimulationanalysis and assessment of AAM performance..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 81 (2022)
Friend or Foe Identification of Air Targets Based on Fuzzy Inference and Evidence Theory
CHEN Zhiyuan, SHEN Di, YU Fuping, SONG Yafei, and LIU Shijun
The study on friend or foe identification of air targets is seldom combined with the management of air battlefield.To solve the problema method for friend or foe identification of air targets based on fuzzy inference and evidence theory is proposed.Firstlythe correlation between the identification of air targets and The study on friend or foe identification of air targets is seldom combined with the management of air battlefield.To solve the problema method for friend or foe identification of air targets based on fuzzy inference and evidence theory is proposed.Firstlythe correlation between the identification of air targets and airspace control of the battlefield is analyzedand the identification process and discrimination logic under the framework are introduced.Secondlythrough the design of an intuitionistic fuzzy inference systemthe corresponding inference rules and ambiguity-resolving algorithm are established to model the method.Thenthe evidence theory is used to modify and fuse the fuzzy inference results to achieve continuous recognition. Finallyan example is given to verify the validity and rationality of the proposed methodwhich can provide a reference for related research..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 85 (2022)
Separation Performance of Blind Source Separation Algorithms in Communication Reconnaissance
ZHAO Yupu, LYU Hong, LIU Youjun, and LYU Chaofeng
In communication reconnaissancemulti-channel Blind Source Separation (BSS) algorithm is commonly used to separate signalsbut sometimes the separation effect is not ideal.Through theoretical analysis and simulation verificationthe separation performance of common multi-channel BSS algorithms such as FastICAInformax In communication reconnaissancemulti-channel Blind Source Separation (BSS) algorithm is commonly used to separate signalsbut sometimes the separation effect is not ideal.Through theoretical analysis and simulation verificationthe separation performance of common multi-channel BSS algorithms such as FastICAInformax and EASI in communication signal reconnaissance is studied.The influence of Signal to Noise Ratio (SNR)Signal Intensity Ratio (SIR) and relative Direction of Arrival (DOA) on multi-channel BSS is analyzedwhich provides a reference for BSS application research and algorithm selection..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 93 (2022)
Formation Control of Second-Order Multi-agent Systems with Improved Connectivity Preservation
ZHOU Ruimin, XU Pengfei, SI Wenjie, ZHOU Zhiqing, and GENG Zexun
For the issue that the distance-based approaches of connectivity preservation are too conservative a leader-follower formation control approach is proposed for second-order multi-agent systems with improved connectivity preservation.Firstlyconsidering that not all followers can receive information from the leadera dFor the issue that the distance-based approaches of connectivity preservation are too conservative a leader-follower formation control approach is proposed for second-order multi-agent systems with improved connectivity preservation.Firstlyconsidering that not all followers can receive information from the leadera desired offset position based distributed formation control protocol is designed.Nextby utilizing the position and velocity of the agents simultaneouslya judgment method of connectivity trend is proposed.Furthermorean adaptive action function based on relative velocity and distance is designed.Compared with traditional connectivity preservation methods based on artificial potential fieldthe proposed method can accurately determine the trend of connectivity between the agentsand reduce the adverse effects on the formation.Finallythe sufficient conditions for the stability of the system are given by using graph theoryand the superiority of the proposed method is verified through numerical simulation and comparative experiment..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 97 (2022)
An Analysis of Effect of Outboard Active Bait on Performance of Anti-ship Missile Under Rainfall Attenuation
ZHANG Juntao, LI Shangsheng, XU Xiaoyu, and JI Ning
Aiming at the operational application of outboard active bait on rainy daysthe influence of rainfall attenuation on radar detection performance is analyzedand the maximum radar operating range model under rainfall attenuation is established to obtain the relationship between the maximum radar operating range and rainAiming at the operational application of outboard active bait on rainy daysthe influence of rainfall attenuation on radar detection performance is analyzedand the maximum radar operating range model under rainfall attenuation is established to obtain the relationship between the maximum radar operating range and rainfall rate.By analyzing the centroid jamming mechanism of outboard active bait and based on the factors influencing the jamming effect of outboard active bait in sunny weathera series of mathematical models under rain attenuation are establishedsuch as the equivalent Radar Cross-Section (RCS) model of outboard active bait and the missile tracking model.The shortest deployment distance of outboard active bait for effective jamming under different rainfall rate conditions is simulated and calculatedwhich provides a reference for the tactical application of outboard active bait..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 102 (2022)
A Sliding Mode Control Method for Aircraft Light Panel Auto-dimming System
LIU Hongde, ZOU Haoyan, ZHAO Liyi, and DONG Kerui
In this paperthe control method of light panel auto-dimming in cockpit is studiedand a sliding mode control method for auto-dimming system is proposedthe design of control systemmodeling of controlled object and construction of sliding mode controller are completed.By using Matlabthe control rate is simulatedcompIn this paperthe control method of light panel auto-dimming in cockpit is studiedand a sliding mode control method for auto-dimming system is proposedthe design of control systemmodeling of controlled object and construction of sliding mode controller are completed.By using Matlabthe control rate is simulatedcomparing the system step response as well as the tracking accuracy with different parametersand optimizing the controller parameters.The results show that the control system has a fast response rategood tracking accuracyand can adjust the power consumption of light panel according to the change of the illumination of ambient lightthus achieving the control objectives of stabilizing the character contrastreducing the power consumption of light paneland improving the crews work performance..
Electronics Optics & Control
- Publication Date: Jan. 01, 1900
- Vol. 29, Issue 6, 108 (2022)
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