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Value Iteration-Based Cooperative Adaptive Optimal Control for Multi-Player Differential Games With Incomplete Information

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IEEE/CAA Journal of Automatica Sinica 2024年第3期11卷 690-697页

作者： Yun Zhang Lulu Zhang yunze cai the Department of Automation Shanghai Jiao Tong UniversityShanghai 200240 the Key Laboratory of System Control and Information Processing Ministry of Education of ChinaShanghai 200240China

This paper presents a novel cooperative value iteration(VI)-based adaptive dynamic programming method for multi-player differential game models with a convergence *** players are divided into two groups in the learning process and adapt their policies *** method removes the dependence of admissible initial policies,which is one of the main drawbacks of the PI-based ***,this algorithm enables the players to adapt their control policies without full knowledge of others’ system parameters or control *** efficacy of our method is illustrated by three examples.

关键词： Adaptive dynamic programming incomplete information multi-player differential game value iteration

Support vector machine ensemble using rough sets theory

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High Technology Letters 2006年第1期12卷 58-62页

作者：胡中辉 cai yunze He Xing Xu Xiaoming Department of Automation Shanghai Jiaotong University Shanghai 200030 P.R. China

A support vector machine （SVM） ensemble classifier is proposed. Performance of SVM trained in an input space eonsisting of all the information from many sources is not always good. The strategy that the original input space is partitioned into several input subspaces usually works for improving the performance. Different from conventional partition methods, the partition method used in this paper, rough sets theory based attribute reduction, allows the input subspaces partially overlapped. These input subspaces can offer complementary information about hidden data patterns. In every subspace, an SVM sub-classifier is learned. With the information fusion techniques, those SVM sub-classifiers with better performance are selected and combined to construct an SVM ensemble. The proposed method is applied to decision-making of medical diagnosis. Comparison of performance between our method and several other popular ensemble methods is done. Experimental results demonstrate that our proposed approach can make full use of the information contained in data and improve the decision-making performance.

关键词： support vector machines rough sets ensemble attribute reduction decision fusion

Missile-Target Situation Assessment Model Based on Reinorcement Learning

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Journal of Shanghai Jiaotong university(Science) 2020年第5期25卷 561-568页

作者： ZHANG Yun LU Runyan cai yunze Department of Automation Key Laboratory of System Control and Information Processing of Ministry of EducationKey Laboratory of Marine Intelligent Equipment and System of Ministry of EducationShanghai Jiao Tong UniversityShanghai 200240China

In situation assessment(SA)of missile versus target fighter,the traditional SA models generally have the characteristics of strong subjectivity and poor dynamic *** paper considers SA as an expectation of future returns and establishes a missile-target simulation battle *** actor-critic(AC)algorithm in reinforcement learning(RL)is used to train the evaluation network,and a missile-target SA model is established in simulation battle *** and comparative experiments show that the model can effectively estimate the expected effect of missile attack under the current situation,and it provides an effective basis for missile attack decision.

关键词： situation assessment(SA) battle model reinforcement learning(RL) actor-critic(AC)algorithm

A Consensus-based Filtering Algorithm with State Constraints 36

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A Consensus-based Filtering Algorithm with State Constraints

Data Augmentation of Ship Wakes in SAR Images Based on Improved CycleGAN

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作者： Yajing Ma Song Guo Shuyi Lin yunze cai Department of Automation Shanghai Jiao Tong Universityand Key Laboratory of System Control and Information ProcessingMinistry of Education of China Shanghai Academy of Spaceflight Technology

ISBN: (纸本)9781538629185

This paper proposes a consensus-based filtering algorithm to solve a nonlinear information fusion problem in multi-agent system that the state vector of the target is *** method is based on the Kalman-Consensus filtering algorithm,Extended Kalman filter and null space *** on target tracking prove the feasibility of the algorithm in dealing with state estimation of nonlinear systems under linear and nonlinear *** is demonstrated that a significant increase in the tracking precision can be expected via the proposed method compared with traditional Kalman-Consensus filter.

关键词： State Estimation Constrained Filtering Consensus Algorithm Kalman Filter Multi-agent System

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Journal of Shanghai Jiaotong university(Science) 2024年第4期29卷 702-711页

作者： YAN Congqiang GUO Zhengyun cai yunze Department of Automation Shanghai Jiao Tong UniversityShanghai200240China Key Laboratory of System Control and Information Processing of Ministry of Education Shanghai200240China China Airborne Missile Academy Luoyang471009HenanChina National Key Laboratory of Air-Based Information Perception and Fusion Luoyang471000HenanChina

The study on ship wakes of synthetic aperture radar(SAR)images holds great importance in detecting ship targets in the *** this study,we focus on the issues of low quantity and insufficient diversity in ship wakes of SAR images,and propose a method of data augmentation of ship wakes in SAR images based on the improved cycle-consistent generative adversarial network(CycleGAN).The improvement measures mainly include two aspects:First,to enhance the quality of the generated images and guarantee a stable training process of the model,the least-squares loss is employed as the adversarial loss function;Second,the decoder of the generator is augmented with the convolutional block attention module(CBAM)to address the issue of missing details in the generated ship wakes of SAR images at the microscopic *** experiment findings indicate that the improved CycleGAN model generates clearer ship wakes of SAR images,and outperforms the traditional CycleGAN models in both subjective and objective aspects.

关键词： synthetic aperture radar(SAR) ship wake data augmentation cycle-consistent generative adversarial network(CycleGAN) attention mechanism

Mean waiting time approximation for a real time polling system

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High Technology Letters 2007年第2期13卷 136-139页

作者：曹春生 Yin Rupo Zhang Weidong cai yunze Department of Automation Shanghai Jiaotong University Shanghai 200030 P.R.China

This paper considers a novel polling system with two classes of message which can experience an up-per bounded time before being served. The station serves these two classes with mixed service discipline, one class with exhaustive service discipline, and the other with gated service discipline. Using iterative method, we have developed an approximation method to obtain the mean waiting time for each message class. The performance of approximation has been compared with the simulation results. The expression for the upper bound of waiting time is given too.

关键词： message class mean waiting time upper bound

Information Extraction of Bionic Camera-Based Polarization Navigation Patterns Under Noisy Weather Conditions

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Journal of Shanghai Jiaotong university(Science) 2020年第1期25卷 18-26页

作者： AH SAN Muhammad cai yunze ZHANG Weidong Department of Automation Ministry of Education of ChinaShanghai Jiao Tong UniversityShanghai 200240China Key Laboratory of System Control and Information Processing Ministry of Education of ChinaMinistry of Education of ChinaShanghai Jiao Tong UniversityShanghai 200240China Key Laboratory of Marine Intelligent Equipment and System Ministry of Education of ChinaShanghai Jiao Tong UniversityShanghai 200240China

Light polarization is the phenomenon that describes the oscillations and orientations of the light *** light is a source of substantial cue for navigation in many marine and land-dwelling *** work investigates the challenges of obtaining information regarding polarization under various conditions by observing the phenomenology of the ommatidium in many *** conditions can be because of haze or the presence of clouds in the *** molecules are greater in volume and scale in such atmospheric *** sunlight crosses through these molecules of aerosol,its polarization information is *** distorted pattern has a little or no information on neutral points of light *** the basis of the relationship bet ween wavelength of sunlight and polarization,we propose a novel hue based color mixing(HBCM)model to calculate the polarization information and orientation information more accurately and *** method improves the symmetries of polarization patterns and eliminates the effect of *** of polarization patterns are compared with red,green and blue(RGB)spectrum and these differences are quantified and compared especially under high noisy weather conditions.

关键词： light polarization ommatidium aerosols neutral points hue based color mixing(HBCM)

Improved Spatial Registration Algorithm for Sensors on Multiple Mobile Platforms

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Journal of Shanghai Jiaotong university(Science) 2022年第5期27卷 638-648页

作者： LÜRunyan PENG Na WU Yi cai yunze Department of Automation Key Laboratory of System Control and Information Processing of Ministry of EducationKey Laboratory of Marine Intelligent Equipment and System of Ministry of EducationShanghai Jiao Tong UniversityShanghai200240China Shanghai Aerospace Electronic Technology Institute Shanghai Academy of Spaceflight TechnologyShanghai201109China Alibaba(China)Co. Ltd.Hangzhou311121China

This paper focuses on the spatial registration algorithm under the earth-center earth-fixed(ECEF)coordinate system for multiple mobile *** sensor measurement biases are discussed with the attitude information of the platform into ***,the biased measurement model is ***,the maximum likelihood registration(MLR)algorithm is discussed to simultaneously estimate the measurement biases and the target ***,an improved online MLR(IMLR)algorithm is proposed through a sliding window of adaptive *** results demonstrate that the proposed IMLR algorithm effectively improves the realtime ability of the system and can approach similar estimation accuracy to the conventional MLR algorithm.

关键词： spatial registration 3D sensors improved online maximum likelihood registration(IMLR)

Modeling and simulation for a new virtual-clock-based collision resolution algorithm

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High Technology Letters 2006年第2期12卷 124-128页

作者：尹汝泼 cai yunze He xing Zhang weidong Xu xiaoming Department of Automation Shanghai Jiaotong University Shanghai 200030 P.R. China

Virtual time Ethemet is a multiple access protocol proposed to provide FCFS transmission service over the predominant Ethemet bus. It incorporates a novel message-rescheduling algorithm based on the virtual clock mechanism. By manipulating virtual clocks back up over a common virtual time axis and performing timely collision resolution, the algorithm guarantees the system＇s queuing strictness. The protocol is particularly modeled as a finite state machine and implemented using OPNET tools. Simulation studies prove its correctness and effectiveness.

关键词： collision resolution virtual clock Ethernet OPNET