检索结果-内蒙古大学图书馆

Impulsive thrust strategy for orbital pursuit-evasion games based on impulse-like constraint

Chinese Journal of Aeronautics 2025年第1期38卷 520-536页

作者： Hongbo WANG Yao ZHANG Hao LIU Kunpeng ZHANG School of Aerospace Engineering Beijing Institute of TechnologyBeijing 100081China National Key Laboratory of Space Intelligent Control Beijing Institute of Control EngineeringBeijing 100094China

This paper proposes a novel impulsive thrust strategy guided by optimal continuous thrust strategy to address two-player orbital pursuit-evasion game under impulsive thrust *** strategy seeks to enhance the interpretability of impulsive thrust strategy by integrating it within the framework of differential game in traditional continuous ***,this paper introduces an impulse-like constraint,with periodical changes in thrust amplitude,to characterize the impulsive thrust ***,the game with the impulse-like constraint is converted into the two-point boundary value problem,which is solved by the combined shooting and deep learning method proposed in this *** learning and numerical optimization are employed to obtain the guesses for unknown terminal adjoint variables and the game terminal ***,the accurate values are solved by the shooting method to yield the optimal continuous thrust strategy with the impulse-like ***,the shooting method is iteratively employed at each impulse decision moment to derive the impulsive thrust strategy guided by the optimal continuous thrust *** examples demonstrate the convergence of the combined shooting and deep learning method,even if the strongly nonlinear impulse-like constraint is *** effect of the impulsive thrust strategy guided by the optimal continuous thrust strategy is also discussed.

关键词： Orbital pursuit-evasion game Differential game Impulsive thrust Deep learning Shooting method

来源：评论

学校读者我要写书评

暂无评论

Autonomous Recommendation of Fault Detection Algorithms for spacecraft

引用

IEEE/CAA Journal of Automatica Sinica 2024年第1期11卷 273-275页

作者： Wenbo Li Baoling Ning the National Key Laboratory of Science and Technology on Space Intelligent Control Beijing Institute of Control EngineeringBeijing 100094China the School of Data Science and Technology Heilongjiang UniversityHarbin 150001China

Dear Editor, This letter deals with the problem of algorithm recommendation for online fault detection of spacecraft. By transforming the time series data into distributions and introducing a distribution-aware measure, a principal method is designed for quantifying the detectabilities of fault detection algorithms over special datasets.

关键词： fault introducing letter

来源：评论

学校读者我要写书评

暂无评论

Autonomous relative optical navigation based on unified modeling of external systematic errors

引用

Chinese Journal of Aeronautics 2024年第3期37卷 282-289页

作者： Dayi WANG Bowen SUN Maodeng LI Jiaxing LI Haiyin ZHOU Beijing Institute of Spacecraft System Engineering Beijing 100191China College of Sciences National University of Defense TechnologyChangsha 410073China National Key Laboratory of Space Intelligent Control Beijing Institute of Control EngineeringBeijing 100191China

To solve the problem that external systematic errors of the optical camera cannot be fully estimated due to limited computing resources,a unified dimensionality reduction representation method for the external systematic errors of the optical camera is proposed,and autonomous relative optical navigation is *** camera translational and misalignment errors are converted into a three-dimensional rotation error,whose differential model can be established through specific attitude control and appropriate ***,the rotation error and the relative motion state are jointly estimated in an augmented Kalman filter *** with the traditional method that estimates the camera translational and misalignment errors,the proposed method reduces the computational complexity in that the estimated state dimension is ***,as demonstrated by numerical simulation,the estimation accuracy is improved significantly.

关键词： Unified model Systematic errors Optical navigation Observability analysis Calibration

来源：评论

学校读者我要写书评

暂无评论

Digitally-Assisted Analog Self-Interference Cancellation for STAR System

引用

China Communications 2025年第3期22卷 36-53页

作者： Pan Wensheng Shi Chengzhe Li Tong Shen Ying Shao Shihai National Key Laboratory of Wireless Communications University of Electronic Science and Technology of ChinaChengdu 611731China Laboratory of Electromagnetic Space Cognition and Intelligent Control Beijing 100089China

To enable simultaneous transmit and receive(STAR)on the same frequency in a densely deployed space with multi-interference sources,this work proposes a digitally-assisted analog selfinterference cancellation method,which can acquire reference signals through flexible wired/wireless switching *** on this method,the Minimum Mean Square Error algorithm with known channel state information is derived in detail,determining the upper limit of the cancellation performance,and the Adaptive Dithered Linear Search algorithm for real-time engineering cancellation is *** correctness of theoretical analysis is verified by the practical self-interference channel measured by a vector network ***,we have designed and implemented the corresponding multiinterference cancellation prototype with the digitallyassisted structure,capable of handling multiple interferences(up to three)and supporting a large receive bandwidth of 100 MHz as well as a wide frequency coverage from 30 MHz to 3000 *** test results demonstrate that in the presence of three interferences,when the single interference bandwidth is 0.2/2/20 MHz(corresponding to the receive bandwidth of 2/20/100 MHz),the cancellation performance can reach 46/32/22 dB or more.

关键词： analog self-interference cancellation channel measurement digitally-assisted multiinterference prototype design simultaneous transmit and receive

来源：评论

学校读者我要写书评

暂无评论

Parameter-Free Shifted Laplacian Reconstruction for Multiple Kernel Clustering

引用

IEEE/CAA Journal of Automatica Sinica 2024年第4期11卷 1072-1074页

作者： Xi Wu Zhenwen Ren F.Richard Yu the School of National Defence Science and Technology Southwest University of Science and TechnologyMianyang 621010China the School of National Defence Science and Technology Southwest University of Science and TechnologyMianyang 621010 the Guangxi Key Laboratory of Machine Vision and Intelligent Control Wuzhou UniversityWuzhou 543002 the Guangdong Laboratory of Artificial Intelligence and Digital Economy(SZ) Shenzhen 518060China

Dear Editor,This letter proposes a parameter-free multiple kernel clustering(MKC)method by using shifted Laplacian *** MKC can effectively cluster nonlinear data,but it faces two main challenges:1)As an unsupervised method,it is up against parameter problems which makes the parameters intractable to tune and is unfeasible in real-life applications;2)Only considers the clustering information,but ignores the interference of noise within Laplacian.

关键词： parameter letter Parameter

来源：评论

学校读者我要写书评

暂无评论

Accuracy Evaluation of Marginalized Unscented Kalman Filter

引用

space(Science & technology) 2023年第1期3卷 597-605页

作者： Han Yan Hanyu Liu Xiucong Sun Ming Xu National Key Laboratory of Space Intelligent Control Beijing Institute of Control EngineeringBeijingChina Beijing Sun Wise Space Technology Ltd BeijingChina Beihang University BeijingChina

Compared with a conventional unscented Kalman filter(UKF),the recently proposed marginalized unscented Kalman filter(MUKF)uses a partially sampling strategy to achieve similar filter accuracy with fewer sigma points,demonstrating its powerful ability to deal with state estimation with mixed linearity and ***,the hypothesis that the accuracy of MUKF is equivalent to that of UKF is not true for all *** this paper,it is proved that when the state equation is expressed as a differential equation,the accuracy of MUKF is equivalent to that of UKF only when the propagations of the states to be sampled and the states not to be sampled in MUKF are independent of each *** above condition corresponds to a common problem in engineering,which is a system with measurement *** theoretical proof and numerical simulation,it is verified in this paper that for the systems with measurement biases,the differences of the computed means and covariances in filtering recursions between MUKF and UKF are restricted to the same order infinitesimal as the square of the scaling *** sum up,this paper evaluates the accuracy of MUKF,providing references for engineers to choose MUKF or UKF in different systems.

关键词： filtering equation scaling

来源：评论

学校读者我要写书评

暂无评论

Research on intelligent Collaborative Perception of space Non-cooperative Targets Based on AOCS Platform 1

引用

7th Chinese Conference on Swarm Intelligence and Cooperative control, CCSICC 2023

作者： Du, Hang Hu, Haixia Zhang, Haibo Beijing Institute of Control Engineering Beijing China National Key Laboratory of Science and Technology On Space Intelligent Control Beijing China

ISBN: (数字)9789819733323

ISBN: (纸本)9789819733316

This article provides a detailed introduction to the space non-cooperative targets intelligent collaborative perception module, whose main function is to improve the system’s understanding of the target and task environment through recognition, judgment, learning, and other processes, based on the target model containing multidimensional information obtained from target reconstruction, as well as data resources such as target model characteristic test data and target feature digital volume library. Module includes a space target feature dataset, a space target intelligent cooperative perception algorithm interaction environment, space target model feature clustering and recognition software, space target model matching and situation association software, space target position and attitude measurement software, and a parallel computing module. The dataset is used to train the space target model feature clustering and recognition software to obtain the model parameters of the recognition algorithm, which is used for the recognition of space target identity information and local feature information;the space target model matching and situation association software further associates the recognition information of the local features of the space target. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Association reactions

来源：评论

学校读者我要写书评

暂无评论

End-to-end Mars entry,descent,and landing modeling and simulations for Tianwen-1 guidance,navigation,and control system

引用

Astrodynamics 2022年第1期6卷 53-67页

作者： Chao Xu Xiangyu Huang Minwen Guo Maodeng Li Jinchang Hu Xiaolei Wang Beijing Institute of Control Engineering Beijing 100094China National Key Laboratory of Science and Technology on Space Intelligent Control Beijing 100094China

On May 15,2021,the Tianwen-1 lander successfully touched down on the surface of *** ensure the success of the landing mission,an end-to-end Mars entry,descent,and landing(EDL)simulator is developed to assess the guidance,navigation,and control(GNC)system performance,and determine the critical operation and lander *** high-fidelity models of the Mars atmosphere,parachute,and lander system that are incorporated into the simulator are *** the developed simulator,simulations of the Tianwen-1 lander EDL are *** results indicate that the simulator is valid,and the GNC system of the Tianwen-1 lander exhibits excellent performance.

关键词： Mars entry,descent,and landing(EDL) modeling and simulation Tianwen-1 lander guidance,navigation,and control(GNC)

来源：评论

学校读者我要写书评

暂无评论

Entry vehicle control system design for the Tianwen-1 mission

引用

Astrodynamics 2022年第1期6卷 27-37页

作者： Jinchang Hu Xiangyu Huang Maodeng Li Minwen Guo Chao Xu Yu Zhao Wangwang Liu Xiaolei Wang Beijing Institute of Control Engineering Beijing 100094China National Key Laboratory of Science and Technology on Space Intelligent Control Beijing 100094China

The entry vehicle for the Tianwen-1 mission successfully landed on the surface of Mars at 7:18 AM BJT on May 15,*** successful landing made China the first country to orbit,land,and release a rover in their first attempt at the Mars *** guidance,navigation,and control(GNC)system plays a crucial role in the entry,descent,and landing(EDL)*** study focused on the attitude control component of the GNC system *** EDL phase can be divided into several sub-phases,namely the angle of attack control phase,lift control phase,parachute descent phase,and powered descent *** sub-phase has unique attitude control requirements and *** paper introduces the key aspects of designing attitude controllers for each ***,flight results are presented and analyzed.

关键词： Tianwen-1 Mars landing attitude control robust control fault diagnosis

来源：评论

学校读者我要写书评

暂无评论

Adaptive entry guidance for the Tianwen-1 mission

引用

Astrodynamics 2022年第1期6卷 17-26页

作者： Minwen Guo Xiangyu Huang Maodeng Li Jinchang Hu Chao Xu Beijing Institute of Control Engineering Beijing 100094China National Key Laboratory of Science and Technology on Space Intelligent Control Beijing 100094China

To meet the requirements of the Tianwen-1 mission,adaptive entry guidance for entry vehicles,with low lift-to-drag ratios,limited control authority,and large initial state bias,was ***,the entry guidance law is divided into four distinct phases:trim angle-of-attack phase,range control phase,heading alignment phase,and trim-wing deployment *** the range control phase,the predictor–corrector guidance algorithm is improved by planning an on-board trajectory based on the Mars Science laboratory(MSL)entry guidance *** nominal trajectory was designed and described using a combination of the downrange value and other states,such as drag acceleration and altitude *** a large initial state bias,the nominal downrange value was modified onboard by weighing the landing accuracy,control authority,and parachute deployment *** biggest advantage of this approach is that it allows the successful correction of altitude errors and the avoidance of control *** overview of the optimal trajectory design process,including a discussion of the design of the initial flight path angle,relevant event trigger,and transition conditions between the four phases,was also ***,telemetry data analysis and post-flight assessment results were used to illustrate the adaptive guidance law,create good conditions for subsequent parachute reduction and power reduction processes,and gauge the success of the mission.

关键词： Tianwen-1 mission adaptive entry guidance on-board trajectory planning telemetry data analysis post-flight assessment

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：