检索结果-南通市图书馆

第36届中国控制会议

作者： Lin Zhao Shuo Wang Yong Hao xiande wu College of Automation Harbin Engineering University

ISBN: (纸本)9781538629185

Mission planning is an effective support and important guarantee for agile satellites to implement earth observation missions. According to traditional mission planning methods by which the mission and attitude are independently planned, the observation efficiency of agile satellites cannot be fully utilized. This paper considers the cooperative planning of mission and attitude, and establishes a multi-objective cooperative planning model of agile satellites based on dynamic traveling salesman model. In view of the complexity of the encoding method for the traditional single genetic algorithm, a novel algorithm combining genetic algorithm and polynomial fitting is proposed to reduce the encoding dimension of genetic algorithm. In this algorithm, quintic polynomials are used to estimate the attitude paths, and genetic algorithm is used to provide the cooperative planning with the observation order and the relative observation time. The numerical results demonstrate that the proposed algorithm can output the smooth attitude path and the convergence speed can be improved.

关键词： Agile satellites mission planning genetic algorithm polynomial fitting

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Pose-attitude integration collaborative planning algorithm based on genetic algorithm 36

Pose-attitude integration collaborative planning algorithm b...

引用

第36届中国控制会议

作者： Yuchi Yi xiande wu Chuqi Sun Yue Deng Yu Cheng College of Aerospace and Civil Engineering Harbin Engineering University

ISBN: (纸本)9781538629185

In order to realize the non-cooperative attitude motion capture,we propose a collaborative planning method for orbit and attitude during approaching process based on genetic algorithm and kinematic equation of dual quaternion *** of all,consider complex constraints conditions in the approach process;analyze all kinds of natural constraints in the approximation process;analyze the integrity of natural constraints;then combined with the relative motion model to design genetic algorithms coding rules,the fitness function and genetic mutation operator;finally,confirm the algorithm’s effectiveness by mathematical simulation.

关键词： On-orbit movement genetic algorithm target capture environmental constraints

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

The Integration of Adaptive Cooperative Control for Position and Attitude of Distributed Spacecraft 36

The Integration of Adaptive Cooperative Control for Position...

引用

第36届中国控制会议

作者： Yaen Xie Zhen Shi Chuqi Sun Yue Deng xiande wu College of Automation Harbin Engineering University College of Aerospace and Civil Engineering Harbin Engineering University

ISBN: (纸本)9781538629185

It is an important guarantee to ensure highly reliability,strong adaptability of distributed spacecraft that the adaptive cooperatives control for integration of the attitude and *** to the performance requirement of the distributed spacecraft in the process of configuration adjustment,there is established a integration model of position and attitude based on dual quaternion,and design a cooperative controller based on sliding mode variable structure *** on which we derive the adaptive cooperative control algorithm for distributed spacecraft integration of position and attitude by introducing the interference estimating algorithm through extended least squares method and weight algorithm of multi-spacecraft’s ***,mathematical simulation has been done to verify the stability and efficiency of the designed *** adaptive cooperative control algorithm for distributed spacecraft covers integration of position and attitude,collaboration requirement of multi-spacecraft and environment interference,and also ensures the performance for its efficiency,stability,and cooperation,which enhances system’s control ability.

关键词： Distributed Spacecraft Adaptive Cooperative Control Dual Quaternion Position and Attitude Integration

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Path Planning for Lunar Surface Robots Based on Improved Ant Colony Algorithm

引用

Transactions of Nanjing University of Aeronautics and Astronautics 2022年第6期39卷 672-683页

作者： SONG Ting SUN Yuqi YUAN Jianping YANG Haiyue wu xiande School of Astronautics Northwestern Polytechnical UniversityXi’an 710072P.R.China College of Aerospace and Civil Engineering Harbin Engineering UniversityHarbin 150001P.R.China

In the real-world situation,the lunar missions’scale and terrain are different according to various operational regions or worksheets,which requests a more flexible and efficient algorithm to generate task paths.A multi-scale ant colony planning method for the lunar robot is designed to meet the requirements of large scale and complex terrain in lunar *** the algorithm,the actual lunar surface image is meshed into a gird map,the path planning algorithm is modeled on it,and then the actual path is projected to the original lunar surface and *** classical ant colony planning algorithm is rewritten utilizing a multi-scale method to address the diverse task ***,the path smoothness is also considered to reduce the magnitude of the steering ***,several typical conditions to verify the efficiency and feasibility of the proposed algorithm are presented.

关键词： ant colony algorithm grid map multi scale path smoothing

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

热流对超晶格结构热传导影响的分子动力学研究

引用

哈尔滨工程大学学报 2017年第6期38卷 945-949页

作者：张兴丽吴限德东北林业大学机电工程学院黑龙江哈尔滨150040 哈尔滨工程大学航天与建筑工程学院黑龙江哈尔滨150001

超晶格材料的传热性能对其在热电设备、微电子以及光电子等领域的应用起决定性作用。本文采用非平衡态分子动力学方法研究了热流对超晶格结构热导率的影响。利用Tersoff势函数描述超晶格结构中Si粒子与Ge粒子的相互作用,建立了Si/Ge超... 详细信息

超晶格材料的传热性能对其在热电设备、微电子以及光电子等领域的应用起决定性作用。本文采用非平衡态分子动力学方法研究了热流对超晶格结构热导率的影响。利用Tersoff势函数描述超晶格结构中Si粒子与Ge粒子的相互作用,建立了Si/Ge超晶格结构的稳态导热模型。通过分析热流方向上系统内部的温度分布,得出超晶格结构所施加热流的大小和方向都对热导率产生重大影响。研究结果表明:超晶格结构热导率随热流的增大而增大,并且当热流及温度升高到一定程度,超晶格结构可能会发生非傅里叶热传导现象;热流由Si薄膜流向Ge薄膜时超晶格结构热导率大于由Ge薄膜流向Si薄膜时的热导率。

关键词：分子动力学超晶格结构热流热导率非平衡态温度分布

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

有推力约束航天器交会的模型预测制导策略

引用

哈尔滨工程大学学报 2017年第5期38卷 759-765页

作者：叶东张宗增吴限德哈尔滨工业大学卫星技术研究所黑龙江哈尔滨150001 哈尔滨工程大学航天与建筑工程学院黑龙江哈尔滨150001

针对具有推力幅值和方向约束的航天器交会问题,本文提出了基于模型预测控制算法的制导策略。在建立推力幅值约束和方向约束数学模型的基础上,将交会相对动力学模型与约束模型预测控制理论相结合,以离散二次型函数为性能指标,建立了航天... 详细信息

针对具有推力幅值和方向约束的航天器交会问题,本文提出了基于模型预测控制算法的制导策略。在建立推力幅值约束和方向约束数学模型的基础上,将交会相对动力学模型与约束模型预测控制理论相结合,以离散二次型函数为性能指标,建立了航天器交会的模型预测控制算法。本文分析了影响系统稳定性的三大因素:局部镇定器、终端代价函数和终端约束集。仿真结果证实了算法的有效性和可行性:在推力大小和方向有约束的情况下,实现了追踪航天器与目标航天器的快速交会。

关键词：航天器交会制导推力约束离散化模型预测控制混杂系统二阶锥规划

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Multi-spacecraft position-attitude coupling model based on dual quaternion

Multi-spacecraft position-attitude coupling model based on d...

引用

第37届中国控制会议

作者： Chengchen Deng Zhen Shi Xinzhu Sun xiande wu Wenbin Bai Shiyi Li Qingrui Zhou Yong Hao College of Automation Harbin Engineering University College of Aerospace and Civil Engineering Harbin Engineering University Qian Xuesen Laboratory of Space Technology

With the development of space science and technology, the requirements of spacecraft are increasing, and it is significant to research the multi-spacecraft system model. Based on the dual quaternion theory, this paper deduces the coupling kinematics equation of multi-spacecraft, and points out the coupling effect of relative position and attitude. After that, the simulation analysis of 6 kinds of multi-spacecraft is carried out based on the established multi-spacecraft position and orbit integration model, in which the six cases are 5, 15, 25, 35, 45 and 55 satellites respectively. Finally, the correctness and practicability of the model are verified by comparing between Matlab and STK simulation results.

关键词： Attitude-position coupling model Dual quaternion Multi-spacecraft

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

A Cooperative Route Planning Method for Multi-UAVs Based-on the Fusion of Artificial Potential Field and B-spline Interpolation

A Cooperative Route Planning Method for Multi-UAVs Based-on ...

引用

第37届中国控制会议

作者： Wenbin Bai xiande wu Yaen Xie Yu Wang Han Zhao Kefan Chen Yong Li Yong Hao College of Aerospace and Civil Engineering Harbin Engineering University College of Automation Harbin Engineering University

This paper deals with the route planning problem for multi-UAVs formation. It provides a method of improved artificial potential field by introducing a longitudinal random factor and B-spline interpolation. The longitudinal random factor is used to solve the problem of falling into local minimum, when the B-spline interpolation is used to smooth the planned route. The simulated results show that the proposed method can solve the route planning problem of multi-UAVs.

关键词： Route planning multi-UAVs artificial potential field longitudinal random factor B-spline interpolation

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

RTS filtering with a combined view time comparison algorithm for GNSS navigation system

RTS filtering with a combined view time comparison algorithm...

引用

第37届中国控制会议

作者： Zejing Xing Yu Cheng Weidong Zhou xiande wu Chengchen Deng Shilong Li Yong Hao Hui Wang College of Automation Harbin Engineering University College of Aerospace and Civil Engineering Harbin Engineering University Qian Xuesen Laboratory of Space Technology

The combined common-view time comparison algorithm for GNSS navigation system is the key technology, The satellite navigation receiver can calculate the delay of signal transmission and transmit time and frequency. Compared with single system CV time comparison algorithm, the combined CV（Common View） time comparison algorithm considers the unification of time and space coordinates of different systems and data processing of time comparison results, and combines Kalman filtering and RTS post smoothing. Using Kalman filtering for the results, this research uses RTS post smoothing on the basis of filtering, in order to improve the precision of time comparison.

关键词： Common-view Kalman filtering RTS post-smoothing GNSS combined common-view

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Neighbor Search based Allocation Method for Satellite Swarm with Large Scale Tasks

Neighbor Search based Allocation Method for Satellite Swarm ...

引用

第三十九届中国控制会议

作者： Zhao Han wu xiande Feng Haolong Cui Hongtao Yang Yuheng Zhang Zehua Liu Chaozhen Hao Yong College of Aerospace and Civil Engineering Harbin Engineering University Shanghai Aerospace control Technology Institute

With the increasing number of agile satellites, the number of on-orbit tasks is also increasing. The task planning for satellite swarm with large scale tasks plays an important role in the management of satellite swarm. Feasible solution finding in a large space composed by the mapping among satellites and tasks is an NP hard problem. Consequently, this paper adopts two-level large neighborhood search algorithm. Firstly, the planning for satellite swarm with large scale tasks is decomposed into a single satellite scheduling problem, and then based on the constraint guided search strategy, neighborhood search is carried out in the solution space. At the same time, in order to improve the search efficiency, a certain scale of population is designed and the PSO algorithm is used to accelerate the convergence. Finally, with the given parameters of satellites and tasks, the algorithm designed in this paper is verified by numerical simulation. The simulation results show that the method can distribute the observation tasks to each satellite evenly without conflict.

关键词： task allocation satellite swarm task planning neighbor search PSO

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

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

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

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

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

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：