TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN最新文献_第6页

Estimation Algorithm of Relative Position and Attitude during Proximity Rendezvous Using Multiple Ultra-Wide-Band Devices 多超宽带设备近距离交会相对位置姿态估计算法

TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN Pub Date : 1900-01-01 DOI: 10.2322/TASTJ.17.43

Mikihiro Ikura, S. Ikari, A. Tomiki, R. Funase, S. Nakasuka

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引用次数: 1

Analysis of Motion Control for a Quadruped Ground-Gripping Robot for Minor Body Exploration on Uneven Terrain 非平坦地形小体探测四足抓地机器人运动控制分析

TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN Pub Date : 1900-01-01 DOI: 10.2322/tastj.19.794

Warley F. R. Ribeiro, Kentaro Uno, K. Nagaoka, Kazuya Yoshida

引用次数: 1

From Behavioural to In-Depth Modelling of a Scalable Spacecraft Power System in SystemC-AMS using Continuous Integration Techniques 基于持续集成技术的SystemC-AMS中可扩展航天器动力系统从行为到深度建模

TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN Pub Date : 1900-01-01 DOI: 10.2322/tastj.19.709

J. Häseker, N. Aksteiner, A. Ofenloch

引用次数: 1

Risk Assessment of a Large Constellation of Satellites in Low-Earth Orbit 近地轨道大型卫星星座的风险评估

TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN Pub Date : 1900-01-01 DOI: 10.2322/tastj.20.10

Yuri Matsushita, Y. Yoshimura, T. Hanada, Yuki Itaya, Tadanori Fukushima

引用次数: 1

Measurement of Momentum to Move with Hypervelocity Impacts of Projectile 弹丸超高速撞击运动动量的测量

TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN Pub Date : 1900-01-01 DOI: 10.2322/TASTJ.17.427

K. Hayashi, M. Nishida, H. Kurosaki, T. Yanagisawa

引用次数: 1

Return and Recovery Operation of the Hayabusa2 Sample Return Capsule 隼鸟2号样品回收舱的返回和回收操作

TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN Pub Date : 1900-01-01 DOI: 10.2322/tastj.19.514

Tetsuya Yamada, K. Kawahara, Taichi Itou, S. Nakazawa

引用次数: 3

Precise Control of Beam Formation for Mobile Communication Satellites Based on On-board Measurements of the Shape of the Large Reflector Surface 基于星载大反射面形状测量的移动通信卫星波束形成精确控制

TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN Pub Date : 1900-01-01 DOI: 10.2322/TASTJ.17.33

M. Akioka, A. Miura, T. Orikasa, H. Tsuji, M. Toyoshima, Masaki Satoh, Y. Fujino

{"title":"Precise Control of Beam Formation for Mobile Communication Satellites Based on On-board Measurements of the Shape of the Large Reflector Surface","authors":"M. Akioka, A. Miura, T. Orikasa, H. Tsuji, M. Toyoshima, Masaki Satoh, Y. Fujino","doi":"10.2322/TASTJ.17.33","DOIUrl":"https://doi.org/10.2322/TASTJ.17.33","url":null,"abstract":"To achieve high throughput to effectively accommodate users, multi-beam systems reusing several frequency bands with small beams are effective. Using a reflector antenna with a very large aperture on the satellite is a promising option for next-generation mobile communication satellites for small user terminals with small beams. A deployable reflector is a flexible structure instead of the hard dish reflector. To improve the electric al performance of the antenna and avoid performance deterioration caused by aberration, the parabolic reflector must be accurately shaped. We propose continuous beam stabilization by optimizing the parameters for the phased array. If the reflector shape can be measured precisely while in orbit, the beam pattern and antenna performance can be corrected continuously by updating the excitation parameters based on the measured reflector shape with a brief time delay. For the proposed algorithm to perform antenna-pattern stabilization effectively, the shape of the reflector surface should properly determine the optimized phased array parameters to compensate for the deterioration of the antenna pattern. The objective of this study is to confirm the feasibility of the approach to beam pattern correction. The simulations of deformed reflector surfaces deteriorating the antenna pattern reveal that the application of optimized phased array parameters for the reflector shape can compensate for the deformation and recover the antenna pattern.","PeriodicalId":120185,"journal":{"name":"TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126113056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

JAXA Space Education Program for Informal Education: A Case Study of the “Aerospace School” Program 日本宇宙航空研究开发机构非正式教育空间教育计划:“航天学校”计划的案例研究

TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN Pub Date : 1900-01-01 DOI: 10.2322/tastj.17.506

Keiko Miyata

引用次数: 0

Two-Input-Torque for Hopping Exploration Robot to Enhance Reachability under Microgravity 基于双输入力矩的跳跃探索机器人微重力可达性优化

TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN Pub Date : 1900-01-01 DOI: 10.2322/tastj.19.719

Yusei Sasaki, Tomohiro Ishizuka, M. Bando, S. Hokamoto

引用次数: 0

Development of Mid Density Carbon Phenolic Ablators for Future Re-Entry Capsules 未来返回舱用中密度碳酚醛烧蚀器的研制

TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN Pub Date : 1900-01-01 DOI: 10.2322/TASTJ.17.354

K. Hirai, Akiko Nakazato, J. Koyanagi, Kazuhiko Yamada

{"title":"Development of Mid Density Carbon Phenolic Ablators for Future Re-Entry Capsules","authors":"K. Hirai, Akiko Nakazato, J. Koyanagi, Kazuhiko Yamada","doi":"10.2322/TASTJ.17.354","DOIUrl":"https://doi.org/10.2322/TASTJ.17.354","url":null,"abstract":"                                                                   ","PeriodicalId":120185,"journal":{"name":"TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132691693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2