دانلود کتاب نانوماهواره‌ها، ماهواره‌های مکعبی عصر جدید فضا برای رصد فضا ۱

Space exploration requires special technological achievements due, on the one hand, to the extreme conditions under which equipment aboard satellites or space probes operate (vacuum, temperature, vibrations, radiation, etc.); and, on the other hand, to the fact that space objects must evolve autonomously without direct operator intervention. Considerable resources and expertise are required to operate devices in these conditions. This has limited the number of countries able to invest in this field via specific structures, such as space agencies. Although space remains a field of attention and fascination for many, we often overlook the revolutionary applications that can only be carried out from space, and which concern our daily lives: numerous applications linked to a global vision of the Earth’s surface, its environment and meteorological processes, communication and content dissemination, positioning, traceability and remote piloting from space, security and surveillance, the realization of certain biological processes and the impact on medical effects, improving our knowledge of the Universe and the evolution of other planets, etc. These ever-growing applications have made it a major economic sector with significant geopolitical and security implications. Paradoxically, technological miniaturization and the privatization of the sector have opened up this industrial sector. Today, it is highly fragmented, in the same way as other state-owned sectors which have undergone this evolution following a strong opening-up and involvement of the private sphere. Many new players and ambitious initiatives are emerging. The fierce competition between stakeholders means that innovation is essential, as are changes to the way in which developments are managed, financed and marketed. However, NewSpace cannot escape the experience accumulated over the years. The fundamentals have not changed, and the space environment calls for the development of ever more elaborate devices – automated, but just as robust, guaranteeing optimal operation in this hostile environment. The agile method is the only way to learn about new challenges and identify critical points, without getting bogged down in systematic and costly approaches. With this in mind, in addition to a sound knowledge of all of the development and validation stages of the technology used, it is very instructive to analyze past successes and failures. This applies to even the most distant historical developments, right through to the successive stages in the development of a component. It is this analysis of failure that enables us to quickly focus on the most critical points, prioritize them and thus make the technical solutions considered much more reliable in a much shorter time. Nanosatellites, CubeSats of the NewSpace Era for Space Observation 1, 2 and 3 are designed to provide readers with the basics through an analysis of space history and the various stages of instrument development. Based on feedback from developments and analyses carried out within the framework of research, these books will enable those who so wish to perfect their knowledge and vision of this fast-changing sector, and to better understand its evolution: from fundamentals to breakthroughs.