Research On The Concept Of Mass-Energy Transfer On-Orbit And Technology Of Space-Base Pinpoint Attack Ground

At present, the application advantages of space technology are increasingly significant in military struggles. Space confrontations are inevitable. Researches on space confrontation related technologies are of vital importance in gaining the initiative in future military struggles, and in maintaining world peace.The space-based pinpoint attack ground is a mode of space confrontation, whose theories and techniques are involved in some forefront problems, and the research on the space-based pinpoint attack ground has a certain academic value and significance of engineering applications. Base on the space-based pinpoint attack ground,this thesis has a specific study on the related theories and space techniques. it contain two aspects: First, separation and compensation on-orbit, such as the launch of space-based missiles, space-based laser or microwave weapons, and the refueling, etc., which contains a series of optimized techniques of separation on-orbit and compensation on-orbit; Second, the space-based pinpoint attack ground. Due to the change of the space-time of ground targets, as well as the environmental impact, there can be orbit maneuver optimization and guidance optimization techniques. Therefore, in this thesis, researches are as follows:Part 1 the concept of mass-energy transfer on-orbit and the basic laws, and the techniques of some typical mass-energy transfer patterns are discussed, as follows:1) The concept of mass-energy transfer on-orbit is detailed defined and classified. The characteristics and basic features of different types of space mass-energy transfer are concluded. Analysis on the kinetics of mass-energy transfer reveals the momentum and angular momentum theorems of different types of mass-energy transfer. Meanwhile, based on the concept and characteristics of mass-energy transfer, kinetic models are established for several typical types of continuous space mass energy transfer, such as quality changed, quality unaltered but flowing and energy changed, etc., also for discrete conditions, such as quality or energy mutations.2) The impacts of mass-energy transfer on-orbit are summed up and divided into two categories: power effects and quality effects, and gave a definition. Meanwhile, the power effects and quality effects of different types of space mass-energy transfer are analyzed in details.3) Two typical mass energy transfer modes and related techniques of separation and compensation on-orbit are discussed: First, referring to separation on-orbit, by analyzing the relative motion of the platform and the separated part, the characteristics of different separation modes are acquired, while by analyzing the impacts of separation on the platform, regard it as a constraint condition– the impacts on platform and the constraint conditions of preventing crash, optimization techniques of separation on-orbit based on evolutionary algorithm are seriously researched; Second, referring to compensation on-orbit, based on its characteristics, space rendezvous and docking , compensation on-orbit are respectively discussed:①In the measurement of space rendezvous, there is a detailed discussion on the space independent measurement technology - precision measurement technology that uses GPS carrier phase, the measurement principles, the full cycle fuzzy solution based on space constraints and other issues are focused on.②In space rendezvous and docking, this thesis presents a cooperative control technology for rendezvous based on helix-approach orbit.③There is a detailed discussion on the impacts of space compensation on-orbit. Based on the power and quality effects, on-orbit compensation problems are discussed.4) Since mass-energy transfer has a certain impact on spacecraft (platform), this thesis detailedly analyzed the orbit deviation of the impact, and discussed on the orbit maintaining control techniques based on orbital perturbation theory. The impact of space mass-energy transfer has a feature that not only the space platform is affected by the disturbance torque caused by reverse thrust, but also its own structural changes. Therefore, it will strengthen attitude coupling, and increase the difficulty of attitude stability control and adjust control. This thesis focuses on a series of decoupling control technologies.Part 2 mainly discusses the orbit changing problems of the space-based pinpoint attack ground, and techniques related to pinpoint attack, as follows:1) To reach the aim of the space-based pinpoint attack ground, several separation modes are detailedly analyzed, together with their advantages and disadvantages. Based on orbital mechanics and the impacts of separation on-orbit, the ground attack coverage problems of space orbits are analyzed, while two types of pinpoint releasing orbit transfer modes - apogee single pulse and the general single pulse orbit transfer modes are discussed, and the orbit transfer windows are analyzed. Based on evolutionary algorithm, the orbit transfer optimization problems of the space-based pinpoint attack ground are detailedly discussed. Further more, examples of apogee single pulse and the general single pulse orbit transfer modes are calculated.2) Since the oblateness of the earth has certain impact on the process of the space-based pinpoint attack ground, while detailedly analyzed the impacts of the oblateness, this thesis researches on and demonstrated the guide approach that can eliminate the influence of oblateness using optimization theories based on simulation.This thesis mainly has a research on the related theories and techniques of the space-based pinpoint attack ground. There is a vanward research on space mass flow problems, while the research of some related techniques are emphasized particularly on some new approaches. The studies in this thesis will be extremely important to space transportation, space separation , space compensation, and the space-based pinpoint attack ground in the future.