Wanfeng Ji

Unmanned equipment and systems, represented by Unmanned Aerial Vehicles (UAVs) and Unmanned Surface Vehicles (USVs), are a promising area of research. Based on intelligence and informatics, they can efficiently transmit tactical battlefield information and provide real-time network access for new equipment updates, which is an effective way to navigate complex environments and enhance synergy capabilities. Unmanned aerial vehicles have maneuverability advantages. Unmanned surface equipment, represented by unmanned ships, has advantages in terms of carrying capacity and long-term self-sustainment. Collaborative control and planning of multiple unmanned platforms is a popular topic in intelligent unmanned system control research. In the context of informationization, network, and system confrontation, the coordination of multiple unmanned platforms is used to enable information and resource sharing throughout the entire unmanned system. This maximizes the utilization of their respective advantages and improves the operational effectiveness of the entire system, which has significant theoretical and practical value. Based on years of research, this paper studies the key theories and technical problems of cooperative path planning and formation control for multiple unmanned platforms, using UAVs and USVs as examples, and provides corresponding control algorithms and simulations.

This book covers various fields relevant to navigation, including Earth's magnetic field, gravity field, topography, celestial polarization field, electrostatic field, and relativistic celestial field effects. It introduces the principles and applications of navigation positioning using various natural field navigation and terrain-assisted methods, including gravity field navigation positioning, geomagnetic field navigation positioning, terrain-assisted navigation positioning, polarization field navigation positioning, electrostatic field navigation positioning, and relativistic effect verification. This book comprehensively introduces the algorithm principles and engineering implementation approaches, providing basic theoretical support for precision navigation positioning and deep space exploration. Based on the principles of gravity, geomagnetic, and terrain-assisted navigation positioning, corresponding to the universal gravitational force and Earth's rotation in Newtonian mechanics, it combines polarization field navigation positioning with the energy field effect of solar incident light waves, as well as electrostatic field navigation positioning with relativistic effect verification. This forms a relatively complete theoretical technical system and abstracts the mathematical essence of each link in the geomagnetic, gravity, and terrain navigation positioning systems. Taking mechanism exploration and algorithm implementation as the basic approach, it has confirmed the theoretical correctness and practical feasibility of natural field navigation positioning through verification with actual measurement data. This book is mainly targeted at professionals, researchers, students, and readers interested in deep space, deep Earth, deep sea, and polar exploration, as well as those working in the field of navigation positioning. It is of reference value in deep space, deep Earth, and deep sea exploration.