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Integrated Missile Design
Published in Rafael T. Yanushevsky, Modern Missile Guidance, 2019
The first problem faced by the designer of a missile guidance system is translating the missile tactical problem into specifications for the guidance system design. After that the mathematical model, i.e., the mathematical expressions, which govern its behavior, is developed. The design process starts usually with simplified equations of missile motion, aerodynamic, kinematic, and inertial coupling being ignored. Then cross-coupling between the subsystems is taken into consideration, and the three-dimensional aerodynamic model is needed for the simulation of 6-DOF. As an aid to the process of design, simulation of the system accompanies the design process. As the design progresses, complete simulation may give way to partial simulation by substituting some of the completed elements of the system (parts constituting actual “hardware”) for the mathematical expressions previously employed. When the guidance system has been developed, the behavior of the equipment is proved by flight tests. Data collected during these tests provide the designer of the guidance system with additional information to conclude whether the design system meets the functional requirements formulated at the beginning of the design process or the system needs some corrections, or maybe, in the worst case, it should be redesigned.
Significant Role of IoT in Agriculture for Smart Farming
Published in Abid Hussain, Garima Tyagi, Sheng-Lung Peng, IoT and AI Technologies for Sustainable Living, 2023
Rohit Maheshwari, Mohnish Vidyarthi, Parth Vidyarthi
Guidance system is used to track a vehicle with precision of 30 cm or less. These types of systems have replaced conventional spraying and seeding devise. And autonomous types of vehicles are currently under construction, which might change the future course of action.
Route planning for autonomous vessels based on improved artificial fish swarm algorithm
Published in Ships and Offshore Structures, 2023
Liang Zhao, Fang Wang, Yong Bai
The configuration of the GNC system in the model ship is illustrated in Figure 9. It contains three basic systems: the guidance system, navigation system and control system. The mission requirement and information about the environment are first sent to the guidance system to generate a map. Then, IAFSA will compute a set of waypoints which is a collision-free route for the mission. According to the waypoints and vessel dynamics, the guidance system calculates the reference trajectory and velocity. The reference trajectory is further received by the control system, which includes a PID controller and a thrust allocation system to generate the control commands. The navigation system employs a GPS and gyroscopic compass to measure the position and velocity information. To improve the accuracy of the signal, an extended Kalman filter is designed to refine the signal collected by the sensors.