In recent years, with the rapid development of autonomous control technology and mission loads, more and more Unmanned Aerial Vehicles (UAVs) have mission autonomy capability. During the execution of the mission, the safety risk of the landing phase is the greatest, and poor navigation and positioni...

Considering the periodic oscillation in reentry glide of Lifting Hypersonic Vehicle (LHV), a feedback correction method based on fuzzy logic and fuzzy control is proposed to reduce the oscillation and keep reentry glide trajectory smooth. First, the longitudinal guidance is developed based on the pr...

Vibration measurement is one of the methods of state detection and fault diagnosis. In view of the loading effect in the current contact vibration measurement method and other problems, this paper studies the three-dimensional vibration measurement method based on machine vision. First, based on the...

The attitude stability of the underwater-launched small rotor UAV directly affects the result of the entire submarine launch task. Aimed at the problems that the rotor UAV's attitude is difficult to adjust quickly during the launching period, and the initial launch attitude is easily interfered by o...

Aimed at the path planning problem of spacecraft formation reconfiguration, an Adaptive Pigeon-Inspired Optimization algorithm based on Chaos initialization and Gaussian disturbance (CGAPIO)is proposed.In order to make the initial value of the pigeons more diverse and uniform, the Tent Map chaotic m...

Multicopter are often used in complex and variable scenarios such as post-earthquake search and rescue, geological exploration, etc. Considering their endurance and environmental characteristics, optimizing the flight trajectory of multicopter to complete tasks better and faster has become a key iss...

The T-S fuzzy fault tree model is applied to the performance analysis of the multi-state navigation system, considering that complex multi-state system has different performance reliability in different fault states. The T-S fuzzy fault tree is used to represent the performance variables of the syst...

An adaptive neural network dynamic surface control method is proposed to resolve the input saturation problem of aircraft high- g maneuver flight. The Radial Basis Function (RBF) neural networks are utilized to approximate the unknown uncertain parts of aircraft model. The hyperbolic tangent functio...

A novel guidance law design method based on impact point predictions is proposed in this paper. A stochastic maneuvering model and the adaptive Kalman filter are used to estimate the projectile states, and predicted impact points are solved analytically. Guidance commands are generated based on erro...

The probe-and-drogue Aerial Autonomous Refueling (AAR) technology has been widely studied because it requires little modification of refueling equipment and can be applied to a variety of refueling processes. However, there are few researches on the whole flight control process from take-off to dise...

This paper studies the time-varying formation H_∞ control problem for Air Unmanned Swarm System (AUSS) under directed communication topology, corrupted by communication delay and external disturbances. First, based on the expected formation configuration information of swarm system, the real-time sta...

Considering the underactuated problem of flight vehicles with single moving mass roll control system, this paper proposes a controller based on the idea of active disturbance rejection, which achieves the command roll angle tracking and sideslip angle stabilization control only with the laterally co...

Unmanned aircraft is an important weapon of carrier-aircraft system. Autonomous taxiing of aircraft is significant for the efficiency of deck operation. The trajectory control problem of unmanned aircraft taxiing on deck of an aircraft carrier is studied in this paper. First, the task of aircraft ta...

Unmanned Aerial Vehicle (UAV) cluster operation is an important mode of intelligent warfare in the future. In order to give full play of the overall operational advantages of UAV cluster, a mathematical model is constructed to solve the Weapon-Target Assignment (WTA) problem in UAV cluster attacks a...

Aimed at the problem that the current low-speed positioning system of unmanned vehicle extremely relies on the Global Navigation Satellite System (GNSS), which has low positioning accuracy, large drift error and serious environmental impact, a low-cost and high-precision positioning and mapping meth...

To solve the prescribed-time optimal rendezvous problem for multi-UAV systems, a distributed optimization framework is established based on time-domain transformation technique. By introducing a specific time-domain transformation, the prescribed-time decision problem in original time-domain is tran...

Group attitude coordinated control of multi-spacecraft on the basis of distributed event-triggered mechanism is investigated. The multi-spacecraft system contains several subgroups, and the information exchange among spacecraft is regarded as undirected topology. The attitude of spacecraft is descri...

As the main symbolic representation method widely used in time series data mining, the Symbolic Aggregation Approximation (SAX) uses the mean value of segments as the symbolic representation. Since it is impossible to distinguish different time series that have different trends but the same mean val...

To overcome the problem that the asynchronous event stream generated by the event camera is hard to observe, utilize and there is a lot of noise, we introduce an improved visualization and noise reduction algorithm for the event camera. Because the event stream reacts to the object movement, the pro...

Under traditional Sun-pointing guidance method constrained by the deviation of Earth-pointing, the expected attitude of the satellite would rapidly flip when the angle between the satellite-Sun line and the satellite-Earth line reaches the extreme value, leading to the large peak power consumption a...

In order to ensure that the mobile robot can reach the target position without collisions, this paper proposes a real-time obstacle avoidance algorithm that integrates the pigeon-inspired optimization into the Circle Sector Expansion plus (CSE+) method. This algorithm includes a judgment mechanism t...

In the underwater communication system, it is one-sided to describe the importance of each node in the underwater communication system only by considering the strength of the node. In order to better evaluate the importance of the node in the underwater communication system, this paper proposes the ...

The position and attitude control of Quadrotor Unmanned Aerial Vehicle (QUAV) determines its maneuverability. First, to overcome the mobility defect of the under-actuated system, the dynamic model of bi-directional-motor-driven QUAV based on quaternion is presented, including the analysis on omnidir...

Aimed at the attitude system of liquid-filled spacecraft with large-amplitude liquid sloshing and limited communication resources, a control strategy combining adaptive sliding mode control and event-triggering mechanism is proposed. First, sliding mode variable structure control is used to weaken t...

Inspired by the paired flight mechanism of jackdaws, a paired interactive swarm model is proposed and applied to the Unmanned Aerial Vehicle (UAV) swarm control system. Firstly, by imitating the paired interaction between jackdaw individuals, the neighbor selection mechanism is designed in pairing i...

For the manned lunar return spacecraft reentry problem, an analytical predictor-corrector guidance method for short range reentry is proposed. Firstly, the concept of glide reentryis introduced, which has been studied in the trajectory design of high lift-to-drag ratio vehicle.In order to pre-design...

To solve formation path planning problem of the Unmanned Helicopter (UH), a path planning algorithm is proposed based on improved Artificial Fish Swarm Algorithm (AFSA). An adaptive vision model of artificial fish for artificial fish swarm algorithm was put forward from two aspects of neighborhood l...

For the longitudinal movement of fixed-wing aircraft in perching maneuvers, the perching trajectory control design and the optimization method of attraction domains are investigated. First, according to the perching dynamics model and the constraints of states during the perching, the nominal trajec...

UAV swarm rounding up is an important mission mode of intelligent UAV swarm operation. Most of the existing swarm rounding up methods are based on the known environment, and the strategy often fails in the face of unknown mission environment. To solve this problem, a developmental model based on sit...