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Research on Detecting Method of Space-time Conflict in Multiple UCAVs Cooperative Combat Missions

Author: ChenWei
Tutor: ZhuHuaYong
School: National University of Defense Science and Technology
Course: Control Science and Engineering
Keywords: Unmanned combat aircraft Airspace Planning Time constraints Timing Planning Network Collision detection
CLC: TP391.9
Type: Master's thesis
Year: 2007
Downloads: 149
Quote: 1
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Abstract


In recent years, unmanned combat aircraft (Unmanned Combat Aerial Vehicle, UCAV) by various countries, and rapid development worldwide. Under conditions of modern warfare combat environment rapidly changing, increasingly complex combat missions, single frame the UCAV can play the combat effectiveness of extremely limited combat missions aircraft the UCAV mutual synergy to complete. Multi-UCAV Cooperative combat task space-time collision detection is an important part of the multi-UCAV Cooperative Engagement research, and of great significance to ensure the task is successfully completed. In-depth analysis of the multi-UCAV cooperative combat missions of the space-time conflict, time and space conflict detection algorithm. First, the establishment of a descriptive model of multi-UCAV cooperative combat missions. Given the main content and the general form of the multi-UCAV cooperative combat mission plan, phase characteristics of the air-to-ground strike missions, thereby establishing a task description model based on flight activity. Constraint relations between various multi-UCAV cooperative combat missions, and boils down to logical constraints, time constraints and resource constraints of three. Second, in an airspace conflict detection method based on airspace planning model. Airspace conflict detection problem is decomposed into two parts, preprocessing and airspace conflict detection algorithm based on the the Reich model of improved the airspace occupies model (Airspace Occupancy Model, AOM) and UCAV probability encounter model (ProbabilisticUCAV Encounter Model PUEM), airspace conflicts detection algorithm, a numerical example is simulation. The simulation results show that the algorithm can effectively detect the different levels of airspace conflict. Finally, on the basis of the timing planning network (Temporal Planning Networks, TPN) task plan a time constraint conflict detection method. Representation of the time constraint network (Temporal ConstraintNetworks, TCN) describes the qualitative and quantitative requirements of tasks on time, and then add a variety of flight conditions of the implementation of the activities to improve the TPN model, and improving the TPN model constraint violation points constraints for the direct time conflict and state constraints conflict. Conflict triangular CSP algorithm is designed for direct time constraints, this conflict detection algorithm is proposed based on time constraints. Want to air-to-ground strike missions as input, time constraints conflict algorithm simulation, simulation results show that the algorithm can effectively detect multi-UCAV cooperative combat mission time constraints conflict.

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