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Beijing, China

Chen L.,No 63961 Unit | Chen L.,Beijing Institute of Technology | Wang Z.,No 63961 Unit | Wu Z.,No 63961 Unit | Wang B.,Beijing Institute of Technology
Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | Year: 2014

In antiaircraft weapon-target assignment, damage time could be delayed under maximum damage principle with firepower resources constraint, when firepower resources are sufficient. To cope with the disadvantage, a new weapon-target assignment model under earlier damage is proposed. In the new model targets with high target threat are firstly assigned to a few weapons, which can damage these targets as early as possible, and the damage probability is greater than the preset threshold. That is to say, by using flying time from target to weapon, the damage time is considered except damage probability and firepower resources, and serious and earlier damage with fewer firepower resources can be achieved at the same time. Based on the new model, a mixed chaos and discrete particle swarm optimization (CDPSO) algorithm is presented to solve the weapon-target assignment problem. The proposed algorithm improves the seeking ability for the global optimal solution, so that the local extremum is avoided. Simulation results show the advantage of the new weapon-target assignment model, as well as the effectiveness and the superiority of the proposed mixed optimization algorithm. Source

Xu W.-X.,No 63961 Unit | Li Z.,No 63961 Unit | Zhang G.-Y.,No 63961 Unit
Binggong Xuebao/Acta Armamentarii | Year: 2011

In order to research the impact of maneuver target on guidance accuracy, the target maneuvering statistical characteristics described as differential of target acceleration is colored-noise-sequence, and related system state model is established. This method has larger range of target maneuver pattern than statistics of white-noise-sequence. The system state model is solved by Kalman filtering algorithm to realize the closement of optimal guidance loop. Simulation result indicates that the hit precision has been improved greatly when engaged for high maneuver targets such as lower-flying helicopter without changing the missile hardware. The paper provides design reference for optimal guidance of indirect aiming missile. Source

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