An improved unmanned aerial vehicle （UAV） low altitude penetration model based on safe flight space is presented to solve the problem of lack of combination with the characteristics of UAV after terrain preprocessing. A safe flight space is constructed to reduce terrain constraints and ensure the safe flight of UAV in low altitude penetration. The trajectory planning model is improved by combining with the characteristics of UAV to increase the stability of UAV flight process and the smoothness of planned trajectory. The particle swarm optimization （PSO） algorithm is used to simulate the two models before and after the improvement in complex elevation map to verify the rationality and effectiveness of the improved model.

With the dramatic increase in the style and number of naval aviation missions， the experience-based manual scheduling type of special support vehicle dispatching method will not only cause a waste of support resources， but also easily lead to delays in warplanes due to untimely dispatch of vehicles. To address the problem of dispatching special support vehicles at naval aviation station， a mathematical model is established with the objective of dispatching the least number of support vehicles and the shortest total vehicle travel distance under the constraints of time window and vehicle load. The model is solved by improving the initial population and coding method of genetic algorithm， and a simulation test is carried out with a multi-aircraft and high-volume flight protection task to obtain a special support vehicle dispatching scheme， which verifies the rationality of the model.

With the advances in reconnaissance and reconnaissance-strike integrated technology， the transparency of the battlefield in modern warfare is increasing. The survival of military targets faces serious threats， and camouflage protection is an important prerequisite to ensure the survival on the battlefield. The inception， emergence， development and maturing of camouflage technology applications are reviewed； summarizes the research status of certain camouflage technologies such as stealth， sheltering， disruptive pattern-making， and faking. The analysis suggests that future camouflage technologies may incorporate multispectral compatibility， intelligent adaptation， and integrated designs. The paper provides important and valuable references to the R&D of military target camouflage technologies.