This paper analyzes the evolution of air attack targets and combat modes， the characteristics of new air attack targets， and the research status of similar ammunition in China and abroad. On this basis， it proposes that the small-caliber anti-aircraft gun ammunition will develop towards high-efficiency composite damage of armor piercing ammunition， great penetration capability， ammunition “proximity” attack capability， high-efficiency damage capability of fragment warhead， precision hit capability， high security， electromagnetic gun ammunition， and new concept ammunition of countersunk ammunition. Meanwhile， some key technical points in the development are analyzed， which provides references for the demonstration and research on small-caliber anti-aircraft gun ammunition， helps build an efficient small-caliber anti-aircraft ammunition system under the information warfare environment， and improves the operational efficiency of anti-aircraft guns.

Anti-radiation missile (ARM) is the archenemy of radar on the current battlefield,while using active decoy against ARM is a comparative convenient and effective method.The operating principle of the passive radar seeker (PRS) and decoy is studied.The timing control algorithm is discussed based on the three-point unbeamed decoy system.Simulation experiment verifies its validity.

To improve the impact angle and strike accuracy for anti-tank missiles of helicopter,The terminal impact angle constraint for missile with relative motion relationship between the missile and the target is given based on the relative motion and collision triangle relationship between the missile and the target.The relational expression of the variable bias proportional guidance law based on the impact angle constraint is derived.Through comparison with ballistic shaping guidance law and segmented variable gain proportional guidance law,this guidance law has high guidance accuracy with less overload change and control energy consumption.The research on this guidance law shows that it can meet different simulation conditions and has the higher impact angle accuracy.The research of this guidance law shows that it can meet different simulation conditions and has the higher impact angle accuracy.With the increase of the impact angle constraint,the changes of missile overload and control energy consumption intensify.The influence of the guidance law on the trajectory is further discussed.The analysis of bias term and the angular velocity changes of line-of-sight angle between missile and target shows that the guidance command is initially dominated by the bias term,when the trajectory climbs,and subsequently transforms into proportional term,which completes the impact angle constraint and also ensures the convergence of the trajectory.

Based on the locations of communication command aircraft, jammer and radar, the interference effect evaluation indicators are designed. Considering the benefit of each jammer, the final objective function is determined and the jamming resource allocation decision is solved with the game theory. Feasibility and existence of the Nash equilibrium (NE) in this game are proved. An iterative algorithm of jamming strategy selection is designed and jamming resource allocation decision is solved. Simulation results show that the iterative algorithm of jamming strategy selection indicator proposed is a good solution to the radar jamming resource allocation problem and has certain significance for actual operational command.

To build an effective model for effectiveness evaluation is the premise to study the anti-stealth detection of bistatic guidance radars. The detection coverage coefficient and the guaranteed precision coefficient are defined. The detectable area and the guaranteed precision area are calculated by the mesh generation method. The simulation results show that the anti-stealth efficiency coefficient is higher when only considering detection or tracking and the efficiency evaluation data are reliable when considering both of them. The rationality and effectiveness of the model are validated.