Compared with traditional weapons, high-speed weapons have the advantages of high speed, high precision, and strong maneuverability. In future wars, high-speed weapons will occupy an important position. While developing offensive highspeed weapons, countries are also considering how to deal with the threat of high-speed weapons. Due to their excellent strike effect and penetration performance, high-speed weapons can effectively break through the existing defense systems of various countries. Military groups represented by the United States and Russia are accelerating the construction of highspeed weapons defense systems. This paper first describes the development status of high-speed weapons, and summarizes the situation and development trend of the defense system construction by various military powers. Then combined with the relevant characteristics of high-speed weapons, from the aspects of early warning and detection, command and control, and interception weapons. At the same time, this paper sorts out the key problems faced by the existing defense system. Finally, some enlightenments and thoughts are put forward on building a defense system under the threat of highspeed weapons.
High speed maneuverable aerial vehicle has the characteristics of strong maneuverability, fast flight speed and long combat distance. It is difficult for the existing defense system to track its flight trajectory effectively. The filtering algorithm is the key technology to improve the accuracy and reliability of maneuvering target trajectory tracking. A single observer can’t accurately track a target over long distances. The single nonlinear filtering algorithm has a large error in tracking the motion state information of the target, such as angular velocity and velocity. In this paper, a composite particle filter method is proposed. Firstly, a multi-observer cooperative tracking method is adopted to solve the problem of low tracking accuracy of a single observer for high maneuvering target in near space. Secondly, an interactive multi-model quadratic particle filtering method is used to accurately fit the motion state information of high maneuvering target in near space. The trajectory tracking method of composite particle filter proposed in this paper achieves accurate and stable tracking of the target flight state. In the simulation environment of this paper, the angular velocity tracking error and velocity tracking error are reduced by at least 25% and 20%.
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