As a typical representative of defense acquisition,equipment acquisition usually involves large amount of processes in execution.Meanwhile,due to the advancement requirements of the equipment,its realization must rely on the effective integration of advanced scientific and technological achievements in many fields.Therefore,the impacts of technological maturity and manufacturing maturity on acquisition programs must be considered.For ensuring the success of acquisitions and managing the implementation effectively,the department of defense has proposed defense acquisition system based on system engineering methodologies,which is one of the three decision support systems utilized in defense acquisition.By dividing the entire life cycle into several phases,an acquisition program goes through solution analysis,technical maturity,engineering and manufacturing development,production and deployment,operations and support,and retire processing phases,with the technological and manufacturing maturity improves simultaneously.By setting the milestone decision points between acquisition phases,the achievements of current phase and the goals of the subsequent phase can be evaluated.In this manner,the acquisition execution and phase transition can be supervised effectively and the program risk can be reduced significantly,which can finally realize the capability requirements described in joint capabilities integration and development system as an equipment.As a result,this work will focus on the defense acquisition system,to illustrate the acquisition phases and their corresponding tasks systematically,and finally provide a sufficient support for the related work.

With the development of the artificial intelligent technology,it has become the focus of many countries due to its impressive capabilities and great potential in the future.As a result,the artificial intelligent technology has been included in the national development strategy of many countries.Based on such technologies,various intelligent weapon systems have been developed,and some of them have been put into the practice.Therefore,the state of art of this area in foreign countries is summarized in this work,and the characteristics of diverse intelligent weapon systems are discussed as well.Finally,the future developing trends of the intelligent missile weapon system are concluded at the end.

With the development of artificial intelligence, control and communication technology,Unmanned systems have been developing.In the military field,the unmanned combat system will profoundly affect the future development of the war.The development and main characteristics of foreign unmanned combat system are studied,and the key technology of intelligent unmanned combat systems are analyzed.The development conception of unmanned combat system in the future is put forward,and the key technical directions are summarized,which can provide reference for the development of intelligent unmanned air denfense system.