In order to make intrusion detection system become reality from passive detect to active defense, this paper presents an approach based on attack utility to recognize the attacker’s finally intention and forecast the next possible attack.

A quantitative evaluation technique of attack effect of computer network based on network entropy;

This paper proposes a data collection model of computer network attack effect evaluation based on mobile agent and proper network security index set from the study of the performance of networked information system.

What s more,for the precision,overload,and initial releasing conditions,two kinds of classic effective attack area are designed,and some significant conclusions are acquired for the concept study of the GB.

This paper mainly analyzes the effect characteristics of the position change of the projectile pressure center on the terminal guidance trajectory,and the conclusion that there are important influence on the capture field and effective attack area of terminal guidance trajectory is drawn if the position of projectile pressure center has some errors.

The definition of joint combat goal,joint combat intention and cooperative attack effectiveness,are proposed.