Through analyzing the radiant point orientation and attack process of the attacker,this paper mainly studies the first attack probability of the level bombing attacker.

Determining the accessing zone of air to ground weapons,first attack probability and maximun discovery probability are discussed.

We have a hypothesis that the attack has already occurred,then we compute the attack probability of the node,after that generate the danger level to rank the nodes to provide a vivid and easy reading graph.

Based on the research on the terminal guidance acquisition probability model and carrier aircraft survival probability model for long-range air-to-air missiles,this paper established the computational model of attack-defense success probability,and gave an example of verification regarding F-16 as the attack target,and then analyzed the factors that affect the atta.

First-round hitting probability model of Sub-minition projectile firing is established,the first-round hitting probability met is educed.

The first-event error probability of STC is evaluated, and a new hybrid design criterion of space-time code for time-varying fading channels is proposed based on that probability.