It was interpreted and testified that the moving velocity of the lead point tracked by gun-target line has a limited value in the case of arbitrarily high velocity of approaching target;the region,in which the gun can track and shoot arbitrary velocity target,exists;the shooting time not restricted by the target velocity exists in the mentioned above region.

The shooting delay time as result of the equipped shooting gate is studied for the weapon system with shooting gate.

Firstly, we propose a distributed auto-negotiation slot allocation scheme whichaccomplishes the slot allocation in a distributed and parallel way by means of contentionaccess ideas used in CSMA, what\'s more important, without local topology information andpacket exchanging.