UAV data links variable structure against attacks guidance law research

In the course of UCAV approach to the enemy plane, tradition proportion guidance law is easy to let our plane into the scopes of target fire attack. And the beast coefficient of tradition proportion lead law is related to the target and UCAV's distance. If the target moves with high acceleration or is disturbed, the attack result will become bad. For resolving these questions, a method was given based on data link variable structure adaptive opposed guidance law and make a simulation was made. The simulation result shows that the method not only evades guidance our plane into target fire attack scope, but also reduces the overload of the UCAV, improves guiding precision, velocity and robust, restricts the line of sight angle's speed.