Correction Of Air-to-air Missile Radio-channel Digital Simulation

The attack process of active radar Air-to-air Missile (AAM) is divided into three phases: launch phase, midcourse phase and terminal phase. Its midcourse usually adopts compound guidance-inertial navigation system +radio amendatory channel. The radio amendatory channel controls missiles by using radio telecontrol. Its characteristic is that instructions are sent to the missile from another place .The instructions come from plane in this thesis. The wireless equipments receive and decode various instructions, and then the fin is commanded to turn by the autopilot, thus the purpose of control the missiles is achieved. Because the plane and the missile usually need to do different motions, the data link that receives instructions will be obstructed. In the study process of some kinds of AAM, the simulations of radio amendatory channel have to be carried out in different trajectories in order to validate the capability of radio amendatory channel and calculate the maximum distance that missile can overshoot. The work in this thesis is based on the project background mentioned above.Using Simulink, the flat made up of the simulation models of missile, plane and target is set up in this thesis. The position information of missile, plane and target is exported to the model of antenna pattern, which can calculate the received power of missile. The received power is sent to the received gain port of radio amendatory channel, and then the data link is completed in this flat. Finally, the results of the digital simulation about radio amendatory channel are given in different trajectories.The main innovations in the thesis are as follows:The flat made up of missile, plane and target is established, and then the data link is established in this flat. Two models are combined. The capability of radio amendatory channel can be verified by using this model. The model of radio amendatory channel can be referenced in project practice. In a word, this thesis is important when solving the questions in project practice.