Simulation Of Anti-aircraft Gun Fire Control Radar

The fire control radar of anti-aircraft gun plays an important role in modern air defence war. The operator's skill level of fire control radar is immediately related to selves'safety. So operator needs lots of training. In addition, Inventing an assistant diagnosis instrument in equipment maintenance is very helpful to enhance the maintenance capacity, It can also prolongs the weapon's lifetime and improve weapon's efficiency. The paper presents some problems of the anti-aircraft gun systems in the training and maintenance. Aiming at solving these problems. It proposes a scheme to simulate the function of the fire control radar. The simulator not only can be used in personnel training and teaching. It can also simulate fire control radar to send simulated target data to drive fire gun when inspecting the servo system of fire gun. The main content in the paper is:First, we study several kinds of flying track and build up their mathematics models. Use cubic spline curve to connect two different forms of movement. And then the ideal simulated flying target data are processed further to get more actual data. Second, we use visual programming language Delphi to simulate the fire control radar terminal PPI. That make most displayed elements on real radar monitor can be simulated on the computer screen. Using multithreading to realize displaying multiple targets simultaneously. Operator can randomly select different target to acquire flying target data. Third, according to the transferring contents between fire control radar and fire gun. We designed the communication protocol between PC and microcomputer, microcomputer receives simulated flying target data from PC, through digital synchro converter, the digital signal are converted to three phase analog voltage, the voltage are used to drive fire gun to rotate. In addition, PC can also send commands to control fire gun's alarm switch and electrical fire switch.