The Research On The Laser Interference Decoy Control System

Laser-guided control system is the core technology in the laser-guided technology. Because of its high anti-interference ability, low cost advantage, laser-guided technology is gradually used in missiles, artillery shells, bombs and other military weapons. At the same time, laser-guided control technolo-gy has also been widely used in the modern urban construction, field engine-eering planning, large-scale mechanical docking orientation, deformat-ion monitoring of large buildings and so on.This paper designs and develops the guidance control system on the condition of laser jamming decoy, focusing on laboratory research experime-nts by laser-guided principles. This paper studys the process of signal acqu- sition, searching, tracking stationary targets as well as decoy process on the condition of laser jamming decoy.Firstly, studys the receiving circuits of low frequency laser signal, and the frequency of laser signal is 200Hz, analyes the working principle and characteristic of the laser signal receiver, and on this basis designs some circuits to enlarge and broaden the received optical signals, then transfor analog signal to digital signal. The treated laser signals are received and displayed on the computer. Via the received datas the computer will set control instructions to make the step motor move.The computer deals with the received signals, gets the position of laser emission points, and set scaning, searching, tracking functions through VB interface. The interface design makes presentation more intuitive, the process of laser decoy can also be obviously observed through the interface. In order to achieve the object of tracking process in field, the paper designs the system of PC controling the stepper motors. laser signal receiver is fixed in the stepper motors, signals are delt within a short period and then the stepper moters are driven to do the corresponding moves. and which process will achieves the tracking performance. Finally, the paper sets a summary of the work and further research prospects.