Semi-active Laser Last Paragraph Of The Trajectory Correction Control Technology

In this dissertation, the control technique of terminal trajectory correction projectile which adopts laser semi-active homing guidance technique in the correction phase has been researched; an initial design of the hardware and software algorithm related also has been done.Based on the target detection principle of four-quadrant photo-detector with laser guidance technology, the computation process of target bearing and tracking deflection angle are analyzed using the output of four-quadrant photo-detector, and the target detection model is found on the principle of laser semi-active homing guidance.The affects of control parameters setting and basic parameters of impulse engine on the correction ability are analyzed in the 6-DOF model of the projectile with correction impulse force. The analysis result is useful to the impulse engine design and the control parameters setting.The control technique of terminal trajectory correction projectile has been studied, and a simple control method of impulse engines based on the previous studies is proposed, this control method takes full advantage of the resource of the controller, which makes it easy to carry out the impulse control.Selecting DSP TMS320LF2407 as master controller to design the integrated system of the hardware and software algorithm related. The core of this part includes the quadrant photo-detector's signal processing circuit and ADC circuit design, the data collection circuit design based on SPI, the impulse engine ignition circuit design, and the software related above. This part is a pilot study of the impulse simple control system.