| Laser command guidance, being a kind or remote control guidance, works on the same principle as general command guidance. After a missile is launched, the guidance station will have been tracking the target and measuring the real-time missile aiming line errors. According to the errors and the selected guidance law, the guidance station will form some control commands and transmit them through the laser beam coding to the missile, and then guide the missile be in the line of sight to its intended target. Unlike other command guidance systems, the trajectory for laser command guidance is controlled with the information transmitted via not radio or wire but laser. Different from the laser riding guidance whose control commands are formed on board the missile, the control commands for laser command guidance are in the guidance station.This paper is focused on photoelectric detection system applied for laser command guidance, details as follows:Chapter One introduces the history, present condition and development trend of laser command guidance system, and the content and structure of this paper.Chapter Two introduces the key techniques of laser command guidance system, including (1) encoding, transmitting, receiving and decoding for laser commands; (2) zooms for laser command beam; (3) how to reduce the interference of missile motor plume and smoke plume on command transmission.Chapter Three introduces briefly the composition of laser transmitting command system, mainly including its use and performance.Chapter Four introduces the research on photoelectric detection for laser transmitting command system, including the design necessity, functions, composition, working principle and internal circuit of laser transmitter, and the parallelism of optical axis adjusting device.Chapter Five introduces a brief summary made in this paper for the further orientation in work. |
