无线激光打靶器系统建模与设计

无线激光打靶器利用对信号的编码和解码来实现靶与枪的分离．即采用数字脉冲编码方式对控制系统信号进行调制，将信息加载在光脉冲序列上发射出去．光信号经过大气和光纤的传播，由光电二极管探测阵列利用扫描和解码过程将其接收，并转换成电信号，再经过放大、整形后送到单片机中进行处理．最后利用IC卡将处理过的数据传送到微机中进行计算、修正和模拟．此外，通过对大气衰减系数、放大器放大能力、光电二极管接收灵敏度等一些参数进行分析．建立了整个无线激光打靶器的光电系统数学模型．根据该光电系统数学模型，可清楚地知道各个参数对整个系统性能的影响．以及各个参数相互之间的关系，并可计算出在一定的条件下能够实现的射击距离为今后对整个系统的改进和优化提供了理论依据．

Modeling and Design of a New Laser Target Practice System

The paper introduces the basic principle of the laser target practice system, and specifically illustrates the whole design of device from hardware and software aspects. The system uses coding and decoding of information to realize the separation between the target and the gun. Namely, it uses digital pulse coding method to modulate the signal of control system, and send out a series of light pulses loaded with information. By the medium of air and polymer optical fiber, an array of photoelectric diodes convert optical signals received in scanning process and decoding process into electric signals. Amplified and adjusted, the electric signal is sent to Single Chip Microcomputer to judge and process. IC card is used to exchange the data between the target system and the computer where the data will be further processed. In addition, the paper analyzes such parameters as atmospheric attenuation coefficient, the amplified ability of amplifier and receiving sensibility of photoelectric diode to set up a mathematic model of the photoelectric system. By using it, we can know clearly the influences each parameter has on the entire system's performance, relationship among each other, and can calculate the shooing distance which is realized in some given conditions, thus providing a theoretical basis of farther improving and optimizing the entire system.