摘要
为了提高激光脉冲检测精度和命中率,研究了一种基于射频传输的激光同步检测系统。给出系统总体结构,详细介绍了激光散射计数器设计过程。通过基准信号相位鉴别技术与光域补偿技术完成对链路的相位补偿,以实现射频信号的稳定传输,给出射频传输原理和射频传输的关键技术。介绍了激光扫描模块设计过程,从激光光束宽和发散角两方面介绍激光光强分布特点,为激光同步检测提供依据。分析了激光同步检测模块硬件设计过程,依据CCD成像激光光强分布特点,通过图像采集卡对图像进行采集,经计算机分析处理,实现激光同步检测。实验结果表明,所研究系统检测精度和效率高。
In order to improve the precision and hit rate of laser pulse detection, a laser synchronization detection system based on radio frequency transmission was studied. The overall structure of the system is given, and the design process of the laser scattering counter is introduced in details. Through the reference signal phase discrimination tech- nique and the optical domain compensation technique, the phase compensation of the link is carried out to realize the stable transmission of the radio frequency signal, and the key technology of the radio frequency transmission principle and the radio frequency transmission is given. The design process of laser scanning module is introduced. The characteristics of laser light intensity distribution are introduced from two aspects of laser beam width and divergence angle, which provide basis for laser synchronous detection. The hardware design process of the laser synchronous detection module is analyzed. According to the characteristics of the CCD imaging laser light intensity distribution, the image acquisition is carried out by image acquisition card, and the laser synchronization detection is realized by computer analysis and processing. The experimental results show that the system has high detection accuracy and efficiency.
出处
《激光杂志》
北大核心
2017年第12期33-36,共4页
Laser Journal
基金
福建省教育厅科技项目(JAT160696)
关键词
射频
传输
激光
同步
检测
radio frequency
transmission
laser
synchronization
detection
