摘要
针对脉冲激光周向探测平面目标回波特性的问题,设计了脉冲激光周向探测系统。基于传统激光雷达方程,采用单站式激光雷达散射截面方程,推导了混有时空分布的回波功率的一般方程。基于倾斜平面目标的表面特性,推导了扩展目标和非扩展目标的回波功率方程。通过仿真分析了脉冲展宽特性、朗伯体与非朗伯体平面的目标回波特性。对周向探测系统进行加工以及回波实验,实验结果表明,数值计算回波与粗糙平板实际回波波形一致,为脉冲激光周向探测系统测距提供了理论依据。
Aiming at the echo characteristics of the plane target of the pulsed laser circular-viewing detection, the pulsed laser circular-viewing detection system is designed. Based on the traditional laser radar equation, a single station laser radar scattering cross section equation is used to derive the general equation of the echo power with spatial and temporal distribution. Based on surface characteristics of the tilted plane target, the echo power equations of the extended and the non-extended target are derived. The pulse broadening characteristics and the echo characteristics of Lambertian plane and non-Lambertian plane are simulated. The circular-viewing detection system is manufactured and tested, and the experimental results show that the echo waveform is consistent with the actual echo waveform of the rough flat plate. It provides a theoretical basis for the measurement of the pulsed laser circularviewing detection system.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2017年第4期217-224,共8页
Acta Optica Sinica
基金
武器装备预先研究项目(51305020104)
关键词
激光器
脉冲激光
回波特性
散射特性
平面目标
周向探测
lasers
pulsed laser
echo characteristic
scattering characteristic
plane target
circular-viewing detection
