摘要
针对应用APD电路的脉冲激光探测系统而言,现有的峰值提取方法只能检测线性区的不饱和波形,而无法检测非线性区的饱和波形,这导致系统的检测范围极其受限。因此,针对当前系统在非线性区无法检测的问题,建立了基于APD电路的线性与非线性统一响应模型,并依托响应模型研究出了波形积分法和非线性区能量反演模型,可用于检测非线性区饱和波形,并通过实验验证了模型对非线性区波形的理想反演拟合。实验结果表明:拟合值与实际值成1.001的线性关系,且波形积分法的最大相对误差仅为4.69%,而检测范围拓宽为峰值提取法的10.25倍,由此证明文中方法和模型可用于实现对非线性区脉冲激光的检测,其可应用于提高基于APD电路的脉冲激光探测系统的检测范围和检测能力。
For the pulse laser detection system using APD circuit,the existing peak extraction method could only detect the linear region of the unsaturated waveform,but not the nonlinear region of the saturated waveform,which made the detection range of the system extremely limited.Therefore,in view of the problem that the current system could not be detected in the nonlinear area,a linear and nonlinear unified response model based on APD circuit was established,and based on the response model,the waveform integration method and the nonlinear area energy inversion model were developed,which could be used to detect the saturated waveform in the nonlinear area,and the ideal inversion fitting of the model to the waveform in the nonlinear area was verified by experiments.The experimental results show that the fitting value had a linear relationship of 1.001 with the actual value,and the maximum relative error of the waveform integration method was only 4.69%,while the detection range was widened to 10.25 times of the peak extraction method,which proved that the method and the model could be used to detect the pulse laser in the non-linear area,and it could be applied to improve the detection range and detection ability of the pulse laser detection system based on APD circuit power.
作者
吴春红
张骏
彭晓钰
钱惟贤(指导)
Wu Chunhong;Zhang Jun;Peng Xiaoyu;Qian Weixian(Electronic and Optical Engineering,Nanjing Universityof Science&Technology,Nanjing 210000,China)
出处
《红外与激光工程》
EI
CSCD
北大核心
2020年第S01期110-116,共7页
Infrared and Laser Engineering
关键词
APD电路
波形积分法
能量反演模型
脉冲激光探测
APD circuit
waveform integration method
energy inversion model
pulse laser detection
作者简介
吴春红(1996-),女,硕士生,主要从事光电探测与处理等方面的研究工作。Email:980900164@qq.com;钱惟贤(1980-),男,教授,博士生导师,博士,主要从事目标检测等方面的研究工作。Email:developer_plus@163.com
