摘要
针对基于法布里-珀罗干涉仪的大气风场探测系统,推导了进行风速、温度反演的理论模型并在理论上进行了模拟验证。利用光学设计软件Zemax完成了法布里-珀罗干涉仪系统结构的仿真。通过设定不同波长入射系统,得到对应干涉条纹,利用最小二乘拟合圆方法从条纹峰值移动距离可反演出风速,与理论值进行比对,得到风速仿真误差小于4.2%。针对温度探测理论建立了合理的光源光谱文件,给出理想仿真干涉圆环,进行数据分析完成温度反演,计算出温度的仿真误差小于7.5%。结果表明,仿真模型、反演理论、数据分析和处理方法是可行的。
To counter atmospheric wind-field detection system based on Fabry-Perot interferometer the model of retrieval of wind velocity and temperature is deduced.Using Zemax software,the configuration of the system is numerical simulated,and interference fringes corresponding to two wavelengths are produced.Combined with the method of the least squares fitting a round image,data processing and the wind velocity inversion are completed.And by the comparison of the theoretical values,the accuracy of fringe movement is obtained,and wind velocity error is less than 4.2%.According to temperature detection theory,the reasonable specturm files are built and ideal simulated interference rings are obtained.Atmospheric temperture can be retrieved,and the error is less than 7.5%.Results show that simulation model,retrieval theory,data analysis and processing method are feasible.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2011年第10期1-6,共6页
Acta Optica Sinica
基金
国家973计划(2009CB426302)
教育部高等学校博士学科点基金(20106118120009)
陕西省自然科学基金(2010JQ5004)资助课题
关键词
大气光学
风速温度反演
系统设计仿真
法布里-珀罗干涉仪
条纹成像
atmospheric optics
velocity and temperature retrieval
system design and simulation
Fabry-Perot interferometer
fring imaging
