摘要
光学大气数据系统较传统大气数据系统在飞行器上应用具有许多显著优势。介绍了基于米散射的激光测速系统基本工作原理,重点讨论了系统中信号混频和微弱信号提取等关键技术。产品样机在实验室的测试结果表明测速精度可达0.75%。
Optical air data system（OADS） has many prominent advantages comparing with traditional air data system（ADS） in the application of aircraft.The fundamental principce of laser speed detection system which is found on Mie scattering is introduced.The key technologies of the system such as signal mixing and weak signal extraction and so on,are discussed emphatically.At last,the result of test prototype in the lab shows that the accuracy can reach 0.75%.
出处
《测控技术》
CSCD
2015年第1期32-34,共3页
Measurement & Control Technology
基金
中航工业技术创新基金资助项目(2012D16132)
关键词
大气数据系统
激光测速
混频效率
微弱信号
air data system
laser speed detection
mixing efficiency
weak signal
