摘要
水中湍流是影响水下光学系统性能的重要的潜在因素。用波前检测的方法对水中湍流对激光束传输的影响进行实验研究,测量了实验条件下水中湍流产生的波前畸变的大小,对波前畸变进行了Zernike分析,还对波前补偿自适应系统在水下成像的应用进行了探索。结果表明:水中湍流引起的激光束波前的起伏降低了图像的分辨率,自适应光学系统在其校正范围内能有效地校正畸变,提高图像质量。
Underwater-turbulence may have an impact on the performance of underwater imaging system.The impact of underwater-turbulence on laser beam propagation is studied with wave-front test.The distortion introduced by underwater-turbulence is measured and analyzed using the Zernike polynomial.The adaptive optical system with wave-front compensation is investigated for underwater imaging.The result shows that underwater-turbulence reduces the resolution of underwater imaging system.Calibration experiment is carried out to show that adaptive optical system can improve the quality of underwater images effectively.
出处
《应用光学》
CAS
CSCD
北大核心
2010年第5期690-694,共5页
Journal of Applied Optics
关键词
水下成像
自适应光学
湍流
波前校正
underwater imaging
adaptive optics
turbulence
wave-front calibration