期刊文献+

参考光干涉提取复振幅的散斑统计函数的实验研究 被引量:1

Experimental studies on the statistical functions of speckle fields based on the extraction of the complex amplitudes by use of interference beam
原文传递
导出
摘要 由散斑场和参考光的干涉图样提取散斑场复振幅、相位和强度的数值分布,并对其统计特性进行实验研究,消除了散斑场强度统计函数特别是概率密度函数的传统测量方法中噪声引起的偏差,并实现了散斑场复振幅和相位统计特性的实验研究.通过对不同散射角处散斑场的研究发现随着散射角度的增大散斑颗粒逐渐呈现出横向展宽的现象,且其平均宽度表现为各向异性,但是其概率密度函数并没有发生变化,与小角度情况一样属于圆形高斯散斑场. Using the interference patterns of speckle fields and the reference beam, we extract digitally the complex amplitudes, phases and intensities of speckles fields and then study experimentally their properties. The influences of noise on the measurement of statistical functions, especially on that of the probability density function, appearing in the conventional method is satisfactorily eliminated. The experimental studies of the statistical properties of the complex amplitude and the phases of the speckle f...
出处 《物理学报》 SCIE EI CAS CSCD 北大核心 2009年第11期7654-7661,共8页 Acta Physica Sinica
基金 国家重点基础研究发展计划(973)项目(批准号:2006CB806003) 国家自然科学基金(批准号:10674085 10874105) 山东省优秀中青年科学家科研奖励基金(批准号2007BS04031)资助的课题~~
关键词 散斑 概率密度 干涉 speckle probability density interference
  • 相关文献

参考文献3

二级参考文献11

  • 1Daity J C 1975 Laser speckle and related phenomena ( New York : Springer-Verlag).
  • 2Wu X P, He S P and Li Z C 1980 Acta Phys. Sin. 29 1142(in Chinese).
  • 3Teng S Y, Cheng C F, Liu M, Liu L R and Xu Z Z 2003 Acta.Phys. Sin. 52 316(in Chinese).
  • 4Hunt J W, Worthington A E and Kerr A T 1995 Ultra. in Med. &Biol. 3 329.
  • 5Georgiou G and Cohen F S 1998 IEEE Trans. on UFFC. 1 57.
  • 6Maruvada S, Shung K K and Wang S H 2000 Ultra. in Med. Biol.6 1043.
  • 7Hong Z K and Han J B 1997 Ultrasonics 35 329.
  • 8Yuan C L, Ding Z H and Wu W T 1989 Surface roughness and measuremeru(Beijing: Mech. Indus.)p13(in Chinese).
  • 9Zhu H M, Liu Y H, Hu P and Liu C 2002 Acta Acoust. Sin. 27 213.(in Chinese).
  • 10Li Z M, Zhang Q F and Li X F 1990 Random signal analysis and its application in engineering ( Chengdu : Uni. of Elec. Sci. & Tech. ).p173(in Chinese).

共引文献24

同被引文献1

引证文献1

二级引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部