中国物理B ›› 2008, Vol. 17 ›› Issue (3): 960-966.doi: 10.1088/1674-1056/17/3/036

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Instantaneous coherent polarization and coherent polarimetric spectra

刘涛, 王雪松, 肖顺平   

  1. School of Electronic Science and Engineering, National University of Defence Technology, Changsha 410073, China
  • 收稿日期:2007-03-06 修回日期:2007-07-03 出版日期:2008-03-04 发布日期:2008-03-04

Instantaneous coherent polarization and coherent polarimetric spectra

Liu Tao(刘涛), Wang Xue-Song(王雪松), and Xiao Shun-Ping(肖顺平)   

  1. School of Electronic Science and Engineering, National University of Defence Technology, Changsha 410073, China
  • Received:2007-03-06 Revised:2007-07-03 Online:2008-03-04 Published:2008-03-04

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摘要： The statistics of polarization in electromagnetic waves or target vector has been studied deeply, generally using Stokes parameters. Unfortunately, all the data-processing includes the assumption that the sampling data are independent of time, without a consideration of the time coherence of the polarization data, such as instantaneous Stokes parameters. In this paper, the definitions of the instantaneous coherent polarization function and polarimetric spectrum are presented for the first time, which shows the coherences of the instantaneous Stokes parameters in both time and frequency domain, even in spatial coherence. The new formula of definition can be extended to spatial propagation coherence, both in free space or any linear medium.

Abstract: The statistics of polarization in electromagnetic waves or target vector has been studied deeply, generally using Stokes parameters. Unfortunately, all the data-processing includes the assumption that the sampling data are independent of time, without a consideration of the time coherence of the polarization data, such as instantaneous Stokes parameters. In this paper, the definitions of the instantaneous coherent polarization function and polarimetric spectrum are presented for the first time, which shows the coherences of the instantaneous Stokes parameters in both time and frequency domain, even in spatial coherence. The new formula of definition can be extended to spatial propagation coherence, both in free space or any linear medium.

Key words: instantaneous polarization, coherence, polarization spectra

中图分类号:  (Electromagnetic wave propagation; radiowave propagation)

  • 41.20.Jb
42.25.Ja (Polarization) 42.25.Kb (Coherence)