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Chin. Phys. B, 2008, Vol. 17(3): 960-966    DOI: 10.1088/1674-1056/17/3/036
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Instantaneous coherent polarization and coherent polarimetric spectra

Liu Tao(刘涛), Wang Xue-Song(王雪松), and Xiao Shun-Ping(肖顺平)
School of Electronic Science and Engineering, National University of Defence Technology, Changsha 410073, China
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.
Keywords:  instantaneous polarization      coherence      polarization spectra  
Received:  06 March 2007      Revised:  03 July 2007      Accepted manuscript online: 
PACS:  41.20.Jb (Electromagnetic wave propagation; radiowave propagation)  
  42.25.Ja (Polarization)  
  42.25.Kb (Coherence)  

Cite this article: 

Liu Tao(刘涛), Wang Xue-Song(王雪松), and Xiao Shun-Ping(肖顺平) Instantaneous coherent polarization and coherent polarimetric spectra 2008 Chin. Phys. B 17 960

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