Shen Hong, Fan Chengyu. Influence of channel correlation on the signal scintillation with spatial diversity receiver[J]. Infrared and Laser Engineering, 2015, 44(8): 2523-2527.
| Citation:
|
Shen Hong, Fan Chengyu. Influence of channel correlation on the signal scintillation with spatial diversity receiver[J]. Infrared and Laser Engineering, 2015, 44(8): 2523-2527.
|
Influence of channel correlation on the signal scintillation with spatial diversity receiver
- 1.
Key Laboratory of Atmospheric Composition and Optical Radiation,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China
- Received Date: 2014-12-10
- Rev Recd Date:
2015-01-21
- Publish Date:
2015-08-25
-
Abstract
In order to explore influence of channel correlation on the signal scintillation in free space communications system with spatial diversity receiver and provide references for design of the sub-aperture size and its distribution, the expression of channel correlation coefficient of spatial diversity receiver under weak fluctuation conditions was deduced in theory. The relationship between channel correlation coefficient and signal scintillation with spatial diversity receiver was obtained. Channel correlation coefficient under both horizontal uniform and whole layer download non-uniform turbulent propagation paths was numerically studied. For the plane wave, there is an obvious negative correlation property between sub-channels for aperture receiver under non-uniform turbulent propagation path. For the spherical wave, it is similar for both turbulent non-uniform path and uniform path for aperture receiver; the negative correlation properties are not obvious.
-
References
|
[1]
|
|
|
[2]
|
Andrews L C, Phillips R L. Laser Beam Propagation Through Random Media [M]. Berlin:SPIE, 2005. |
|
[3]
|
|
|
[4]
|
Wang Zixiong, Zhong Wende, Fu Songnian, et al. Performance comparison of different modulation formats over free-space optical(FSO) turbulence links with space diversity reception technique[J]. IEEE Photonics Journal, 2009, 1(6):277-285. |
|
[5]
|
Wu Changqi, Pan Jimin, Yu Rongjin. Atmospheric optical communication with optimal selection diversity[J]. Infrared and Laser Engineering, 2005, 34(1): 114-126. (in Chinese) |
|
[6]
|
|
|
[7]
|
Chen Zhixiao, Yu Song, Jiang Long,et al. Influence of channel correlation on the scintillation performance of receiver diversity systems for free-space optical communications [C]//OFC/NFOEC Technical Digest, 2013, JW2A. 42: 1-3. |
|
[8]
|
|
|
[9]
|
Tatarski. Wave Propagation in a Turbulent Medium[M]. Beijing: Science Press, 1978. |
|
[10]
|
|
|
[11]
|
|
|
[12]
|
Sasiela R J. Electromagnetic Wave Propagation in Turbulence [M]. Berlin: SPIE, 2007. |
|
[13]
|
|
|
[14]
|
Zhang Deliang, Jiang Wenhan. Wandering of the speckle formed by multiple beams focused on the target in the horizontal homogeneous atmosphere [J]. Opto-Electronic Engineering, 1998, 25(2): 2037-2041. |
|
[15]
|
Andrews L C, Phillips R L, Hopen Cynthia Y. Laser Beam Acintillation with Applications [M]. Berlin: SPIE, 2001. |
-
-
Proportional views
-
DownLoad: