Influence of turbulence outer scale on atmospheric transverse coherence length and isoplanatic angle

Zhengfang Song; Chengyu Fan

doi:10.1117/12.178045

29 June 1994 Influence of turbulence outer scale on atmospheric transverse coherence length and isoplanatic angle

Zhengfang Song, Chengyu Fan

Proceedings Volume 2222, Atmospheric Propagation and Remote Sensing III; (1994) https://doi.org/10.1117/12.178045
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

Abstract

Based on the measured height distributional data of the turbulent structure constant (C_n²), this article analyses the effect of turbulent outer scale (L_o) on atmospheric transverse coherence length r_o and isoplanatic angle ((theta) _o). The calculation result shows that r_o and (theta) _o will obviously increase when limited L_o is considered. The r_o and (theta) _o are much large for telescope at 2.2 micrometers . The limit of (theta) _o is likely to be several arcminutes and may possibly be even larger.

Citation Download Citation

Zhengfang Song and Chengyu Fan "Influence of turbulence outer scale on atmospheric transverse coherence length and isoplanatic angle", Proc. SPIE 2222, Atmospheric Propagation and Remote Sensing III, (29 June 1994); https://doi.org/10.1117/12.178045

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