Vol. 30, issue 04, article # 2

Abstract:

Numerical simulation is carried out in order to evaluate possibilities of crosswind velocity determination along an observation path between distant object and observer. The proposed simulation method is based on the analysis of atmospheric distortions in the object images. The influence of limited atmospheric areas on the object image distortion and possibilities of the drift velocity retrieval in these areas are investigated. A new method for filtration of turbulent distortions by their characteristic sizes is suggested with the aim to determine the wind velocity at different segments of the observation path. It is demonstrated that the evaluation method allows one to determine crosswind velocity with high accuracy when it is applied to a thin layer of atmospheric inhomogeneities.

Keywords:

wind, turbulent atmosphere, incoherent image

References:

1. Banakh V.A., Marakasov D.A., Vorontsov M.A. Cross- wind profiling based on the scattered wave scintillations in a telescope focus // Appl. Opt. 2007. V. 46, N 33. P. 8104–8117
1. Banakh V.A., Marakasov D.A. Wind velocity profile reconstruction from intensity fluctuations of a plane wave propagating in a turbulent atmosphere // Opt. Lett. 2007. V. 32, N 15. P. 2236–2238.
2. Banakh V.A., Marakasov D.A. Wind profiling based on the optical beam intensity statistics in a turbulent atmosphere // J. Opt. Soc. Am. A. 2007. V. 24, N 10. P. 3245–3254.
3. Marakasov D.A. Algoritm vosstanovlenija profilja vetra po turbulentnym fluktuacijam intensivnosti rassejannoj volny v priemnom teleskope // Optika atmosf. i okeana. 2007. V. 20, N 12. P. 1110–1114.
4. Antoshkin L.V., Lavrinov V.V., Lavrinova L.N., Lukin V.P. Differencial'nyj metod v izmerenii parametrov turbulentnosti i skorosti vetra datchikom volnovogo fronta // Optika atmosf. i okeana. 2008. V. 21, N 1. P. 75–80.
5. Marakasov D.A., Rychkov D.S., Falic A.V. Vosstanovlenie profilej vetra i strukturnoj harakteristiki pokazatelja prelomlenija po turbulentnym fluktuacijam intensivnosti lazernogo puchka // Optika atmosf. i okeana. 2009. V. 22, N 1. P. 82–85.
6. Marakasov D.A. Vosstanovlenie profilja skorosti vetra po fluktuacijam intensivnosti lazernogo puchka v priemnom teleskope // Optika atmosf. i okeana. 2010. V. 23, N 4. P. 304–307.
7. Afanas'ev A.L., Banah V.A., Rostov A.P. Opredelenie skorosti vetra v atmosfere po turbulentnym iskazhenijam videoizobrazhenij lazernogo puchka // Optika atmosf. i okeana. 2010. V. 23, N 8. P. 723–729; Afanas’ev A.L., Banakh V.A., Rostov A.P. Estimate of wind velocity in the atmosphere based on an analysis of turbulent distortions of laser beam images registered by video camera // Atmos. Ocean. Opt. 2011. V. 24, N 1. P. 88–94.
8. Holmes R.B. Passive optical wind profilometer. Patent N 5469250 USO05469250A. Nov. 21, 1995.
9. Belenkii M. Passive crosswind profiler. Patent Application Publication US 2010/0128136 A1. May 27, 2010.
10. Dudorov V.V., Eremina A.S. Determination of atmospheric turbulent inhomogeneity wind drift from sequence of incoherent images // Proc. SPIE. 2014. V. 9292. P. 1–6. DOI: 10.1117/12.2075640.
11. Eremina A.S., Dudorov V.V. Sposob fil'tracii i opredelenija skorosti smeshhenija turbulentnyh iskazhenij v videorjade opticheskih izobrazhenij pri vetrovom snose atmosfernyh neodnorodnostej // Izv. vuzov. Fiz. 2015. V. 58, N 8/2. P. 192–194.
12. Dudorov V.V., Eremina A.S. Filtration of optical image distortions for retrieving the drift velocity of atmospheric turbulence inhomogeneities // Proc. SPIE. 2015. V. 9680. P. 1–8. DOI: 10.1117/12.2206195.
13. Afanas'ev A.L., Banah V.A., Rostov A.P. Ocenivanie integral'noj skorosti vetra i turbulentnosti v atmosfere po iskazhenijam videoizobrazhenij estestvenno osveshhennyh ob#ektov // Optika atmosf. i okeana. 2016. V. 29, N 4. P. 285–293; Afanasiev A.L., Banakh V.A., Rostov A.P. Estimation of the integral wind velocity and turbulence in the atmosphere from distortions of optical images of naturally illuminated objects // Atmos. Ocean. Opt. 2016. V. 29, N 5. P. 422–430.
14. Marakasov D.A. Ocenka srednej skorosti vetra iz korreljacii smeshhenij centrov tjazhesti izobrazhenij nekogerentnyh istochnikov v turbulentnoj atmosfere // Optika atmosf. i okeana. 2016. V. 29, N 4. P. 294–299.
15. Dudorov V.V., Eremina A.S. Possibilities of crosswind profiling based on incoherent imaging // Proc. SPIE. 2016. V. 10035. P. 1–7. DOI: 10.1117/12.2249489.
16. Vorontsov M.A., Kolosov V.V. Target-in-the-loop beam control: basic considerations for analysis and wave-front sensing // J. Opt. Soc. Am. A. 2005. V. 22. P. 126–141.
17. Dudorov V.V., Vorontsov M.A., Kolosov V.V. Speckle field propagation in "frozen" turbulence: Brightness Function Approach // J. Opt. Soc. Am. A. 2006. V. 23, N 8. P. 1924–1936.
18. Dudorov V.V., Kolosov V.V., Filimonov G.A. Algoritm formirovanija beskonechnyh turbulentnyh jekranov dlja zadachi modelirovanija dolgovremennyh lazernyh jeksperimentov v atmosfere // Izv. Tomsk. politehn. un-ta. 2006. V. 309, N 8. P. 85–89.
19. Dudorov V.V., Filimonov G.A., Kolosov V.V. Algorithm for formation of an infinite random turbulent screen // Proc. SPIE. 2005. V. 6160. CID:61600R.
20. Lachinova S.L., Vorontsov M.A., Dudorov V.V., Kolosov V.V., Valley M.T. Anisoplanatic imaging through atmospheric turbulence: Brightness function approach // Proc. SPIE. 2007. V. 6708. P. 67080E.
21. Dudorov V.V., Kolosov V.V. Anisoplanatic turbulence correction in incoherent imaging by using reference sources with different wavelengths // Atmos. Ocean. Opt. 2010. V. 23, N 5. P. 353–358.