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Vol. 30, issue 08, article # 4

Afanas'ev A. L., Banakh V. A., Marakasov D. A. Comparative estimates of the transversal wind velocity component from optical and acoustic measurements in the surface air layer. // Optika Atmosfery i Okeana. 2017. V. 30. No. 08. P. 651–657. DOI: 10.15372/AOO20170804 [in Russian].
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Abstract:

A passive optical method for measurement of the crosswind velocity averaged over an atmospheric path is developed. The crosswind velocity estimation is based on the correlation algorithm operating with the shifts of energy centroids of images of topographic objects under natural daylight. Testing results of a measurer prototype based on this algorithm are discribed. The wind velocity estimates recorded by passive optical measurer and acoustic weather station are compared. The optimal duration for averaging the mutual correlation function providing the stability of real-time wind measurements is estimated.

Keywords:

non-coherent source, image correlation, path-averaged wind velocity, passive optical measurer, acoustic anemometer, turbulence

References:

  1. Wang T.-I. Оptical flow sensor using a fast correlation algorithm. Patent No. US 6,611,319 B2. Aug. 26, 2003.
  2. 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; Аfаnаsiеv А.L., Bаnаkh V.А., Rоstоv А.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.
  3. Afanas'ev A.L., Banah V.A., Rostov A.P. Vejvlet profilirovanie skorosti vetra po fluktuacijam intensivnosti lazernogo puchka, rasprostranjajushhegosja v atmosfere // Optika i spektroskopija. 2008. V. 105, N 4. P. 698–705.
  4. Roopashree M.B., Akondi Vyas, Raghavendra Prasad B. A review of Atmospheric wind speed measurement techniques with shack hartmann wavefront imaging sensor in adaptive optics // J. Indian Inst. Sci. 2013. V. 93. P. 67–84.
  5. BLS2000 Large Aperture Scintillometer for Very Long Paths. 2012. URL: www.scintec.com.
  6. Lawrence R.S., Ochs G.R., Clifford S.F. Use of scintillations to measure average wind across a light beam // Appl. Opt. 1972. V. 11, N 2. P. 239–243.
  7. Banah V.A., Smaliho I.N. Kogerentnye doplerovskie vetrovye lidary v turbulentnoj atmosfere. Tomsk: Izd-vo IOA SO RAN, 2013. 304 p.
  8. Banakh V.A., Smalikho I.N. Coherent Doppler wind lidars in a turbulent atmosphere. Boston;  London: Artech House, 2013. 248 p.
  9. Smalikho I.N., Banakh V.A. Estimation of aircraft wake vortex parameters from data measured with 1.5 mm coherent Doppler lidar // Opt. Lett. 2015. V. 40, N 14. P. 3408–3411.
  10. Clifford S.F., Ochs G.R., Wang T.-I. Optical wind sensing by observing the scintillations of a random scene // Appl. Opt. 1975. V. 14, N 12. P. 2844–2850.
  11. Walters D.L. Passive remote crosswind sensor // Appl. Opt. 1977. V. 16, N 10. P. 2625–2626.
  12. Porat O., Shapira J. Passive cross-wind remote sensing using optical turbulence-induced fluctuations // Proc. SPIE. 2010. V. 7828. P. 78280A-1–78280A-6.
  13. 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.
  14. Banakh V.A., Marakasov D.A. Wind profile recovery from intensity fluctuations of a laser beam reflected in a turbulent atmosphere // Quantum Electron. 2008. V. 38. P. 404–408.
  15. Belenkii M. Passive crosswind profiler. Patent No. US 8,279,287 B2. Oct. 2, 2012.
  16. Marakasov D.A. The correlation of the displacements of the images of point sources in the turbulent atmosphere // Proc. SPIE. 2015. V. 9680. CID: 9680 1U.
  17. Marakasov D.A., Afanas'ev A.L. Korreljacija smeshhenij jelementov izobrazhenija ob#ektov slozhnoj formy v turbulentnoj atmosfere // Izv. vuzov. Fizika. 2015. V. 58, N 8/3. P. 204–206.
  18. 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.
  19. Afanas'ev A.L., Banah V.A., Rostov A.P. Ocenivanie vetra i turbulentnosti v prizemnoj atmosfere po iskazhenijam videoizobrazhenij opticheskih istochnikov i osveshhennyh ob#ektov // Optika atmosf. i okeana. 2016. V. 29, N 4. P. 285–293; Аfаnаsiеv А.L., Bаnаkh V.А., Rоstоv А.P. Estimate 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.
  20. Spravochnik po special'nym funkcijam s formulami, grafikami i matematicheskimi tablicami / Pod red. M. Abramovic, I. Stigan. M.: Nauka, 1979. 832 p.