The results of measurement of signal-to-noise ratio of a coherent lidar echo signal scattered by a diffuse screen are presented. Measurements were carried out under different refractive turbulence strength in the atmosphere. It is shown for the first time in the experiment that the mean power of echo signal of a coherent lidar increases with the turbulence strength.
coherent lidar, simulation, refractive turbulence, backscatter amplification
1. Belen'kij M.S., Mironov V.L. Difraktsiya opticheskogo izlucheniya na zerkal'nom diske v turbulentnoj atmosfere // Kvant. elektron. 1972. V. 5, N 11. P. 38–45.
2. Vinogradov A.G., Kravtsov Yu.A., Tatarskij V.I. Effekt usileniya obratnogo rasseyaniya na telah, pomeshchennyh v sredu so sluchajnymi neodnorodnostyami // Izv. vuzov. Radiofiz. 1973. V. 16, N 7. P. 1064–1070.
3. Vinogradov A.G., Kravtsov Yu.A. Fluktuatsii intensivnosti pri difraktsii voln na telah, pomeshchennyh v sluchajno neodnorodnuyu sredu // VI Vsesoyuz. simpozium po difraktsii i rasprostraneniyu voln: kratkie teksty dokl. Moskva; Erevan. 1973. Kn. 1. P. 294–298.
4. Belen'kij M.S., Mironov V.L. Opredelenie vysotnyh profilej parametra Cn2 v atmosfere iz lokatsionnyh opticheskih izmerenij // Kvant. elektron. 1974. V. 1, N 10. P. 2253–2262.
5. Kravtsov Yu.A., Saichev A.I. Effekty dvukratnogo prohozhdeniya voln v sluchajno-neodnorodnyh sredah // Uspekhi fiz. nauk. 1982. V. 137. P. 501–527.
6. Banakh V.A., Mironov V.L. Lidar in a turbulent atmosphere. Boston and London: Artech House, 1987. 185 p.
7. Banah V.A., Mironov V.L. Effekty usileniya rasseyaniya pri lazernoj lokatsii v turbulentnoj atmosfere // Optika atmosf. i okeana. 1995. V. 8, N 1–2. P. 50–68.
8. Gurvich A.S., Kashkarov S.S. K voprosu ob usilenii rasseyaniya v turbulentnoj srede // Izv. vuzov. Radiofiz. 1977. V. 20, N 5. P. 794–796.
9. Gurvich A.S. Lidarnoe zondirovanie turbulentnosti na osnove effekta usileniya obratnogo rasseyaniya // Izv. RAN. Fiz. atmosf. i okeana. 2012. V. 48, N 6. P. 655–665.
10. Lidar: 116245. Rossiya, MPK8, G 01 S 17/88. Gurvich A.S.; Uchrezhdenie RAN Institut fiziki atmosfery im. A.M. Obuhova RAN. N 2011150933/28; Zayavl. 15.12.2011; Opubl. 20.05.2012. Byul. N 14.
11. Banakh V.A. Usilenie srednej moshchnosti obratno rasseyannogo v atmosfere izlucheniya v rezhime sil'noj opticheskoj turbulentnosti // Optika atmosf. i okeana. 2012. V. 25, N 10. P. 857–862; Bаnаkh V.А. Enhancement of the laser return mean power at the strong optical scintillation regime in a turbulent atmosphere // Atmos. Ocean. Opt. 2013. V. 26, N 2. P. 90–95.
12. Smaliho I.N. Raschet koeffitsienta usileniya obratnogo rasseyaniya lazernogo izlucheniya, rasprostranyayushchegosya v turbulentnoj atmosfere, s ispol'zovaniem chislennogo modelirovaniya // Optika atmosf. i okeana. 2012. V. 25, N 9. P. 796–800; Smаlikho I.N. Calculation of the backscatter amplification coefficient of laser radiation propagating in a turbulent atmosphere using numerical simulation // Atmos. Ocean. Opt. 2013. V. 26, N 2. P. 135–139.
13. Vorob'ev V.V., Vinogradov A.G. Vliyanie fonovoj turbulentnosti v lidarnyh issledovaniyah turbulentnosti yasnogo neba // Optika atmosf. i okeana. 2013. V. 26, N 12. P. 1015–1022; Vоrоb’ev V.V., Vinogradov А.G. Effect of background turbulence in lidar investigations of clear air turbulence // Atmos. Ocean. Opt. 2014. V. 27, N 2. P. 134–141.
14. Ustrojstvo dlya registratsii usileniya obratnogo rasseyaniya v atmosfere: Pat. 153460. Russia, MPK, G01 S 17/95. Razenkov I.A., Banakh V.A., Nadeev A.I.; In-t optiki atmosfery im. V.E. Zueva SO RAN. N 2014149551/28; Zayavl. 10.12.2014; Opubl. 20.07.2015. Byul. N 20.
15. Banakh V.A., Razenkov I.A., Smalikho I.N. Laser echo signal amplification in a turbulent atmosphere // Appl. Opt. 2015. V. 54, N 24. P. 7301–7307.
16. Banakh V.A., Razenkov I.A. Refractive turbulence strength estimation based on the laser echo signal amplification effect // Opt. Lett. 2016. V. 41, N 19. P. 4429–4432.
17. Vorob'ev V.V. O primenimosti asimptoticheskikh formul vosstanovleniya parametrov «opticheskoj» turbulentnosti iz dannykh impul'snogo lidarnogo zondirovaniya. I. Uravneniya // Optika atmosf. i okeana. 2016. V. 29, N 10. P. 870–875; Vоrоb’ev V.V. On the applicability of asymptotic formulas of retrieving “optical” turbulence parameters from pulse lidar sounding data: I–equations // Atmos. Ocean. Opt. 2017. V. 30, N 2. P. 156–161.
18. Vorob'ev V.V. O primenimosti asimptoticheskikh formul vosstanovleniya parametrov «opticheskoj» turbulentnosti iz dannykh impul'snogo lidarnogo zondirovaniya. II. Rezul'taty chislennogo modelirovaniya // Optika atmosf. i okeana. 2016. V. 29, N 11. P. 987–993; Vоrоb’ev V.V. On the applicability of asymptotic formulas of retrieving “optical” turbulence parameters from pulse lidar sounding data: II–results of numerical simulation // Atmos. Ocean. Opt. 2017. V. 30, N 2. P. 162–168.
19. Banakh V.A., Smalikho I.N., Werner Ch. Numerical simulation of the effect of refractive turbulence on coherent lidar return statistics in the atmosphere // Appl. Opt. 2000. V. 39, N 30. P. 5403–5414.
20. Banakh V.A., Smalikho I.N. Kogerentnye doplerovskie vetrovye lidary v turbulentnoj atmosfere. Tomsk: Izd-vo IOA SO RAN, 2013. 304 p.
21. URL: http://www.halo-photonics.com (last access: 10.07.2018).