{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T19:08:13Z","timestamp":1782932893733,"version":"3.54.5"},"reference-count":36,"publisher":"MDPI AG","issue":"24","license":[{"start":{"date-parts":[[2023,12,8]],"date-time":"2023-12-08T00:00:00Z","timestamp":1701993600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Director Fund of State Key Laboratory of Pulsed Power Laser Technology","award":["SKL2021ZR09"],"award-info":[{"award-number":["SKL2021ZR09"]}]},{"name":"Director Fund of State Key Laboratory of Pulsed Power Laser Technology","award":["AHL2021QN02"],"award-info":[{"award-number":["AHL2021QN02"]}]},{"name":"Research Fund of State Key Laboratory of Pulsed Power Laser Technology","award":["SKL2021ZR09"],"award-info":[{"award-number":["SKL2021ZR09"]}]},{"name":"Research Fund of State Key Laboratory of Pulsed Power Laser Technology","award":["AHL2021QN02"],"award-info":[{"award-number":["AHL2021QN02"]}]},{"name":"Foundation of Advanced Laser Technology Laboratory of Anhui Province","award":["SKL2021ZR09"],"award-info":[{"award-number":["SKL2021ZR09"]}]},{"name":"Foundation of Advanced Laser Technology Laboratory of Anhui Province","award":["AHL2021QN02"],"award-info":[{"award-number":["AHL2021QN02"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Coherent Doppler wind lidar has become a primary remote sensing technique for measuring atmospheric wind fields in recent years. However, the high bandwidth of the time domain echo signal has limited real-time data acquisition and processing. In this work, we propose a real-time data acquisition and preprocessing integrated solution. This approach is implemented using on-chip system field programmable gate array (FPGA) hardware while utilizing a 7-channel base-4 polyphase fast Fourier transform calculation module and a pipelined structure operation. Within a 1 s data collection time, the real-time rapid acquisition and spectral preprocessing of lidar echo signals at a range of 9.9 km can be achieved. We compare the observation data with the measurement data from Windcube100s and radiosondes, and the results indicate that the coherent wind lidar developed in this paper can detect heights above 4.0 km, with effective data acquisition rates of 82% and 61% in the height ranges of 1500\u20132000 m and 2000\u20132500 m, respectively. At the height range of 3.5 km, the correlations for horizontal wind speed and direction measured by the lidar were all above 0.99, with the wind speed and direction measurement deviations being better than 0.56 m\/s and 8.40\u2218, respectively.<\/jats:p>","DOI":"10.3390\/rs15245673","type":"journal-article","created":{"date-parts":[[2023,12,8]],"date-time":"2023-12-08T08:47:26Z","timestamp":1702025246000},"page":"5673","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Real-Time Synchronous Acquisition and Processing of Signal in Coherent Doppler Wind Lidar Using FPGA"],"prefix":"10.3390","volume":"15","author":[{"given":"Qing","family":"Liu","sequence":"first","affiliation":[{"name":"Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China"},{"name":"Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China"},{"name":"Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3086-243X","authenticated-orcid":false,"given":"Wenyue","family":"Zhu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China"},{"name":"Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaomei","family":"Jin","sequence":"additional","affiliation":[{"name":"Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China"},{"name":"Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2456-1366","authenticated-orcid":false,"given":"Chun","family":"Qing","sequence":"additional","affiliation":[{"name":"Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China"},{"name":"Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,12,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1871","DOI":"10.1175\/BAMS-85-12-1871","article-title":"The value of wind profiler data in U.S. weather forecasting","volume":"85","author":"Stanley","year":"2004","journal-title":"Bull. Am. Meteorol. Soc."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"071205","DOI":"10.1117\/1.1955167","article-title":"Computer simulation of coherent Doppler lidar measurement of wind velocity and retrieval of turbulent wind statistics","volume":"44","author":"Banakh","year":"2005","journal-title":"Opt. Eng."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"22345","DOI":"10.1364\/OE.394553","article-title":"Performance assessment of a coherent DIAL-Doppler fiber lidar at 1645 nm for remote sensing of methane and wind","volume":"28","author":"Cezard","year":"2020","journal-title":"Opt. Express"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"1142","DOI":"10.1364\/OE.27.001142","article-title":"Aircraft wake vortex and turbulence measurement under near-ground effect using coherent Doppler lidar","volume":"27","author":"Wu","year":"2019","journal-title":"Opt. Express"},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Schumann, U. (2012). Atmospheric Physics, Springer.","DOI":"10.1007\/978-3-642-30183-4"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"5540","DOI":"10.1364\/OE.445287","article-title":"Coherent Doppler wind lidar with real-time wind processing and low signal-to-noise ratio reconstruction based on a convolutional neural network","volume":"30","author":"Kliebisch","year":"2022","journal-title":"Opt. Express"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"36","DOI":"10.1007\/s00340-023-07984-2","article-title":"Wind retrieval for genetic algorithm-based coherent Doppler wind lidar employing airborne platform","volume":"129","author":"Zhao","year":"2023","journal-title":"Appl. Phys. B Lasers Opt."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Vasiljevi\u0107, N., Lea, G., Courtney, M., Cariou, J.P., Mann, J., and Mikkelsen, T. (2016). Long-range windscanner system. Remote Sens., 8.","DOI":"10.20944\/preprints201610.0017.v1"},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Fujii, T., and Fukuchi, T. (2005). Laser Remote Sensing, CRC Press.","DOI":"10.1201\/9781420030754"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1026","DOI":"10.1364\/AO.9.001026","article-title":"Laser Doppler detection systems for gas velocity measurement","volume":"9","author":"Huffaker","year":"1970","journal-title":"Appl. Opt."},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Banakh, V.A., and Smalikho, I.N. (2023). The impact of internal gravity waves on the spectra of turbulent fluctuations of vertical wind velocity in the stable atmospheric boundary layer. Remote Sens., 15.","DOI":"10.3390\/rs15112894"},{"key":"ref_12","unstructured":"Cariou, J., Sauvage, L., Thobois, L., Gorju, G., Machta, M., Lea, G., and Dubou\u00e9, M. (2011, January 20\u201324). Long range scanning pulsed Coherent Lidar for real time wind monitoring in the Planetary Boundary Layer. Proceedings of the 16th Coherent Laser Radar Conference 2011 (CLRC XVI), Long Beach, CA, USA."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"072801","DOI":"10.3788\/COL201412.072801","article-title":"All fiber pulsed coherent lidar development for wind profiles measurements in boundary layers","volume":"12","author":"Diao","year":"2014","journal-title":"Chin. Opt. Lett."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"20663","DOI":"10.1364\/OE.25.020663","article-title":"1.5 \u03bcm polarization coherent lidar incorporating time-division multiplexing","volume":"25","author":"Wang","year":"2017","journal-title":"Opt. Express"},{"key":"ref_15","unstructured":"Liu, H., Zhu, X.F., Fan, C.H., Bi, D.C., Liu, J.Q., Zhang, X., Zhu, X.L., and Chen, W.B. (2019, January 24\u201328). Field performance of all-fiber pulsed coherent Doppler lidar. Proceedings of the 29th International Laser Radar Conference, Heifei, China."},{"key":"ref_16","unstructured":"Abdelazim, S., Santoro, D., Arend, M., Moshary, F., and Ahmed, S. (2015, January 5\u201310). Signal to Noise Ratio Characterization of Coherent Doppler Lidar Backscattered Signals. Proceedings of the 27th International Laser Radar Conference, New York, NY, USA."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"1953","DOI":"10.1364\/AO.46.001953","article-title":"Compact all-fiber pulsed coherent Doppler lidar system for wind sensing","volume":"46","author":"Kameyama","year":"2007","journal-title":"Appl. Opt."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"124102","DOI":"10.1117\/1.OE.61.12.124102","article-title":"Field programmable gate array-based coherent lidar employing the ordinal statistics method for fast Doppler frequency determinatio","volume":"61","author":"Saklakova","year":"2022","journal-title":"Opt. Eng."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"096103","DOI":"10.1117\/1.OE.58.9.096103","article-title":"1.55-\u03bcm pulse coherent LIDAR with 10-km detection range","volume":"58","author":"Zhou","year":"2019","journal-title":"Opt. Eng."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"3179","DOI":"10.1364\/OL.465307","article-title":"Meter-scale and sub-second-resolution coherent Doppler wind LIDAR and hyperfine wind observation","volume":"47","author":"Liang","year":"2022","journal-title":"Opt. Lett."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"034105","DOI":"10.1117\/1.OE.58.3.034105","article-title":"Portable coherent Doppler light detection and ranging for boundary-layer wind sensing","volume":"58","author":"Rui","year":"2019","journal-title":"Opt. Eng."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"777","DOI":"10.1109\/TGRS.1986.289626","article-title":"Performance of a discrete spectral peak frequency estimator for Doppler wind velocity measurements","volume":"24","author":"Hardesty","year":"1986","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"16","DOI":"10.1109\/36.210440","article-title":"Discrete spectral peak estimation in incoherent backscatter heterodyne lidar. I. Spectral accumulation and the cramerrao lower bound","volume":"31","author":"Rye","year":"1993","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"28","DOI":"10.1109\/36.210441","article-title":"Discrete spectral peak estimation in incoherent backscatter heterodyne lidar. II. Correlogram accumulation","volume":"31","author":"Rye","year":"1993","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Abdelazim, S., Santoro, D., Arend, M., Moshary, F., and Ahmed, S. (2011, January 19\u201322). Field programmable gate array processing of eye-safe all-fiber coherent wind Doppler lidar return signals. Proceedings of the SPIE Remote Sensing, Prague, Czech Republic.","DOI":"10.1117\/12.898414"},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Abdelazim, S., Santoro, D., Arend, M., Moshary, F., and Ahmed, S. (2018). A hardware implemented autocorrelation technique for estimating power spectral density for processing signals from a Doppler wind lidar system. Sensors, 18.","DOI":"10.3390\/s18124170"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"095106","DOI":"10.1063\/5.0014389","article-title":"Real-time laser Doppler anemometry for optical air data applications in low aerosol environments","volume":"91","author":"Kliebisch","year":"2020","journal-title":"Rev. Sci. Instrum."},{"key":"ref_28","unstructured":"(2017). Air Quality\u2013Environmental Meteorology\u2013Part 2: Ground\u2013Based Remote Sensing of Wind by Heterodyne Pulsed Doppler Lidar (Standard No. ISO 28902-2:2017)."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"214","DOI":"10.1016\/j.egypro.2014.07.230","article-title":"Comparison of LiDAR and radiosonde wind measurements","volume":"53","author":"Kumer","year":"2014","journal-title":"Energy Procedia"},{"key":"ref_30","first-page":"11439","article-title":"A one year comparison of 482 MHz radar wind profiler, RS92-SGP radiosonde and 1.5 \u03bcm Doppler lidar wind measurements","volume":"7","author":"Paschke","year":"2014","journal-title":"Atmos. Meas. Tech. Discuss."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"123103","DOI":"10.1117\/1.OE.54.12.123103","article-title":"All-fiber pulse coherent Doppler LIDAR and its validations","volume":"54","author":"Bu","year":"2015","journal-title":"Opt. Eng."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"2304","DOI":"10.1175\/2008JTECHA1113.1","article-title":"Evaluation of DBS wind measurement technique in different beam configurations for a VHF wind profiler","volume":"25","author":"Rao","year":"2008","journal-title":"J. Atmos. Ocean. Technol."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"14","DOI":"10.1109\/TCE.2003.1205450","article-title":"New efficient FFT algorithm and pipeline implementation results for OFDM\/DMT application","volume":"49","author":"Jung","year":"2003","journal-title":"IEEE Trans. Consum. Electron."},{"key":"ref_34","first-page":"031217","article-title":"Long-range wind monitoring in real time with optimized coherent lidar","volume":"56","author":"Canat","year":"2019","journal-title":"Opt. Eng."},{"key":"ref_35","first-page":"466","article-title":"Performance of continuous wave coherent Doppler lidar for wind measurement","volume":"3","author":"Jiang","year":"2019","journal-title":"Curr. Opt. Photonics"},{"key":"ref_36","first-page":"30","article-title":"Vivado design suite","volume":"5","author":"Feist","year":"2012","journal-title":"White Pap."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/15\/24\/5673\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T21:35:29Z","timestamp":1760132129000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/15\/24\/5673"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,12,8]]},"references-count":36,"journal-issue":{"issue":"24","published-online":{"date-parts":[[2023,12]]}},"alternative-id":["rs15245673"],"URL":"https:\/\/doi.org\/10.3390\/rs15245673","relation":{},"ISSN":["2072-4292"],"issn-type":[{"value":"2072-4292","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,12,8]]}}}