{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T15:22:30Z","timestamp":1785511350076,"version":"3.56.0"},"reference-count":18,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2018,3,10]],"date-time":"2018-03-10T00:00:00Z","timestamp":1520640000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The Gaofen-3 (GF-3) data processor was developed as a workstation-based GF-3 synthetic aperture radar (SAR) data processing system. The processor consists of two vital subsystems of the GF-3 ground segment, which are referred to as data ingesting subsystem (DIS) and product generation subsystem (PGS). The primary purpose of DIS is to record and catalogue GF-3 raw data with a transferring format, and PGS is to produce slant range or geocoded imagery from the signal data. This paper presents a brief introduction of the GF-3 data processor, including descriptions of the system architecture, the processing algorithms and its output format.<\/jats:p>","DOI":"10.3390\/s18030835","type":"journal-article","created":{"date-parts":[[2018,3,12]],"date-time":"2018-03-12T13:13:48Z","timestamp":1520860428000},"page":"835","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":50,"title":["The GF-3 SAR Data Processor"],"prefix":"10.3390","volume":"18","author":[{"given":"Bing","family":"Han","sequence":"first","affiliation":[{"name":"Key Laboratory of Technology in Geo-Spatial Information Processing and Application Systems, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chibiao","family":"Ding","sequence":"additional","affiliation":[{"name":"Key Laboratory of Technology in Geo-Spatial Information Processing and Application Systems, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"National Key Laboratory of Microwave Imaging Technology, Beijing 100190, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lihua","family":"Zhong","sequence":"additional","affiliation":[{"name":"Key Laboratory of Technology in Geo-Spatial Information Processing and Application Systems, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiayin","family":"Liu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Technology in Geo-Spatial Information Processing and Application Systems, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8517-3415","authenticated-orcid":false,"given":"Xiaolan","family":"Qiu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Technology in Geo-Spatial Information Processing and Application Systems, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuxin","family":"Hu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Technology in Geo-Spatial Information Processing and Application Systems, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bin","family":"Lei","sequence":"additional","affiliation":[{"name":"Key Laboratory of Technology in Geo-Spatial Information Processing and Application Systems, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2018,3,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Sun, J., Yu, W., and Den, Y. (2017). The SAR Payload Designed and Performance for the GF-3 Mission. Sensors, 17.","DOI":"10.3390\/s17102419"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"113","DOI":"10.1109\/MGRS.2015.2467172","article-title":"Overview of China Earth Observation Satellite Programs","volume":"3","author":"Gu","year":"2015","journal-title":"IEEE Geosci. Remote Sens. Mag."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"He, L., Tong, L., Chen, Y., Jia, M., and Shi, J. (2013, January 21\u201326). Soil Moisture Monitoring Based on HJ-1C S-Band SAR Image and Experimental Data. Proceedings of the IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Melbourne, Australia.","DOI":"10.1109\/IGARSS.2013.6723647"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"786","DOI":"10.1109\/36.298008","article-title":"Precision SAR processing using chirp scaling","volume":"32","author":"Raney","year":"1994","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Ossowska, A., and Speck, R. (2008, January 21\u201323). Hybrid strip-map\/spotlight mode processing based on chirp scaling processing. Proceedings of the IEEE International Radar Symposium, Wroclaw, Poland.","DOI":"10.1109\/IRS.2008.4585748"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"363","DOI":"10.1049\/ip-rsn:20010662","article-title":"New approach for hybrid strip-map\/spotlight SAR data focusing","volume":"148","author":"Lanari","year":"2001","journal-title":"IEEE Proc. Radar Sonar Navig."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"1123","DOI":"10.1109\/36.536528","article-title":"Extended chirp scaling algorithm for air- and spaceborne SAR data processing in stripmap and scanSAR imaging modes","volume":"34","author":"Moreira","year":"1996","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_8","first-page":"1295","article-title":"Radiometric Correction and Calibration of SAR Images","volume":"55","author":"Freeman","year":"1989","journal-title":"Photogramm. Eng. Remote Sens."},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Liu, J., Han, B., Ding, C., Meng, D., and Li, F. (2017, January 23\u201328). The preliminary results about positioning accuracy of GF-3 SAR satellite system. Proceedings of the 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Fort Worth, TA, USA.","DOI":"10.1109\/IGARSS.2017.8128398"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1694","DOI":"10.3724\/SP.J.1146.2010.01259","article-title":"Research on Mending of Space-borne Sliding Spotlight SAR Imaging Model Error","volume":"33","author":"Han","year":"2011","journal-title":"J. Electron. Inf. Technol."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"997","DOI":"10.1109\/7.784069","article-title":"Trajectory Deviations in Airport SAR: Analysis and Compensation","volume":"35","author":"Fornaro","year":"1999","journal-title":"IEEE Trans. Aerosp. Electron. Syst."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"336","DOI":"10.5589\/m04-016","article-title":"McLeod: The RADARSAT-2 SAR Processor","volume":"30","author":"Thompson","year":"2004","journal-title":"Can. J. Remote Sens."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"579","DOI":"10.1109\/TGRS.2012.2201947","article-title":"First spaceborne demonstration of digital beamforming for azimuth ambiguity suppression","volume":"51","author":"Kim","year":"2013","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_14","first-page":"1123","article-title":"Unambiguous SAR signal reconstruction from nonuniform displaced phase center sampling","volume":"34","author":"Krieger","year":"1996","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Jin, T., Qiu, X., Hu, D., and Ding, C. (2017). Unambiguous Imaging of Static Scenes and Moving Targets with the First Chinese Dual-Channel Spaceborne SAR Sensor. Sensors, 17.","DOI":"10.3390\/s17081709"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"3933","DOI":"10.1109\/TGRS.2009.2027596","article-title":"A New Method for Correcting ScanSAR Scalloping Using Forests and Inner-Scan Banding Employing Dynamic Filtering","volume":"47","author":"Shimada","year":"2009","journal-title":"IEEE Trans. Geosci. Remote Sens."},{"key":"ref_17","unstructured":"Yao, Y., and Chen, Q. (2017). The GF-3 Product Description, China Center for Resources Satellite Data and Application."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"1029","DOI":"10.1109\/36.312891","article-title":"Airborne SAR processing of highly squinted data using a chirp scaling approach with integrated motion compensation","volume":"32","author":"Moreira","year":"1994","journal-title":"IEEE Trans. Geosci. Remote Sens."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/18\/3\/835\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T14:56:33Z","timestamp":1760194593000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/18\/3\/835"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,3,10]]},"references-count":18,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2018,3]]}},"alternative-id":["s18030835"],"URL":"https:\/\/doi.org\/10.3390\/s18030835","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,3,10]]}}}