{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,1,6]],"date-time":"2025-01-06T06:40:33Z","timestamp":1736145633966,"version":"3.32.0"},"reference-count":29,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2023,1,27]],"date-time":"2023-01-27T00:00:00Z","timestamp":1674777600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"the Strategic Priority Research Program of Chinese Academy of Sciences","award":["XDA15012300"]},{"name":"the Scientific Research Project of the Chinese Academy of Science","award":["YZ201129"]},{"name":"the Youth Innovation Promotion Association, CAS","award":["2018180"]},{"name":"the Youth Cross Team Scientific Research Project of the Chinese Academy of Sciences","award":["JCTD-2021-10"]},{"DOI":"10.13039\/501100001809","name":"the National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["42104032","42074042"],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"name":"the Pandeng Program of NSSC, CAS"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"The vigorous development of the global navigation satellite system (GNSS) has led to a boom in GNSS radio occultation (GNSS RO) and GNSS reflectometry (GNSS-R) techniques. Consequently, we have proposed an innovative signal processing scheme for spaceborne integrated GNSS remote sensors (SIGRS), combining a GNSS RO and a GNSS-R module. In the SIGRS, the GNSS-R module shares one precise orbit determination (POD) module with the GNSS RO module, and the GNSS-R module first achieves compatibility with GPS, BDS, and Galileo. Moreover, the programmable non-uniform delay resolution was introduced and first used by the SIGRS to generate the output DDM, which achieves a high delay resolution in the DDM central region around the specular point to improve the accuracy of basic observables but requires fewer delay bins than the conventional DDM with uniform delay resolution. The SIGRS has been successfully used to design the GNOS II onboard the Chinese FY-3E satellite, and the results of in-orbit operation validate the performance of the SIGRS, which means the SIGRS is an economically and technically efficient design and has become the first successful signal processing scheme for spaceborne integrated GNSS remote sensors around the world.<\/jats:p>","DOI":"10.3390\/rs15030745","type":"journal-article","created":{"date-parts":[[2023,1,30]],"date-time":"2023-01-30T15:19:28Z","timestamp":1675091968000},"page":"745","source":"Crossref","is-referenced-by-count":6,"title":["An Innovative Signal Processing Scheme for Spaceborne Integrated GNSS Remote Sensors"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4410-1263","authenticated-orcid":false,"given":"Tongsheng","family":"Qiu","sequence":"first","affiliation":[{"name":"National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China"}]},{"given":"Xianyi","family":"Wang","sequence":"additional","affiliation":[{"name":"National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China"}]},{"given":"Yueqiang","family":"Sun","sequence":"additional","affiliation":[{"name":"National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China"}]},{"given":"Fu","family":"Li","sequence":"additional","affiliation":[{"name":"National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China"}]},{"given":"Zhuoyan","family":"Wang","sequence":"additional","affiliation":[{"name":"National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China"}]},{"given":"Junming","family":"Xia","sequence":"additional","affiliation":[{"name":"National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China"}]},{"given":"Qifei","family":"Du","sequence":"additional","affiliation":[{"name":"National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China"}]},{"given":"Weihua","family":"Bai","sequence":"additional","affiliation":[{"name":"National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China"}]},{"given":"Yuerong","family":"Cai","sequence":"additional","affiliation":[{"name":"National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China"}]},{"given":"Dongwei","family":"Wang","sequence":"additional","affiliation":[{"name":"National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China"}]},{"given":"Cheng","family":"Liu","sequence":"additional","affiliation":[{"name":"National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China"}]},{"given":"Hao","family":"Qiao","sequence":"additional","affiliation":[{"name":"National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6888-280X","authenticated-orcid":false,"given":"Feixiong","family":"Huang","sequence":"additional","affiliation":[{"name":"National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"Beijing Key Laboratory of Space Environment Exploration, Beijing 100190, China"}]}],"member":"1968","published-online":{"date-parts":[[2023,1,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1107","DOI":"10.1126\/science.271.5252.1107","article-title":"Initial Results of Radio Occultation Observations of Earth\u2019s Atmosphere Using the Global Positioning System","volume":"271","author":"Kursinski","year":"1996","journal-title":"Science"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"3263","DOI":"10.1029\/2001GL013117","article-title":"Atmosphere sounding by GPS radio occultation: First results from CHAMP","volume":"28","author":"Wickert","year":"2001","journal-title":"Geophys. 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