{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T02:48:05Z","timestamp":1779245285589,"version":"3.51.4"},"reference-count":26,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2015,6,5]],"date-time":"2015-06-05T00:00:00Z","timestamp":1433462400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National High-Tech Research &amp; Development Program of China","award":["2006AA06A202"],"award-info":[{"award-number":["2006AA06A202"]}]},{"name":"Youth Innovation Foundation of China Aero Geophysical Survey &amp; Remote Sensing Center for Land and Resources","award":["2010YFL05"],"award-info":[{"award-number":["2010YFL05"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>An airborne gravimeter is one of the most important tools for gravity data collection over large areas with mGal accuracy and a spatial resolution of several kilometers. In August 2012, a flight test was carried out to determine the feasibility and to assess the accuracy of the new Chinese SGA-WZ strapdown airborne gravimeter in Greenland, in an area with good gravity coverage from earlier marine and airborne surveys. An overview of this new system SGA-WZ is given, including system design, sensor performance and data processing. The processing of the SGA-WZ includes a 160 s length finite impulse response filter, corresponding to a spatial resolution of 6 km. For the primary repeated line, a mean r.m.s. deviation of the differences was less than 1.5 mGal, with the error estimate confirmed from ground truth data. This implies that the SGA-WZ could meet standard geophysical survey requirements at the 1 mGal level.<\/jats:p>","DOI":"10.3390\/s150613258","type":"journal-article","created":{"date-parts":[[2015,6,5]],"date-time":"2015-06-05T10:23:07Z","timestamp":1433499787000},"page":"13258-13269","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in Greenland"],"prefix":"10.3390","volume":"15","author":[{"given":"Lei","family":"Zhao","sequence":"first","affiliation":[{"name":"College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, China"},{"name":"National Space Institute, Technical University of Denmark, Copenhagen \u00d8 2800, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ren\u00e9","family":"Forsberg","sequence":"additional","affiliation":[{"name":"National Space Institute, Technical University of Denmark, Copenhagen \u00d8 2800, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Meiping","family":"Wu","sequence":"additional","affiliation":[{"name":"College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arne","family":"Olesen","sequence":"additional","affiliation":[{"name":"National Space Institute, Technical University of Denmark, Copenhagen \u00d8 2800, Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kaidong","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juliang","family":"Cao","sequence":"additional","affiliation":[{"name":"College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2015,6,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"131","DOI":"10.1007\/978-3-642-79721-7_15","article-title":"Some unsolved problems in airborne gravimetry","volume":"Volume 113","author":"Marson","year":"1995","journal-title":"Gravity and Geoid"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/BF00807986","article-title":"Airborne vector gravimetry using precise, position-aided inertial measurement units","volume":"69","author":"Jekeli","year":"1994","journal-title":"Bull. 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