A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in Greenland
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 st...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2015-06-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/15/6/13258 |
| _version_ | 1817991889643634688 |
|---|---|
| author | Lei Zhao René Forsberg Meiping Wu Arne Vestergaard Olesen Kaidong Zhang Juliang Cao |
| author_facet | Lei Zhao René Forsberg Meiping Wu Arne Vestergaard Olesen Kaidong Zhang Juliang Cao |
| author_sort | Lei Zhao |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-14T01:18:47Z |
| format | Article |
| id | doaj.art-f953d0999c8b4fca8a17d4d3d239c061 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T01:18:47Z |
| publishDate | 2015-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-f953d0999c8b4fca8a17d4d3d239c0612022-12-22T02:20:44ZengMDPI AGSensors1424-82202015-06-01156132581326910.3390/s150613258s150613258A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in GreenlandLei Zhao0René Forsberg1Meiping Wu2Arne Vestergaard Olesen3Kaidong Zhang4Juliang Cao5College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, ChinaNational Space Institute, Technical University of Denmark, Copenhagen Ø 2800, DenmarkCollege of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, ChinaNational Space Institute, Technical University of Denmark, Copenhagen Ø 2800, DenmarkCollege of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, ChinaCollege of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, ChinaAn 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.http://www.mdpi.com/1424-8220/15/6/13258gravity datastrapdown airborne gravimeterinertial navigation systemfinite impulse response filterglobal positioning system |
| spellingShingle | Lei Zhao René Forsberg Meiping Wu Arne Vestergaard Olesen Kaidong Zhang Juliang Cao A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in Greenland Sensors gravity data strapdown airborne gravimeter inertial navigation system finite impulse response filter global positioning system |
| title | A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in Greenland |
| title_full | A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in Greenland |
| title_fullStr | A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in Greenland |
| title_full_unstemmed | A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in Greenland |
| title_short | A Flight Test of the Strapdown Airborne Gravimeter SGA-WZ in Greenland |
| title_sort | flight test of the strapdown airborne gravimeter sga wz in greenland |
| topic | gravity data strapdown airborne gravimeter inertial navigation system finite impulse response filter global positioning system |
| url | http://www.mdpi.com/1424-8220/15/6/13258 |
| work_keys_str_mv | AT leizhao aflighttestofthestrapdownairbornegravimetersgawzingreenland AT reneforsberg aflighttestofthestrapdownairbornegravimetersgawzingreenland AT meipingwu aflighttestofthestrapdownairbornegravimetersgawzingreenland AT arnevestergaardolesen aflighttestofthestrapdownairbornegravimetersgawzingreenland AT kaidongzhang aflighttestofthestrapdownairbornegravimetersgawzingreenland AT juliangcao aflighttestofthestrapdownairbornegravimetersgawzingreenland AT leizhao flighttestofthestrapdownairbornegravimetersgawzingreenland AT reneforsberg flighttestofthestrapdownairbornegravimetersgawzingreenland AT meipingwu flighttestofthestrapdownairbornegravimetersgawzingreenland AT arnevestergaardolesen flighttestofthestrapdownairbornegravimetersgawzingreenland AT kaidongzhang flighttestofthestrapdownairbornegravimetersgawzingreenland AT juliangcao flighttestofthestrapdownairbornegravimetersgawzingreenland |