caa a22 4500 475737660 CHVBK 20180406123451.0 cr unu---uuuuu 170329e20000701xx s 000 0 eng 10.1007/s001900000082 doi (NATIONALLICENCE)springer-10.1007/s001900000082 A comparison of stable platform and strapdown airborne gravity [Elektronische Daten] [C. L. Glennie, K. P. Schwarz, A. M. Bruton, R. Forsberg, A. V. Olesen, K. Keller] Abstract.: To date, operational airborne gravity results have been obtained using either a damped two-axis stable platform gravimeter system such as the LaCoste and Romberg (LCR) S-model marine gravimeter or a strapdown inertial navigation system (INS), showing comparable accuracies. In June 1998 three flight tests were undertaken which tested an LCR gravimeter and a strapdown INS gravity system side by side. To the authors' knowledge, this was the first time such a comparison flight was undertaken. The flights occurred in Disko Bay, off the west coast of Greenland. Several of the flight lines were partly flown along existing shipborne gravity profiles to allow for an independent source of comparison of the results. The results and analysis of these flight tests are presented. The measurement method and error models for both the stable platform and strapdown INS gravity systems are presented and contrasted. An intercomparison of gravity estimates from both systems is given, along with a comparison of the individual estimates with existing shipborne gravity profiles. The results of the flight tests show that the gravity estimates from the two systems agree at the 2-3 mGal level, after the removal of a linear bias. This is near the combined noise level of the two systems. It appears that a combination of both systems would provide an ideal airborne gravity survey system, combining the excellent bias stability of the LCR gravimeter with the higher dynamic range and increased spatial resolution of the strapdown INS. Springer-Verlag Berlin Heidelberg, 2000 Key words: Airborne gravimetry nationallicence Strapdown gravity system nationallicence Analysis of flight tests nationallicence DGPS/INS integration nationallicence Glennie C. L. Department of Geomatics Engineering, The University of Calgary, 2500 University Drive N.W., Calgary, Alberta, Canada T2N 1N4. e-mail: ambruton@ucalgary.ca; Tel.: +403 220 5834; Fax: +403 284 1980, CA aut Schwarz K. P. Department of Geomatics Engineering, The University of Calgary, 2500 University Drive N.W., Calgary, Alberta, Canada T2N 1N4. e-mail: ambruton@ucalgary.ca; Tel.: +403 220 5834; Fax: +403 284 1980, CA aut Bruton A. M. Department of Geomatics Engineering, The University of Calgary, 2500 University Drive N.W., Calgary, Alberta, Canada T2N 1N4. e-mail: ambruton@ucalgary.ca; Tel.: +403 220 5834; Fax: +403 284 1980, CA aut Forsberg R. KMS, National Survey and Cadastre, Rentemestervej 8, DK-2400 Copenhagen NV, Denmark, DK aut Olesen A. V. KMS, National Survey and Cadastre, Rentemestervej 8, DK-2400 Copenhagen NV, Denmark, DK aut Keller K. KMS, National Survey and Cadastre, Rentemestervej 8, DK-2400 Copenhagen NV, Denmark, DK aut https://doi.org/10.1007/s001900000082 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s001900000082 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Glennie C. L. Department of Geomatics Engineering, The University of Calgary, 2500 University Drive N.W., Calgary, Alberta, Canada T2N 1N4. e-mail: ambruton@ucalgary.ca; Tel.: +403 220 5834; Fax: +403 284 1980, CA aut NATIONALLICENCE 700 1- Schwarz K. P. Department of Geomatics Engineering, The University of Calgary, 2500 University Drive N.W., Calgary, Alberta, Canada T2N 1N4. e-mail: ambruton@ucalgary.ca; Tel.: +403 220 5834; Fax: +403 284 1980, CA aut NATIONALLICENCE 700 1- Bruton A. M. Department of Geomatics Engineering, The University of Calgary, 2500 University Drive N.W., Calgary, Alberta, Canada T2N 1N4. e-mail: ambruton@ucalgary.ca; Tel.: +403 220 5834; Fax: +403 284 1980, CA aut NATIONALLICENCE 700 1- Forsberg R. KMS, National Survey and Cadastre, Rentemestervej 8, DK-2400 Copenhagen NV, Denmark, DK aut NATIONALLICENCE 700 1- Olesen A. V. KMS, National Survey and Cadastre, Rentemestervej 8, DK-2400 Copenhagen NV, Denmark, DK aut NATIONALLICENCE 700 1- Keller K. KMS, National Survey and Cadastre, Rentemestervej 8, DK-2400 Copenhagen NV, Denmark, DK aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer