GNSS-based attitude determination for remote sensing platforms
Global Navigation Satellite Systems (GNSS)-based attitude determination is a valuable technique for the estimation of platform orientation. Precise attitude determination using multiple GNSS receivers/antennas mounted on a remote sensing platform relies on successful resolution of the carrier phase...
| Main Authors: | , , |
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| Format: | Conference Paper |
| Published: |
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/18216 |
| _version_ | 1848749681070309376 |
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| author | Nadarajah, Nandakumaran Teunissen, Peter Odijk, Dennis |
| author_facet | Nadarajah, Nandakumaran Teunissen, Peter Odijk, Dennis |
| author_sort | Nadarajah, Nandakumaran |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Global Navigation Satellite Systems (GNSS)-based attitude determination is a valuable technique for the estimation of platform orientation. Precise attitude determination using multiple GNSS receivers/antennas mounted on a remote sensing platform relies on successful resolution of the carrier phase integer ambiguities. The LAMBDA method has proven to be an efficient method to solve integer least squares problems. This method is, however, only applicable to unconstrained and/or linearly constrained models, but not to quadratically constrained models such as the GNSS attitude model. For a set of GNSS antennas rigidly mounted on a platform, a number of nonlinear geometrical constraints can be exploited for the purpose of strengthening the underlying observation model and subsequently improving the capacity of fixing the correct set of integer ambiguities. In this contribution, we describe and test the Multivariate Constrained (MC-) LAMBDA method, which effectively makes use of the known antenna geometry. Reliable and instantaneous integer estimation is particularly a challenge for single-frequency applications with low cost GNSS receivers. With our field tests, we show the potential of stand-alone, unaided, single-frequency, single epoch attitude determination. |
| first_indexed | 2025-11-14T07:24:48Z |
| format | Conference Paper |
| id | curtin-20.500.11937-18216 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:24:48Z |
| publishDate | 2011 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-182162017-01-30T12:06:32Z GNSS-based attitude determination for remote sensing platforms Nadarajah, Nandakumaran Teunissen, Peter Odijk, Dennis Global Navigation Satellite Systems (GNSS)-based attitude determination is a valuable technique for the estimation of platform orientation. Precise attitude determination using multiple GNSS receivers/antennas mounted on a remote sensing platform relies on successful resolution of the carrier phase integer ambiguities. The LAMBDA method has proven to be an efficient method to solve integer least squares problems. This method is, however, only applicable to unconstrained and/or linearly constrained models, but not to quadratically constrained models such as the GNSS attitude model. For a set of GNSS antennas rigidly mounted on a platform, a number of nonlinear geometrical constraints can be exploited for the purpose of strengthening the underlying observation model and subsequently improving the capacity of fixing the correct set of integer ambiguities. In this contribution, we describe and test the Multivariate Constrained (MC-) LAMBDA method, which effectively makes use of the known antenna geometry. Reliable and instantaneous integer estimation is particularly a challenge for single-frequency applications with low cost GNSS receivers. With our field tests, we show the potential of stand-alone, unaided, single-frequency, single epoch attitude determination. 2011 Conference Paper http://hdl.handle.net/20.500.11937/18216 restricted |
| spellingShingle | Nadarajah, Nandakumaran Teunissen, Peter Odijk, Dennis GNSS-based attitude determination for remote sensing platforms |
| title | GNSS-based attitude determination for remote sensing platforms |
| title_full | GNSS-based attitude determination for remote sensing platforms |
| title_fullStr | GNSS-based attitude determination for remote sensing platforms |
| title_full_unstemmed | GNSS-based attitude determination for remote sensing platforms |
| title_short | GNSS-based attitude determination for remote sensing platforms |
| title_sort | gnss-based attitude determination for remote sensing platforms |
| url | http://hdl.handle.net/20.500.11937/18216 |