Ales, Filippo and Gath, Peter and Johann, Ulrich and Braxmaier, Claus (2015) Line of Sight Alignment Algorithms for Future Gravity Missions. AIAA SciTech 2015, Kissimmee (5-9 January) 2015, Kissimmee, USA.
![]() |
PDF
- Only accessible within DLR
902kB |
Abstract
Laser interferometry is viable candidate to microwave interferometry as it exploits bet- ter performances in terms of range measurements. Preliminary studies on future gravity missions show that, before addressing their metrology target, these laser terminals of- ten require an intermediate alignment and signal acquisition phase whose complexity can vary according to instrument's layout and the environmental constrains. The line of sight alignment algorithms here presented are designed to autonomously perform spatial scans through laser beam pointing corrections and, if necessary, laser frequency tunings in order to overcome initial pointing and frequency errors. The laser beam guidance algorithms an- alyzed use randomly generated pointing and/or continuous curve patterns while frequency changes (if necessary) are operated through Piezo-electric and thermal tuning. The al- gorithms here presented are tailored for a two-satellite-based heterodyne interferometer and have been tested through numerical simulations. Nevertheless, being the formulation parametric allows the algorithm's to be readapted for a di�erent mission concept.
Item URL in elib: | https://elib.dlr.de/93930/ | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||
Title: | Line of Sight Alignment Algorithms for Future Gravity Missions | ||||||||||||||||||||
Authors: |
| ||||||||||||||||||||
Date: | 2015 | ||||||||||||||||||||
Refereed publication: | No | ||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||
Status: | Published | ||||||||||||||||||||
Keywords: | laser interferometry, gravity missions | ||||||||||||||||||||
Event Title: | AIAA SciTech 2015, Kissimmee (5-9 January) 2015 | ||||||||||||||||||||
Event Location: | Kissimmee, USA | ||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||||
HGF - Program Themes: | Earth Observation | ||||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||||
DLR - Program: | R EO - Earth Observation | ||||||||||||||||||||
DLR - Research theme (Project): | R - Vorhaben GRACE Follow-On (old) | ||||||||||||||||||||
Location: | Bremen | ||||||||||||||||||||
Institutes and Institutions: | Institute of Space Systems > Systems Enabling Technologies | ||||||||||||||||||||
Deposited By: | Aguilera, Deborah | ||||||||||||||||||||
Deposited On: | 18 Feb 2016 10:33 | ||||||||||||||||||||
Last Modified: | 15 Mar 2016 10:48 |
Repository Staff Only: item control page