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592
On Satellite Emulation by an Airborne Platform
"... For the design of satellite links, detailed knowledge of the transmission characteristics is important. Development issues such as channel measurements, feasibility and performance studies, pre-operational demonstration and verification tests, et cetera, are necessary or desirable before launch. For ..."
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. For this task, another satellite might be used eventually. However, if a suitable satellite is not available, a proper airborne platform is necessary to emulate the characteristics of the satellite under investigation as closely as possible. This situation is assumed in the following.
Based Modulation for Airborne Platforms
, 2012
"... All in-text references underlined in blue are linked to publications on ResearchGate, letting you access and read them immediately. ..."
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All in-text references underlined in blue are linked to publications on ResearchGate, letting you access and read them immediately.
Airborne Platforms Subcommittee Co-Chairs:
"... • To determine the capabilities of the national fleet to support specific scientific needs • To determine the availability and access to the national fleet • To provide a central location for information about the capabilities of the national fleet • To identify the needs that are not being met (use ..."
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(user information needed).Sample questions that can be addressed with airborne platform assessment products: User Question: What aircraft and instruments might I use for my research and do I find out about it/them? Operator Question: How do the capabilities of my platform compare with others
the High-performance Instrumented Airborne Platform for
"... Environmental Research Pole-to-Pole Observations (HIPPO) campaign above the remote Pacific from 85°N to 67°S. Over 700 vertical profiles extending from near the surface to max ~14 km altitude were obtained with a single-particle soot photometer between early 2009 and mid-2011. The data provides a cl ..."
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Environmental Research Pole-to-Pole Observations (HIPPO) campaign above the remote Pacific from 85°N to 67°S. Over 700 vertical profiles extending from near the surface to max ~14 km altitude were obtained with a single-particle soot photometer between early 2009 and mid-2011. The data provides a climatology of BC in the remote regions that reveals gradients of BC concentration reflecting global-scale transport and removal of pollution. BC is identified as a sensitive tracer of extratropical mixing into the lower tropical tropopause layer and trends toward surprisingly uniform loadings in the lower stratosphere of ~1 ng/kg. The climatology is compared to predictions from the AeroCom global model intercomparison initiative. The AeroCom model suite overestimates loads in the upper troposphere/lower stratosphere (~10×) more severely than at lower altitudes (~3×), with bias roughly independent of season or geographic location; these results indicate that it
Aerial object tracking from an airborne platform
- In: Proc. of International Conference on Unmanned Aircraft Systems
, 2014
"... Abstract — The integration of drones into the civil airspace is still an unresolved problem. In this paper we present an experimental Sense and Avoid system integrated into an aircraft to detect and track other aerial objects with electro-optical sensors. The system is based on a custom aircraft nos ..."
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Cited by 3 (1 self)
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videos from a mobile airborne platform in a mountainous area. The proposed tracking framework is based on measurements from multiple detectors fused onto a virtual sphere centered at the aircraft position. To reduce false tracks from ground clutter, clouds or dirt on the lens, a hierarchical multi
WYNER-ZIV CODING OF MULTISPECTRAL IMAGES FOR AIRBORNE PLATFORMS
"... This paper investigates the application of lossy distributed source coding to high resolution multispectral images. The choice of dis-tributed source coding is motivated by the need for very low encod-ing complexity on satellite or airborne platforms. The data consists of red, blue, green and infra- ..."
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This paper investigates the application of lossy distributed source coding to high resolution multispectral images. The choice of dis-tributed source coding is motivated by the need for very low encod-ing complexity on satellite or airborne platforms. The data consists of red, blue, green and infra
SAR moving targets processing for small airborne platforms
"... This paper presents a methodology to retrieve the full velocity vector of moving targets inducing Doppler-shifts beyond the Nyquist limit determined by the pulse repetition frequency (PRF). The proposed approach exploits the linear dependence (not subject to PRF limitations) of the Doppler-shift wit ..."
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the computational point of view and uses data from a single channel SAR channel, being therefore adequate for use in low resources platforms such as UAVs. 1
TWO-WAY TIME TRANSFER TO AIRBORNE PLATFORMS USING COMMERCIAL SATELLITE MODEMS
"... Time-based communications (TBC) involves the use of an active data channel for time transfer. TBC was demonstrated in 2000 using commercial SATCOM modems for two-way satellite time transfer between static locations. In 2002, testing was conducted with the Air Force Research Lab (AFRL) at Wright Patt ..."
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Cited by 2 (1 self)
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Patterson Air Force Base to demonstrate a TBC implementation from the ground to an airborne platform using standard communications channels and equipment. Algorithms to perform Dynamic Two-Way Time Transfer (DTWTT) have been developed to correct raw time transfer data for platform motion and measurement
DESIGN, FABRICATION AND MEASUREMENTS OF AN S-BAND RADAR IN AN AIRBORNE PLATFORM
, 2014
"... To my family iii ACKNOWLEDGEMENTS This work would have been impossible to finish without the help and encouragement of many people. First, I would like to thank Professor Paul Siqueira, my advisor, for giving me the chance to work on this project. His advice and help have been really important to ma ..."
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To my family iii ACKNOWLEDGEMENTS This work would have been impossible to finish without the help and encouragement of many people. First, I would like to thank Professor Paul Siqueira, my advisor, for giving me the chance to work on this project. His advice and help have been really important to make this happen. I would like to thank Dustin for his bright ideas and his help when building the system and testing it. Thanks to Krzysztof because, without his lessons in the workshop and his advice, this radar would have never been tangible. I cannot forget the antennas ’ guy, thanks Chen for designing them. Thanks Sheila for accompanying me, and the radar, to the hangar. And thank you, Kan and Yang, for your help in the data processing. Finally, a big thanks to my parents. My little adventure in the U.S. and this thesis would have never happened without their unconditional support, thank you for everything. iv
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