Satellite transmissions classically use constant amplitude linear modulation schemes, such as M-state phase shift keying (M-PSK), because of their high robustness to amplifier non-linearities. However, other modulation formats are interesting in a satellite transmission context. For instance, non-linear modulations such as Gaussian minimum shift keying (GMSK) present a higher spectral efficienc...

The data exploitation system described within is being designed to take advantage of the existence of terabytes (or more) of data sets that have been sent down from various Air Force satellites that can be used to detect previously unknown anomalies that occurred while the satellites were operational. This wealth of information can then be used and exploited to build more reliable and robust fu...

Autonomous Underwater Vehicles (AUVs) are revolutionizing oceanography. Most high-endurance and long-range AUVs rely on satellite phones as their primary communications interface during missions for data/command telemetry due to its global coverage. Satellite phone (e.g., Iridium) expenses can make up a significant portion of an AUV’s operating budget during long missions. Slocum gliders are a ...

Attitude motion reconstruction of the Technological NanoSatellite TNS-0 #2 during last month its mission is presented in paper. The satellite was designed to test performance data transmission via Globalstar communication system. This system successfully provided telemetry (even atmosphere re-entry) up an altitude 156 km. Satellite attitude for this phase analyzed nominal represents passive sta...

To determine whether loggerhead turtles (Caretta caretta) nesting in southeastern USA exhibit polymorphic foraging strategies, we evaluated skin samples for stable isotopes of carbon (dC) and nitrogen (dN) from 310 loggerheads from four locations on the east coast of Florida and epibionts from 48 loggerheads. We found a dichotomy between a depleted dC cluster and an enriched dC cluster. Epibion...

In 2004 the Turin Polytechnic started the PiCPoT project that led to the development of a nanosatellite. PiCPoT had been completely built by students of several engineering departments. The main constraint of this project was its cost, so every system was built using Commercial Off-The-Shelf (COTS) components and radiationhardened by design. Since most components use C-MOS technology particular...

Bonelli’s Eagle dispersal L. Cadahía et al. Short communicationEstimating the onset of dispersal in endangered Bonelli’s Eagles Hieraaetus fasciatus tracked by satellite telemetry: a comparison between methods LUIS CADAHÍA, 1,2 * PASCUAL LÓPEZ-LÓPEZ, 1,3 VICENTE URIOS 1 & JUAN J. NEGRO 2 1 Estación Biológica Terra Natura (Fundación Terra Natura – CIBIO), Universidad de Alicante, Apdo. correos 9...

Movements of two female one-humped camels in central Australia were tracked using satellite telemetry between March 1986 and July 1987. During that time both animals travelled a minimum distance of over 1000 km within a radius of 125 km for one animal, and 200 km for the other. However, their movements were quite punctuated and both animals spent periods of up to several months in relatively sm...