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The safe integration of unmanned aircraft into the airspace requires reliable systems to keep aircraft separated. Unmanned aircraft will likely have to use horizontal maneuvers, in contrast with manned aircraft collision avoidance systems, which use only vertical maneuvers. Coordination of horizontal maneuvers is much less straightforward than vertical maneuvers because in some situations it is better...
Although originally designed solely for wind retrieval, the QuikSCAT scatterometer has proved to be a useful tool for rain estimation as well. Resolution enhancement algorithms designed for QuikSCAT allow for ultra-high-resolution (UHR) (2.5 km) simultaneous wind and rain (SWR) retrieval. The principle advantage of UHR SWR estimation is that compared to conventional resolution, the higher resolution...
The ASCAT scatterometer measures the backscatter from the ocean surface with which it infers the near-surface wind vector. When rain is present in the observation area the windinduced backscatter is modified by the rain. This paper uses co-located observations from TRMM PR to model the effects of rain on the ASCAT observed backscatter. Two model types are considered, a phenomenological rain model...
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