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Synthetic-aperture sonar (SAS) is a form of sonar in which sophisticated post-processing of sonar data is used in ways closely analogous to synthetic-aperture radar. Synthetic-aperture sonars combine a number of acoustic pings to form an image with much higher along-track resolution than conventional sonars.
The Satellite Control Network consists of satellite control centers, tracking stations, and test facilities located around the world. Satellite Operations Centers (SOCs) are located at Schriever Space Force Base [2] near Colorado Springs, Colorado, and various other locations throughout the continental United States. These SOCs are staffed ...
The instrumentation consisted of one 2.5-arc-minutes and one 4.5-arc-minutes Full width at half maximum (FWHM) modulation collimator, as well as proportional counters sensitive over the energy range from 1.5 to 10-keV. The effective area of each collimator was about 225 cm 2. The aspect system provided information on the orientation of the ...
First Track sensor stereo track of a dim boosted target First stereo post boost tracking of midcourse target. March 2011. 9 March 2011; Second Aegis Readiness Assessment Vehicle Targeting STSS satellites acquired and tracked its target until re-entry 15 March 2011; Second full-course tracking during U.S. Missile Defense Agency's (MDA) Aegis launch
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Track initiation is the process of creating a new radar track from an unassociated radar plot. When the tracker is first switched on, all the initial radar plots are used to create new tracks, but once the tracker is running, only those plots that couldn't be used to update an existing track are used to spawn new tracks.
Marine radars are used by ships for collision avoidance and navigation purposes. The frequency band of radar used on most ships is X band (9 GHz/3 cm), but S band (3 GHz/10 cm) radar is also installed on most oceangoing ships to provide better detection of ships in rough sea and heavy rain condition.
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