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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 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.
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.
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 ...
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JMP Pro is intended for data scientists, and has an emphasis on advanced predictive modelling and model selection. [41] JMP Genomics, used for analyzing and visualizing genomics data, [49] requires a SAS component to operate and can access SAS/Genetics and SAS/STAT procedures or invoke SAS macros. [48]
The minitrack interferometer tracking system data were used in combination with the Goddard Range and Range Rate (GRARR) system data to establish the Explorer 36 orbit and to compute operational predictions. The minitrack stations also participated with other stations in mutual visibility events for tracking systems comparison experiments. [10]
The spacecraft was an octagonal right prism 24.5 × 45.7 cm (9.6 × 18.0 in)-diameter terminated on top with a truncated octagonal pyramid on which the laser reflectors were mounted. Appended were four hinged paddles carrying solar cells. Each paddle was 167.6 × 25.4 cm (66.0 × 10.0 in). [1]