7.2 Antenna Unit
7-26
The figure below shows sea clutter and STC CONT voltage created by averaging the
sea clutter level. For instance, if a strong sea clutter signal ahead is erased by the manual
STC, weaker target echoes behind are also erased. If the STC is adjusted so as to leave
echoes behind, sea clutter signals ahead remain. In such a case, optimum pictures are
obtained on the whole by STC-controlling of sea clutter different by each bearing
according to each bearing.
Fig. 7.2.20 Schematic Diagram of Automatic STC Processing-2
Sea clutter
Average of Sea clutter
STC Control signal
STC Control signal
STC Control signal
STC Control signal
STC Control signal
STC Control signal
STC Level
Time
Far
Mid
Near
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