3.8  Applied Operations
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y y
[3]  AUTO Dynamic Range 
 
•  When the automatic sea clutter suppression mode and the automatic rain / snow clutter suppression 
mode are in use, the dynamic range is automatically controlled. 
•  When the automatic sea clutter suppression mode is in use, this function improves gain by 
widening the dynamic range of only areas where sea clutter is strong and narrowing the dynamic 
range of areas where sea clutter is not detected. 
•  When the automatic rain / snow clutter suppression mode is in use, this function improves gain by 
widening the dynamic range of areas where sea clutter and rain / snow clutter are strong and 
narrowing the dynamic range of the other areas. 
3 
•  Land videos become obscure when the automatic rain / snow clutter suppression mode is in use. 
  Off    : Does not control the dynamic range automatically.    (Standard setting) 
    The dynamic range is set in the same manner as when the manual sea clutter 
    suppression mode or the manual rain / snow clutter suppression mode is in use. 
  On    : Automatically controls the dynamic range. 
 
 
[4] Process Switch 
 
•  This function sets a specific area and switches the video process mode between the inside and 
outside of the area. 
•  In [5] 2nd Process Mode
, set the second video process mode for the area outside the boundary. 
•  In radar video processing (PROC) mode switching (④  lower left of the display on page 2-18), set 
the first video process mode for the area inside the boundary. 
•  Gain at a distance can be improved by supp
•  There a e methods fo
ressing near sea clutter through the correlative process. 
r  two  r setting an area. 
  Off      : Disables the Process Switching function.    (Standard setting) 
  Range Fix    : Sets a boundary at a constant range from the center. 
      Set the boundary range in [6] Process Switch Range. 
      The specific area turns out to be a circle with the own ship’s position as 
   the center. 
  AUTO    : Automatically sets a specific area. 
      The area subject to many clutter returns is inside the boundary, and the 
      area less subject to clutter returns is outside the boundary. 
 
 
5]  2nd Process Mode[  
 
•  Set the second video process mode for the o side of a spec fic area. ut   i
•  This function is enabled when    Range Fix    or    AUTO    is selected in [4] Process Switch. 
 
 mo
Video process des. 
  PROC Off    :  is mode in general. Select th
  3Scan CORREL    : Select this mode when many rain / snow clutter returns are 
   detected. 
  4Scan CORREL    : Select this mode to highlight targets while suppressing sea 
clutter 
   returns. 
  5Scan CORREL    : Select this mode to detect small targets hidden by sea clutter 
   returns. 
  Remain      : Select this mode when own ship yaws wildly. 
  Peak Hold      : Select this mode to detect small targets of which detection 
        probability is low. 
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