Koden MDC-2900, Operation Manual

Page: 153 / 191

Chapter 4 General operation (Menu) MDC-2900 Series
0093129012-06 4-50
RAIN MODE
Selection values: DIFF (Differentiation), CFAR (Constant False Alarm Rate)
There are two modes of DIFF and CFAR for clutter (sea, rain and snow) suppression method.
DIFF (FTC): The clutter is suppressed with combination of GAIN, SEA (Manual, Auto) and RAIN by
using traditional method.
CFAR: Simi-automatic clutter suppression function.
As clutter suppression degree may change by operator, the degree can be changed by adjusting
RAIN.
As it is automatically adjusted, GAIN and SEA become no-operational.
Differently from DIFF, target such as ship etc. will not become smaller.
Refer to “
Reject rain/snow clutter (anti-RAIN)
” (page2-10)
RAIN MAX
Selection values: 0 to 255
This is to set up the maximum value of RAIN knob, when RAIN mode is DIFF.
RAIN knob variable range is determined by difference of RAIN MAX and RAIN MIN.
*Strong rain cloud may not be faded out if the set value is too small.
*Small targets may fade out if the set value is too large.
RAIN MIN
Selection values: 0 to 255
This is to set up the minimum value of RAIN knob, when RAIN mode is DIFF.
RAIN knob variable range is determined by difference of RAIN MAX and RAIN MIN.
*Small targets may fade out if the set value is too large.
CFAR MAX
Selection values: 0 to 255
This is to set up the maximum value of RAIN knob, when RAIN mode is CFAR.
*Strong rain cloud may not be faded out if the set value is too small.
*Small targets may fade out if the set value is too large.
CFAR MIN
Selection values: 0 to 255
This is to set up the minimum value of RAIN knob, when RAIN mode is CFAR.
RAIN knob variable range is determined by difference of CFAR MAX and CFAR MIN.
* Small targets may fade out if the set value is too large.