Signal Processing Functions - Furuno FAR-2018-MARK-2 Operator's Manual

FOREWORD
Advanced fishing specifications
The following radar plotter features will be available by updating to the software for advanced fish-
ing specifications and installing the RP board to the processor unit. Consult your local dealer re-
garding the software update and RP board installation.
• A variety of plotter-related functions.
(Memory capacity increase for own and other ship's track, ship's track color customize function,
mark/line function, memory capacity increase for origin mark, origin mark list, etc.)
• TT/AIS symbol customize function.
• Enhanced dynamic range for a more complete EAV (Echo Average) function.
• Compatible with the RCU-031 control unit that is specially designed for fisheries.
For details about advanced fishing specifications, see the operator's manual (OME-36521).

Signal processing functions

This radar has the signal processing functions listed in the table below.
Function
Interference rejector
Echo stretch
Echo averaging
Automatic clutter elimination
Noise rejector
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information about RoHS conformity declarations.
Disclosure of Information about China RoHS
With regards to China RoHS information for our products, please refer to our website
(www.furuno.com).
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Description
Suppresses interference by other radars.
Interference received simultaneously from multiple
radars may be difficult to reduce.
Enlarges target echoes, especially small echoes.
Suppress interference, sea clutter and rain clutter be-
fore using echo stretch, to prevent enlargement of
unwanted echoes.
The radar samples echoes with each scan.
Targets that show a large change with each scan are
judged as clutter and are reduced to display only
echoes from legitimate targets.
Discriminates clutter from the radar echo, then reduc-
es the clutter automatically.
Reduces white noise then improves the on-screen
S/N ratio by processing the weighted moving aver-
age filter for the received echoes in the range direc-
tion. Use this function with caution. Weak target
echoes may disappear from the screen or the range
resolution may worsen.
Reference
See
section 1.22
See
section 1.23
See
section 1.24
See
section 1.25
See
section 1.26