Simrad ARGUS FMCW 3G, Руководство пользователя

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Radar presentation and video processing | Argus Radar Operator Manual
It is possible to see the window shown in above figure by selecting one of the two transmit-
ter signal presence indicators using the shortcut in the bottom right, in the row under the PPI
area.
Row PPI area
The combination of the four signals is important, as it optimises the ability to view a better
quality image on the PPI in weather conditions such as rain or rough seas.
Thanks to this system and more signals, it is possible to have a wider view of the surrounding
area, monitoring those zones that would otherwise be hidden from various obstructions, such
as funnels and tall masts on some vessels.
The following section describes possible combinations and their characteristics.
It is important to configure the antenna position correctly as well as the alignment between
the range and the azimuth and the adjustement of the input video level, as the two signals,
A/B, will be submitted to the same video processing. It is advisable to use auto processing in
case of clutter from rain or sea.
For other functions on the screen shown in “TXRX interswitch menu (Configuration video
combination)” on page 79, such as “Master/Slave”, “Performance Monitor OFF/ON”, “Power
Boost” and “TXRX Data”, please see more details in “TXRX interswitch menu (standard)” on
page 77.
Tracking and video processing operation in combination and 2 nd PPI mode
When using the additional PPI, the source and targets are the same as those viewed on the
1st PPI, given that the main source is the same as represented in the first transmitter of the
first PPI.
In cases of video combination mode, there are two sources and these are selected in the
configuration window shown in “TXRX interswitch menu (Configuration video combina-
tion)” on page 79. As already mentioned in the previous paragraph, all antenna positioning
considerations and alignments are set in the standard configuration mode in order to have a
correct CCRP.
Video processing is fully split in Additional PPI mode, a double set of controls permits to opti-
mize the detection according to the sensor and its operation mode.
Video processing in combination mode uses only a single control (SEA, RAIN etc..). The same
video processing control is applied to both video sources, only the STC attenuation curves for
the sea control are optimized according to the antenna characteristics (size, height etc…).
Most of these different combination modes are labeled A function B. As mentioned in the
menu window A is the channel connected to TXRX with lower identification number. B is
the one with the higher identification number. Numbers are depending of the connections
enabled by the checkboxes in the same window.