Download SEAMCAT 2.1.0 User Manual - old version

Transcript
Description
Symbol
Type
Unit
Comments
Unchecked
Correlation distance
D or S
Path azimuth
Degrees
Horizontal angle for the location of the Wr
respect to the It, see Annex 3.
If constant, the Wr’s location will be on a
straight line. If not, the location of the Wr
will be on an angular area.
D or S
Path distance factor
Distance factor to describe path length
between the It and the Wr. This factor will
it
Rmax
to obtain the
be multiplied by
coverage area.
Therefore, the trialled distance between It
it
and Wr will be Rmax *Path factor. E.g. if
user enters a distribution 0…1, then the
it
distance will be between 0 and Rmax .
If the path factor is constant, the Wr will be
located on a circle around the It.
Coverage radius calculation
mode
Three different modes of calculation of the
coverage radius are available, as described
in Annex 6.
However the noise-limited network option
is not available for this link, due to the fact
that the sensitivity of the wanted receiver is
not defined.
The user should check the consistency of
this parameter with the sensitivity, so that if
a receiver is placed at given distance such as
the maximum coverage radius, the received
power is higher than the Sensitivity for a
reasonable percentage of time (availability).
Table 11: Interfering link/It-Wr path/Uncorrelated case
3.8.2
Tab sheet Interfering link/It-Wr path/Propagation Model
The second tab sheet is used for selection of the propagation model. Choose a propagation model by consulting section
2.4.3 and Annex 7.
3.9
Window Interfering link/It-Vr path
Two tab sheets are available:
•
relative location
•
propagation model
31