Shielding Area Data File Format - Furuno WR2120 Operator's Manual

6. SHIELDING AREA DATA FILE FORMAT

The file format of shielding area uses a comma separated CSV
file. The first row is the header and below the first row will be
the parameters. Shielding area file name must be
"Clip_RainMap.csv.
Header (reference and formula values):
Each column of header (red frame of column 1 to 4, row 2 in Figure 6.2) indicates an individual parameter
for the shielding area file.
Column 1: Distance value (m) used for shielding area range (distance) row cells calculation in "csv" file.
Column 2: Radar latitude in "Clip_RainMap.csv" file must be entered as a decimal number, north latitude is
positive and south latitude is negative.
Column 3: Radar Longitude in "Clip_RainMap.csv" file must be entered as a decimal number, east
longitude is positive and west longitude is negative.
Column 4: Radar altitude, entered in meter units for the "Clip_RainMap.csv" file.
[Note: Latitude, longitude, and altitude have to exactly match the values entered in "Radar Site Location"
settings in RainMap]
Parameter (values used in shielding calculations):
Let's consider the column direction of parameter (green frame of column 1 to 720, row 3 to 11 in Figure 6.2)
as azimuth direction, shown as 720 columns of 0.5 [deg] units. Rows denote individual distances (range)
direction and then the scan range of radar is divided by distance resolution and is the number of rows. It
needs to consider beam width when generating shielding area from digital elevation map.
1 1
2 100
3
4
5
Row
6
7
8
9
10
Range direction: (7-2) x100=500[m]
11
2 3
34.741 135.354
Latitude Longitude
Range direction distance (m)
20 20
Figure 6.2: csv file structure
Image of Radio wave shielding area
Column
4 5 6
Header
10
Height
Azimuth Direction: (5-1) x 0.5=2[deg]
20 20
Distance Direction: 500 [m]
Azimuth Direction:
Shielding Elevation: 20 [deg]
51
Figure 6.1:
- 719 720
Parameter
2 [deg]