Pattern
Description
The Pattern
object defines a radiation pattern visualization
for a transmitter or receiver.
Creation
You can create Pattern
objects by using the pattern
object
function of the Transmitter
or
Receiver
object.
Properties
Size
— Size of radiation pattern plot
1000000
(default) | numeric scalar
Size of the radiation pattern plot, specified as a numeric scalar in meters. This value represents the distance between the antenna position and the point on the plot with the highest gain.
Data Types: double
Colormap
— Colormap for coloring pattern plot
'jet'
(default) | predefined colormap name | M-by-3 matrix
Colormap for coloring the pattern plot, specified as a predefined colormap name or an M-by-3 matrix of red, green, blue (RGB) triplets that define M individual colors. For more information on the colormap names, see map.
Data Types: double
| string
| char
Transparency
— Transparency of pattern plot
0.4
(default) | scalar in the range [0, 1]
Transparency of the pattern plot, specified as a scalar in the range [0, 1]. A value
of 0
means the plot is completely transparent, and a value of
1
means the plot is opaque.
Data Types: double
VisibilityMode
— Visibility of graphic relative to its parent
'inherit'
(default) | 'manual'
Visibility of the graphic relative to its parent, specified as
'inherit'
or 'manual'
. This visibility mode
determines the visibility of this graphic in the
object relative to its parent graphic.
The parent graphic of the satelliteScenarioViewer
Pattern
object is its corresponding satellite.
'inherit'
— Inherit visibility from the parent graphic. The visibility of the graphic matches the parent visibility.'manual'
— Do not inherit visibility from the parent. The visibility of the graphic is independent of the parent visibility.
Data Types: char
| string
Object Functions
Examples
Visualize Radiation Pattern of Transmitter Antenna on Satellite
Set up the satellite scenario.
startTime = datetime(2021,2,12,13,30,0);
stopTime = startTime + hours(5);
sampleTime = 60; %seconds
sc = satelliteScenario(startTime,stopTime,sampleTime);
Create a satellite, ground station, transmitter, and receiver.
sat = satellite(sc,1e7,0,0,0,0,0); gs = groundStation(sc,"Latitude",30,"Longitude",74); tx = transmitter(sat,"Frequency",3e9); rx = receiver(gs);
Visualize the scenario in the satellite scenario viewer.
viewer = satelliteScenarioViewer(sc);
Plot the radiation pattern of the transmitter antenna.
pat = pattern(tx);
Point the satellite at the ground station. The pattern rotates to reflect the new orientation of the antenna.
pointAt(sat,gs);
Increase the visual size of the radiation pattern.
pat.Size = 3000000;
pat.Colormap = "parula";
Version History
Introduced in R2021b
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