Usage
Import a custom signal
Once you have prepared your xml file and compiled your shared library, you are ready to use the custom signal inside Skydel.
The first thing to do is adding the Custom Signal to the scenario. To do so, under the Custom Signals settings click on Add Signal... Give it a meaningful name and browse for the signal's XML file.
IMPORTANT: Make sure that the shared library is located as specified by the XML file.
As shown below, you should see a summary of your custom signal definition. You have the option to change the power offset of your custom signal, compared to the reference level of the constellation of your signal. Note: The reference level of each constellation is shown in the settings page “Settings --> Global --> Signal Level”.
Add the custom signal to the simulation
Now that the signal is known, it can be added to a GNSS output. To do so, go to the “Settings --> Output” page, and click on “Edit” of one of the available outputs.
NOTE: in order to add a Custom Signal to an output:
A signal of the same constellation must first be added to the same output (Galileo E1 in this example)
The bandwidth of the output must cover your custom signal.
It is interesting to know that you can control the signal transmission per satellite by going on the Signals tab under the attached constellation. You can either enable/disable the original and custom signals transmitted by each satellite.
It is also possible to apply multipaths on the custom signals in the usual multipath interface. The created custom signals are automatically added to the list:
Start the simulation
Before starting a simulation, the performance of the simulator can be tested with the custom signals, exactly as for the legacy signals. A score higher than 1.1 confirms that a simulation can be started with the current configuration.
Then, you can start a simulation which will be using your custom signal. You will be able to see the spectrum of your custom signal like this:
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