Generate icon to generate a waveform based on the Constellation and SV ID properties (SV ID does not apply to GLONASS). Alternatively click Control -> Generate to generate the waveform.Click GNSS node, and specify Basic Multi-Satellite Waveform for Capability cell.
Keysight Signal Studio for GNSS will display the following Toolbar Functions and Parameters.
| Generate |
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1. Capability |
2. General |
3. Marker Settings |
4. Scenario Information |
Coupling: Visible with the Capability selection of Basic Single Satellite Waveform and Basic Multi-Satellite Waveform.
Click the Generate icon to generate a waveform based on the Constellation and SV ID properties (SV ID does not apply to GLONASS). Alternatively click Control -> Generate to generate the waveform.
Coupling: Visible with the Capability selection of Basic Single Satellite Waveform.
Click the download icon to download a pre-generated waveform based on the Constellation and SV ID properties (SV ID does not apply to GLONASS). Alternatively click Control and then Download to download the waveform.
Choice: Basic Single Satellite Waveform | Basic Multi-satellite Waveform | Advanced Real-time Signal Generation | Advanced Real-time Signal Generation Pro
Default: Advanced Real-time Signal Generation
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Selects a pre-generated single satellite waveform file and downloads it to the instrument for playback. |
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| Basic Multi-Satellite Waveform | Selects a pre-generated multi-satellite waveform file and downloads it to the instrument for playback. |
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Loads in a scenario file and generates a real-time GNSS signal, or provides continuous real-time scenario generation based on the Scenario Generator node settings. The Scenario Source selection determines whether to use a file or continuous real-time generation. |
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Select the capability of GNSS signal simulation. Basic mode generates and downloads user defined single satellite waveform or multi-satellite waveform to instrument for playback. Advanced mode plays real-time navigation signal based on user selected scenario file or static signal based on satellite settings. Advanced Pro mode plays real-time GPS L1+L5 navigation signal with real-time scenario generation. |
Select the capability of GNSS signal simulation. Basic mode generates and downloads user defined single satellite waveform or multi-satellite waveform to instrument for playback. Advanced mode plays real-time navigation signal based on user selected scenario file or static signal based on satellite settings.
Enter an alpha-numeric waveform file name. The maximum name length is 23 characters.
Default: C:\<Program Files> or <Program Files (x86)>\Keysight\Signal Studio\Global Navigation Satellite System\Applications\Gnss\Scenarios\20130103_Beijing.ags
Coupling: While Navigation is the Simulation Mode, this property is visible when User Scenario File is the Scenario Source
| For Advanced Real-time Signal Generation capability |
select a scenario file for playback in Navigation mode or initialize the satellite channels in Static Test mode. |
| For Basic Multi-satellite Waveform capability | select a scenario file to build the multi-satellite waveform with a particular scenario. |
Range: 0 to Scenario Duration
Default: 0.0
Enter an offset value in seconds with resolution of 0.6s, which indicates the starting position of scenario playback.
Choice: depends on the selected scenario file
Default: GPS
Coupling: Available with Basic Single Satellite Waveform or Basic Multi-Satellite Waveform as the Capability property selection.
Select the constellation of the satellite signal to be simulated.
Choice: Range Based | Equal Power
Default: Equal Power
Select the power control mode for satellites. In Equal Power mode, all satellites will have the same power level. In Range Based mode, power level of each satellite will be calculated based on its pseudorange.
Range: -144 dBm to 0 dBm
Default: -130 dBm
| For Advanced mode |
This property sets a reference power level on instrument's front panel. Power levels of all the satellites and interference tones will be relative to this reference level. It's recommended to set this value to the possible highest power level of individual satellite or interference tone across the test. |
| For Basic modes |
This property sets the power of each satellite for equal power control; sets the power for the satellite which has the maximum power in the first record of the scenario for range-based power control. |
For basic modes, the Amplitude setting in the Instrument node is coupled with this parameter automatically. However, when directly connected to an M9381A configuration, due to hardware limitations, there will be +20 dB power offset in the instrument in cases where a large number of satellites are employed. To check the power offset, send the SCPI query POWER:OFFSET?.
Range: 0 dB to 100 dB
Default: 0 dB
Enter the attenuation value of the external attenuator if connected to the instrument's RF port.
Range: 0 to 50 MHz
Default: 4 MHz
Enter the sample rate for the single and multi-satellite waveform.
Range: 0.001 to 1000 s
Default: 6s for single satellite waveform, 60s for multi-satellite waveform
Enter the waveform length in second.
Display the total sample points of the waveform.
Choice: Start | Pulse per second | Pulse per millisecond
Default: Start
Set the marker1 source for single and multi-satellite waveform.
Choice: Start | Pulse per second | Pulse per millisecond
Default: Pulse per second
Set the marker2 source for single and multi-satellite waveform.
Choice: Start | Pulse per second | Pulse per millisecond
Default: Pulse per millisecond
Set the marker4 source for single and multi-satellite waveform.
This read-only cell displays the title of the current scenario file.
This read-only cell displays the user's comment for the scenario.
This read-only cell displays the constellations included in the scenario.
This read-only cell displays the SV IDs in view during scenario playback.
This read-only cell displays whether the scenario is static or dynamic. For old scenarios that do not contain type info in the header, it will display N/A.
This read-only cell displays the initial longitude in degrees of the selected scenario and updates with a change in scenario file.
This read-only cell displays the initial latitude in degrees of the selected scenario and updates with a change in scenario file.
This read-only cell displays the initial altitude in meters of the selected scenario and updates with a change in scenario file.
This read-only cell displays the simulated date and time of the selected scenario and updates with a change in scenario file.
This read-only cell displays the duration of the selected scenario in <HH:mm:ss> format and updates with a change in scenario file.
This read-only cell displays the version of scenario generator that is used for creating the scenario. The scenario generator is included with the N7609C software advanced capability.
