Orolia GSG-5 Series, User Manual With Scpi Manual, Page: 79 / 392

be in the scenario. ‘1’ would mean that we will duplicate the satellite in the first pos-
ition when scenario starts.
Range
Offset : The Range (or: Code) offset in meters. For a multipath signal this value
should typically be positive, meaning that the travelled distance of the signal will be
longer than that of the original or line-of-sight (LOS) signal.
Change : Change in range offset, given in meters / Interval
Interval : Specify change interval in seconds to the nearest tenth second.
Doppler
Offset : The offset in Doppler in centimeters/seconds
Change : Change in Doppler offset, given in centimeters/seconds/Interval
Interval : Specifying change interval in seconds.
About Range Offset and Doppler
The code (range offset) and Doppler are connected 1-to-1 and cannot be controlled sep-
arately in a conflicting manner. For example, a Range Change of 0.019 m/s with Interval ‘1’
has the same effect as specifying Doppler to 1.9 cm/s and leaving all Change/Interval set-
tings at 0.
When both code, and range, and possible change/intervals are specified, the cumulative
effect of all things specified will be simulated.
To simulate, e.g., a carrier phase offset that is static relative the LOS signal, please specify
the code offset (to, e.g., 0.095 meter) at start and set all Code and Doppler settings to
zero.
Random CP
The carrier phase offset can also be randomized on startup by setting the ‘Multipath ran-
dom CP” to ‘On’ in the GSG menu (or ‘RandomMpCP’ keyword in the configuration file).
Power
Offset : The offset in output Power in dB
Change : Change in Power offset, given in dB / Interval
Interval : Specifying change interval in seconds. If the interval is zero, the offsets will
be set at startup and remain static.
3.5 "Select" Menu
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