Spectracom GSG-5 series, Руководство пользователя с руководством по SCPI

Страница: 305 / 378

<integer>[,<satID>]
Parameter
TIME
– As TIME argument only IMMediate is supported.
satID – Satellite identifier of the satellite to duplicate
Decimal [-999.999,999.999] – Range offset in meters
Decimal [-99.999,99.999] – Range Change rate in meters/interval
Decimal
[0.0,600.0] – Range Interval in seconds
Decimal [-99.9999,99.9999] – Doppler offset in meters
Decimal [-99.9999,99.9999] – Doppler Change rate in meters/sec/interval
Integer [0,600] – Doppler Interval in seconds
Decimal
[-30.0,6.0] – Power offset in meters
Decimal [-30.0,0.0] – Power Change rate in dB/interval
Integer [0,600] – Power Interval in seconds
satID – Optional satellite identifier for which satellite that is to be replaced by the duplicate
Examples
SEND:
SOURce:SCENario:DUPlicate IMM,G3,1.0,2.0,3.0,4.0,5.0,6,7.0,-
8.0,9,G9
6.3.3.85 SOURce:SCENario:DUPlicate[n]
Function
This command creates a duplicate of the satellite in given channel number (the second argu
ment) using the provided multipath parameters. The parameters include the Duplicate Satellite
Channel Number, Range Offset, Range Change, Range Interval, Doppler Offset, Doppler
Change, Doppler Interval, Power Offset, Power Change and Power Interval.
When the scenario is running, the optional argument n can be used to specified the target chan
nel where the duplicate will be placed. If the target channel already contains a satellite, that
satellite is disabled and replaced by the duplicate.
Notes
Multipath satellites require 60 seconds to be created and are introduced at modulo 30 second
intervals. The GSG can only introduce 4 duplicate satellites at a time and at a maximum rate of
one satellite every two seconds. Multipath, SBAS and interference/jamming channels cannot be
the duplicated. Note that excessive changes to Range or Doppler may result in Doppler shifts
6.3 Command Reference
CHAPTER
6
•
User Manual GSG-5/6 Series Rev. 26
289