Orolia GSG-5 Series, Руководство пользователя с руководством по SCPI, Страница: 328 / 392

Parameter Unit Range Description
a
0
m ±10000 Clock bias measured at t
0
.
a
1
m/s ±100 Clock drift at t
0
.
a
2
m/s² ±10 Rate of clock drift.
At the time t , the clock offset is then calculated as follows:
Δ
t
= t – t
0
bias (meters) = a
0
+
Δ
t
( a
1
+ 0.5 *
Δ
t
* a
2
)
Note
SOURce:CLKMDL commands are accepted only while a scenario is running.
Example
SOUR:SCEN:CLKMDL 10.000000,2000.000000,-10.000000,0.000000
6.3.3.95 SOURce:SCENario:CLKMDL?
Note: This SCPI command is only supported if the Spoofing Range Option is
installed (OPT-SPF license, see "GSG Series Model Variants and Options"
on page 203 .)
Function
The Clock Model command is used in the context of simulating the spoofing of mobile
equipment.
This command is used to query the Clock Model state and its parameters t, bias, t
0
, a
0
, a
1
,
and a
2
. See also: "SOURce:SCENario:CLKMDL" on the previous page .
Command Syntax
SOURce:SCENario:CLKMDL?
Return
t: scenario elapsed time in seconds when the query was handled (and when the bias
was calculated).
bias: clock bias at time t.
t
0
, a
0
, a
1
, a
2
: the current clock model parameters
312 User Manual GSG-5/6 Series Rev. 27
6.3 Command Reference