R&S SMW-K44, User Manual

Page: 38 / 455

Simulation Time Satellite Navigation
38 User Manual 1178.6379.02 ─ 01
Current Leap Seconds (Ref. 1980) ← Leap Second Configuration
Displays the currently used leap second.
Remote command:
[:SOURce<hw>]:BB:GNSS:TIME:CONVersion:LEAP:SEConds
on page 219
Next Leap Second Date ← Leap Second Configuration
Determines the date of the next UTC time correction.
Remote command:
[:SOURce<hw>]:BB:GNSS:TIME:CONVersion:LEAP:DATE
on page 219
Leap Sign ← Leap Second Configuration
The time correction is performed in steps of one second.
One second can be added to or subtracted from the current leap second value.
Remote command:
[:SOURce<hw>]:BB:GNSS:TIME:CONVersion:LEAP:SIGN
on page 219
Date/WN, Tome/TOW, UTC Offset
Displays overview information on the parameters used for the time conversion between
the different navigation standards.
The basis for the time conversion is the UTC. The parameters of each of the navigation
standards are set as an offset to the UTC.
For in-depth configuration, use the "Additional UTC Parameters" on page 38 dialog.
Remote command:
[:SOURce<hw>]:BB:GNSS:TIME:STARt:UTC:DATE?
on page 220
[:SOURce<hw>]:BB:GNSS:TIME:STARt:UTC:TIME?
on page 220
[:SOURce<hw>]:BB:GNSS:TIME:STARt:UTC:OFFSet?
on page 222
[:SOURce<hw>]:BB:GNSS:TIME:STARt:GPS:WNUMber?
on page 221
[:SOURce<hw>]:BB:GNSS:TIME:STARt:GPS:TOWeek?
on page 221
[:SOURce<hw>]:BB:GNSS:TIME:STARt:GPS:OFFSet?
on page 222
(etc. for the other GNSS systems)
Additional UTC Parameters
Sets the time conversion parameters required for switching from one timebase to
another, for example GPS to UTC. The time conversion is performed according to the
following equation:
t
UTC
= (t
E
- delta_t
UTC
) modulo 86400 , where:
●
delta_t
UTC
= delta_t
LS
+A
0
+A
1
(t
E
-T
ot
+604800(WN-WN
ot
))
●
t
E
= t
GPS
or t
Galileo
Reference Week/Date, Reference Time of Week ← Additional UTC Parameters
Sets the reference data and time per navigation standard.
Remote command:
[:SOURce<hw>]:BB:GNSS:TIME:CONVersion:GPS:UTC:WNOT
on page 222
[:SOURce<hw>]:BB:GNSS:TIME:CONVersion:GPS:UTC:TOT
on page 223
Time Configuration Settings