Case K44 Spécifications télécharger pdf (Page 52)

User InterfaceGPS and Assisted GPS

38Operating Manual 1171.5248.12 ─ 15

In "Full Configuration" mode, however, the simulation time is not limited to the almanac

week.

The indication is only available if data source "Real Navigation Data" is selected.

SCPI command:

[:SOURce<hw>]:BB:GPS:NAVigation:ALManac:BEGin:WNUMber on page 87

[:SOURce<hw>]:BB:GPS:NAVigation:ALManac:BEGin:DAY on page 86

[:SOURce<hw>]:BB:GPS:NAVigation:ALManac:BEGin:MONTh on page 86

[:SOURce<hw>]:BB:GPS:NAVigation:ALManac:BEGin:YEAR on page 87

[:SOURce<hw>]:BB:GPS:NAVigation:ALManac:END:DAY on page 87

[:SOURce<hw>]:BB:GPS:NAVigation:ALManac:END:MONTh on page 88

[:SOURce<hw>]:BB:GPS:NAVigation:ALManac:END:YEAR on page 88

Time Of Almanac (TOA)

Indicates the time of almanac, i.e. the exact time up to the second to which the navigation

data refers.

The indication is only available if data source "Real Navigation Data" is selected.

SCPI command:

[:SOURce<hw>]:BB:GPS:NAVigation:ALManac:TOEPhemeris on page 88

Date

Enters the date for the simulation. In "Auto SV Selection" mode, only values within the

almanac GPS week are valid.

In "Full Configuration" mode, however, the simulation time is not limited to the almanac

week.

The parameter is only available if data source "Real Navigation Data" is selected.

The date format is: DD.MM.YYYY

SCPI command:

[:SOURce<hw>]:BB:GPS:NAVigation:SIMulation[:BEGin]:DATE

on page 90

GPS Mean Time

Enters the exact time for the simulation. The used time zone is Greenwich Mean Time.

The parameter is only available if data source "Real Navigation Data" is selected.

While calculating an offline GPS signals with R&S WinIQSIM2, there is a limitation for

the values allowed for the second's subfield. Since a GPS subframe is 6 seconds long,

to align the waveform generation to the start of a GPS subframe, only values that are

aligned to 6 are allowed. i.e. 0, 6, 12, etc.

To generate an offline GPS signal with time of simulation different than these values,

select aMarker Delay .

SCPI command:

[:SOURce<hw>]:BB:GPS:NAVigation:SIMulation[:BEGin]:TIME

on page 92

Satellite Elevation Mask

(R&S SMx/AMU instruments only)

GPS Main Dialog

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Case K44 Spécifications Page 52

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