Case K44 Spécifications télécharger pdf (Page 69)

User InterfaceGPS and Assisted GPS

55Operating Manual 1171.5248.12 ─ 15

Duration of Assistance Data

Sets the duration (in seconds) of the GPS Assistance Data.

SCPI command:

[:SOURce<hw>]:BB:GPS:ADGeneration:DURation on page 119

Resolution of Assistance Data

Sets the resolution (in seconds) of the GPS Assistance Data.

SCPI command:

[:SOURce<hw>]:BB:GPS:ADGeneration:RESolution on page 124

Generate Almanac File …

Opens the "Generate Almanac File" window for saving the generated Almanac File.

The name of the file is specified in the "File name" entry field. To save the file, press the

"Save" button.

The almanac file is generated either in a GPS standard almanac file .rs_al format (see

table below) or as standard Yuma formatted file .rs_yuma and can be therefore used

as the main almanac source for GPS.

Parameter Unit

SatID -

e dimensionless

toa sec

delta_i semi-circles

OMEGADOT semi-circles/sec

SV Health boolean

SQRT(A) meters

OMEGA0 semi-circles

M0 semi-circles

w semi-circles

af0 seconds

af1 sec/sec

The generated almanac file is conformed to the format appended to standards 3GPP

34.108 v.8.0.0 and 3GPP TS 51.010-1v.7.7.0.

The file lists all possible satellites, available from the source Select Almanac File.

See chapter 2.8.7, "Generating Assistance Data", on page 23 for description of the work-

flow for generation of assistance data.

SCPI command:

[:SOURce<hw>]:BB:GPS:ADGeneration:ALManac:CREate on page 119

Generate Ionospheric File …

(enabled with option Assisted GPS (R&S-K65) only)

Assistance Data Generation

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 164 165

Pas de commentaire

Case K44 Spécifications Page 69