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User InterfaceGPS and Assisted GPS

58Operating Manual 1171.5248.12 ─ 15

Generate UTC File …

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

Opens the "Select UTC" File window for saving the generated UTC file.

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

"Save" button.

The generated UTC file is a file with extension .rs_utc.

The file contains all standard UTC parameters (SatID, A_0, A_1, delta_t_LS, t_ot,

WN_t, WN_LSF, DN, and Delta_t_LSF) that are necessary to transform GPS time to

the normal UTC time.

The generated UTC file contains one row per satellite (maximum 9) that was assigned in

the "Assistance Data Generation" menu.

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:UTC:CREate on page 126

Generate Acquisition File …

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

Opens the "Select Acquisition File" window for saving the generated acquisition file.

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

"Save" button.

The generated Acquisition file is a file with extension .rs_acq.

This file consists of one ore more rows, each corresponding to the Receiver Referenced

GPS Time of Week (GPS TOW). The number of generated rows depends on the settings

made for in the "Assistance Data Generation" dialog and is calculated as follow:

Number Of Generated Rows = "Duration Of Assistance Data" / "Resolution of Assistance

Data"

Each row includes several sequential Acquisition Blocks; each block comprises the

parameters listed in table below.

The number of the acquisition blocks depends on the "Number Of Satellites" (maximum

9) that was assigned in the "Assistance Data Generation" menu.

The generated navigation 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.

Parameter Unit

SatID -

Doppler (0

order term)

Doppler (1

order term)

Hz/sec

Doppler Uncertainty Hz

Code Phase chips

Integer Code Phase -

GPS Bit Number -

Assistance Data Generation

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 164 165

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