LabSat 3 Wideband Bedienungsanleitung

LabSat 3 GNSS Simulator

User Manual

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Contents

Introduction........................................................................................................................................... 4

How does it work? ..................................................................................................................... 4

Components .......................................................................................................................................... 5

LabSat 3 Front............................................................................................................................ 5

LabSat 3 Rear ............................................................................................................................. 5

LabSat 3 media ...................................................................................................................................... 6

LabSat 3 file formats .................................................................................................................. 6

LabSat 3 SD Card ........................................................................................................................ 6

LabSat 3 500GB Hard Disk Drive.................................................................................................. 6

LabSat 3 Label............................................................................................................................ 6

Quick start guide.................................................................................................................................... 7

Menu Layout.......................................................................................................................................... 8

Replay operation in detail ...................................................................................................................... 9

Record operation in detail.................................................................................................................... 10

Navigating the LabSat HDD file layout................................................................................................... 11

Battery operation and charging ............................................................................................................ 12

Battery fitting, removal and handling ................................................................................................... 13

External reference clock input .............................................................................................................. 14

Digital channels.................................................................................................................................... 14

Expansion connector............................................................................................................................ 15

CAN Bus............................................................................................................................................... 16

DIGITIZE mode ......................................................................................................................... 16

LOG FILE mode......................................................................................................................... 16

Filtering CAN frames ................................................................................................................ 17

Digital in/out ....................................................................................................................................... 18

Remote control.................................................................................................................................... 18

LabSat device registration .................................................................................................................... 18

Ordering information ........................................................................................................................... 19

Optional accessories ................................................................................................................ 19

Converting LabSat scenarios ................................................................................................................. 20

Recommended media .......................................................................................................................... 21

Upgrading LabSat 3 firmware ............................................................................................................... 21

How to upgrade the firmware .................................................................................................. 21

SatGen software .................................................................................................................................. 22

Why use SatGen software?....................................................................................................... 22

Troubleshooting guide ......................................................................................................................... 23

LabSat 3 specifications ......................................................................................................................... 24

Connector pin data............................................................................................................................... 25

Expansion port 36 way MDR type connector......................................................................................... 25

LabSat 3 dimensions............................................................................................................................. 26

Contact information............................................................................................................................. 27

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Introduction

LabSat 3 is a lightweight, portable record and replay system for GNSS testing. With the ability to record real

world GNSS signals directly to SD card or HDD storage, the LabSat 3 is a simple to use, fully stand-alone

system. Recorded signals can be replayed back by LabSat 3 in the Lab enabling development and testing of

most types of GNSS equipment. Alternatively SatGen software can also be used to create simulated GNSS

signals from map or user defined trajectory. Despite its simplicity, the LabSat 3 product range supports a

number of powerful features for use in industries such as automotive, sports and aerospace including dual

RF channels for multiple constellation testing, dual CAN Bus recording, inertial sensor logging and battery

powered operation.

Additional features:-

→Available for GPS, GLONASS, Galileo, BeiDou, QZSS

→Simple to use one touch recording

→Record or replay using external USB hard drive

→RS232, Digital & Dual CAN interface

→Remote control over Ethernet

→External 10MHz Reference input

→OCXO option

→OEM version available for system integrators

→Digital input for event marking or 1PPS recording

→Adjustable attenuation (0 –31dBm)

→On-board GNSS receiver for monitoring RF during record and replay

The LabSat 3 line-up includes a number of variants to suit a range of testing requirements. These are:

Version

Description

RLLS03-3RP

Triple RF channel record & replay system with CAN Bus / RS232 / Digital IO

RLLS03-3P

Triple channel replay only system with CAN Bus / RS232 / Digital IO

RLLS03-2RP

Dual RF channel record & replay system with CAN Bus / RS232 / Digital IO

RLLS03-2P

Dual channel replay only system with CAN Bus / RS232 / Digital IO

RLLS03-1RP

Single RF channel record & replay system

RLLS03-1P

Single RF channel replay only system

How does it work?

GNSS stands for Global Navigation Satellite Systems and is a general term that covers satellite positioning

constellations belonging to different countries around the world. These include, among others, the United

States ‘GPS’, the Russian ‘GLONASS’and the Chinese ‘BeiDou’ systems. LabSat 3 is capable of recording and

then replaying the raw radio signals that are transmitted by the various constellations of satellites. LabSat 3

receives the signal from an antenna just like a standard GNSS receiver but instead of processing each of the

received signals to calculate a position fix, LabSat 3 samples and stores the antenna signal at very high

speed. When the stored antenna signal is replayed by LabSat 3 into a standard GNSS receiver such as a

portable navigation system, the receiver will see essentially, the same signal that it would see if it were

connected to an antenna including movement, delays and multipath effects. This makes LabSat 3 invaluable

for recording moving scenarios such as driving through a city in a car. One of the benefits of using a

recorded test signal is consistency. For example, if testing of a product involves going for a drive each time

the firmware is updated, the satellite positions and atmospheric conditions will be different for every drive.

If the drive is recorded once with LabSat 3, the recorded signal can be replayed over and over on the bench

saving hours of drive time and with the knowledge that the conditions will be the same for each replay.

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Components

LabSat 3 has been designed to be portable and simple to use allowing virtually anyone to gather field test

signals without in depth training. Recording GNSS signals is as simple as positioning the antenna and

pressing one button. The sunlight-readable graphic display gives instant feedback of record status and can

show live histogram data to verify satellites in view during recording. Back at the Lab, recorded signals can

be replayed at the push of a button for repeatable, reliable testing.

LabSat 3 Front

LabSat 3 Rear

Name

Type

Description

POWER

2 pin LEMO

8 to 30 VDC Power Supply input

HOST USB

USB ‘A’

Connection of USB Storage devices

ETHERNET

RJ45

Remote access and control

USB

USB ‘B’

NMEA data output

RF OUT

SMA

Output RF signal

RF IN

SMA

Input RF signal (RP variants only)

REF

SMA

10MHz Reference Clock Input

Expansion

36 Way MDR

1PPS, Digital I/O*, CAN*, RS232*

*Model dependent –available as options.

Display

Keypad

SD Card

Slot

Media

LED

Indicator

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LabSat 3 media

LabSat 3 file formats

LabSat 3 uses I&Q binary data and runs the FAT32 file format. LabSat 3 files are recorded into a folder with

separate 2GB data files which will run sequentially when replayed. The folder description GPS_000 will

contain several files with the name format GPS_000_000.ls3. These will automatically increment.

LabSat 2 (.ls2) and LabSat (.bin) files will need to be converted to this format to play on LabSat 3. The

LabSat Scenario Converter Software is supplied on the LabSat 3 Hard Disk Drive (HDD). Please see the

section ‘Converting LabSat Scenarios’.

LabSat 3 SD Card

The 32GB SD card included with the LabSat 3 system includes the following files:

→LabSat 3 sample scenarios

→GPS_000 - Static 5 minute GPS scenario

→GLO_001 - Static 5 minute GLO scenario

→BDS_001 - Static 5 minute BDS scenario

→LabSat 3 quick start video

→SatGen simulation software video

→LabSat 3 quick start guide PDF

LabSat 3 500GB Hard Disk Drive

The LabSat 3 500GB hard disk includes the following:

→LabSat 3 scenario library description PDF

→LabSat 3 quick start video

→SatGen simulation software video

→LabSat scenario converter utility

→LabSat 3 scenario library –a worldwide selection of LabSat 3 scenario files with supporting KML and

Google Earth jpeg picture files.

The LabSat 3 HDD uses USB3.0 for fast data transfer and is formatted to FAT32.

LabSat 3 Label

The LabSat 3 label is located on the left side toward the rear. Please quote your serial number in all

correspondence.

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Quick start guide

In addition to this guide, a short LabSat 3 Quick Start video is available on the LabSat 3 SD card and also on

the LabSat 3 HDD.

Example of Replay - using the included SD card with preloaded scenario.

Briefly press the power button to power up the LabSat 3. Connect from the RF output on the rear of the

LabSat 3 to your GPS system antenna input. With the SD card inserted, use the UP/DOWN arrows to select

a file. Press the PLAY button to start replay.

LabSat 3 contains an on board GNSS receiver that allows monitoring of the RF signals during record or

replay. To show a live histogram of satellite signal levels detected by the on board receiver, press the OK

button during replay. Press the OK button again to return to the replay status display. During replay,

pressing the PLAY button will halt replay and return to the file list.

Example of Record –Recording your own file to an SD card (RP variants only)

To record a new file, connect the LabSat 3 antenna to the RF input on the rear of the LabSat. Ensure that

the antenna has a clear view of the sky, press the REC button to start recording. Press the REC button again

to stop recording. While recording, if the SD card becomes full, recording will stop automatically. During

recording, pressing the OK button will switch the display to show a live histogram view of the satellite levels

being received by the on-board GNSS monitor. Pressing the OK button again will return to the record

status display.

During recording, while using battery power, the GNSS monitor display will automatically revert to the

record display after a short period to conserve battery power. This power save feature can be switched off

but it is recommended to be left active for maximum battery life.

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Menu Layout

File

→Info - Display file info for selected file.

→Delete –Delete selected file Yes/No.

→Format SD/USB –Erase and Format SD/USB Yes/No.

Constellation

→GPS/GAL –Tick to select GPS/Galileo constellation for recording.

→GLONASS –Tick to select GLONASS constellation for recording.

→BeiDou –Tick to select BeiDou constellation for recording.

→2Bit –Record with 2bit quantisation when single constellation is selected.

Play

→Loop –selected file will replay continuously.

→Pause Time –Defines the pause time between each replay.

→From –Specify a time in the scenario to replay from.

→For - Specify how long the scenario will replay for.

Record

→For -Specify how long the LabSat 3 will record for.

Setup

→Display –Adjust display contrast and backlight brightness.

→RF Test –Outputs RF test signal.

→Power Save –When selected, will power down display backlight and internal monitor during recording.

→CLK REF

→Internal - As the default setting LabSat 3 will use it internal reference clock.

→External 10MHz –Allows the user to connect a 10MHz reference signal on the REF input.

→Time –Configure internal clock using UTC time from internal GNSS monitor or set manually.

→LAN

→DHCP –Enable/Disable DHCP.

→IP Address –Set the IP address assigned to LabSat 3.

→SUBNET MASK - Set the Subnet mask assigned to LabSat 3.

→DEFAULT GATEWAY - Set the default gateway for the network.

→Digital

→CH1

→1PPS –Record 1PPS signal from internal GNSS monitor (disable power save).

→RS232 –Record RS232 signal.

→CAN CH1 –Record CAN Bus channel 1.

→DIGI –Record state of DIGI input signal.

→CH2

→1PPS –Record 1PPS signal from internal GNSS monitor (disable power save).

→RS232 –Record RS232 signal.

→CAN CH2 –Record CAN Bus channel 2.

→DIGI –Record state of DIGI input signal.

CAN

→Record Type

→Digitize –When selected the CAN data will be digitized and integrated into the .LS3 file.

→Log File –When selected the CAN data will be logged into a separate .txt file.

→CH1

→Baud rate –Enables the user the set the desired baud rate.

→Silent Record - Determines whether or not the LabSat sends an acknowledge pulse during

recording.

→CH2

→Baud rate –Enables the user the set the desired baud rate.

→Silent Record –Determines whether or not the LabSat sends an acknowledge pulse during

recording.

About –Contains information specific to the LabSat e.g. serial number & firmware version.

Exit –Return to file list.

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Replay operation in detail

LabSat 3 uses SD card or HDD memory for storage and playback of GNSS data. It is important to note that

Class 10 or higher cards must be used to sustain the transfer speeds required. Racelogic recommend

SanDisk Extreme Class 10 cards for best performance.

The 500GB USB Hard Disk Drive (HDD) supplied contains a selection of pre-recorded scenarios from around

the world. These scenarios can easily be copied to the SD card for replay. The HDD supports either USB2.0

or USB3.0. For optimum data transfer performance using a PC that supports USB3.0 for file transfer from

HDD to SD card is recommended.

The RF OUT connector is a 50Ω output which can be connected directly to the antenna input of the GNSS

receiver being tested. The RF OUT connector of LabSat 3 is DC blocked internally so almost any device can

be connected to this port. When a file is selected for replay, the LabSat will configure constellation

frequencies and digital channels automatically before starting replay. If a triple constellation file is selected

for replay on a single channel LabSat, all three constellations will be displayed before replay allowing the

user to select one.

During replay, pressing OK will show a live histogram of satellite levels detected by the internal GNSS

receiver. The internal receiver currently only supports GPS and GLONASS constellations. This has no effect

on the ability of LabSat 3 to record or replay BeiDou signals. When displayed, the UP/DOWN keys switch

between GPS and GLONASS monitor modes. Please note that when switching between GPS and GLONASS

display modes, the internal receiver will take some time to re-acquire satellite signal levels. In the case of

GLONASS signals, it may take over a minute to show the satellite signal information.

LabSat 3 comes with an internal 31dB attenuation capability. To increase the attenuation press the up

arrow, this will increase the attenuation by 1dB. The down arrow will decrease the attenuation level.

Attenuation

Display

Attenuation

Controls

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2015

Record operation in detail

LabSat 3 uses SD card and HDD memory for storage and playback of GNSS data. It is important to note that

Class 10 or higher cards must be used to sustain the transfer speeds required. When recording two

constellation types, the data rate is approximately 8.2MB (Mega Bytes) per second. To ensure that data is

collected without error, the card should be able to sustain 10MB per second. Spare cards and HDDs may be

purchased from Racelogic.

It is important that cards are formatted as FAT32. LabSat 3 is able to format cards and HDDs in FAT32 with

the optimum configuration for high speed recording. When a card or HDD is formatted by LabSat 3, it will

also carry out a performance test to determine whether or not the media can sustain the required

bandwidth and inform the user if this is not the case.

For record capable systems, the LabSat will be supplied with a magnetic mounting GNSS antenna. The

antenna is an active device with approximately 28dB of gain. The LabSat provides a 2.85V DC bias for

antenna power on the centre pin of the RF IN connector. It is also possible to use third party antennas

providing they are compatible with the 2.85V bias. If connecting LabSat to an antenna which requires a

higher bias voltage (e.g. 12v), the antenna bias must be supplied by the user and an appropriate DC block

(such as DCB from http://gpsnetworking.com/attenuators.asp) must be inserted at the LabSat 3 RF IN

connector to avoid damage to the LabSat.

There are a number of GNSS systems currently in operation or in a test phase. These operate on 3 main

frequency bands. These are:-

Depending on the model, LabSat 3 will have 1, 2 or 3 RF channels. This allows recording of 1, 2 or 3

frequency bands so, for example, a 2 constellation LabSat 3 may record the band containing GPS L1/Galileo

E1 and the band containing GLONASS L1 simultaneously. Recording of the desired constellations is

configured in the CONSTELLATION menu. In this menu, the user can tick up to three of the desired

constellation groups (depending on version). If only one constellation is ticked, then an additional option

for 2bit will be available to allow 2bit quantized recording for the selected constellation.

Once the constellations are configured, exit the menu and press the REC button to begin recording. A new

file will be created each time recording starts. The file name used corresponds to the constellations

selected. For example, if GPS and GLONASS are selected for recording, the file created will be GPSGLO_nnn

where nnn is a number that increments with each new recording. Details of the LS3 file format are

available on request from Racelogic.

During recording, pressing the OK button will switch the display to show satellite levels for either GPS or

GLONASS satellites. In this display mode, the up and down arrow keys will toggle between GPS or GLONASS

constellations. BeiDou constellation is not currently supported by the internal monitor but BeiDou B1

signals can still be recorded and replayed.

To maximize battery life during recording, LabSat 3 has a power save mode which is enabled by default I n

the setup menu. Power save mode recognizes when running from battery power and will dim the display

backlight and power-down the internal GPS/GLONASS monitor after 30 seconds of user inactivity.

If recording from passive antennas such as the Maxtenna M1516HCT-SMA GPS/GLONASS antenna, enabling

the power-save mode will also provide the highest possible sensitivity by ensuring that unused modules

within LabSat 3 are switched off.

Frequency Band

Constellations

1575.42MHz

GPS L1, Galileo E1, QZSS, SBAS

1602MHz

GLONASS L1

1561.098

BeiDou B1

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