Racelogic LabSat 2 Manuel utilisateur
LabSat 2 User Manual
•01 - LabSat 2 Introduction
•02 - LabSat 2 Operation
•03 - LabSat 2 Hardware overview
•04 - LabSat 2 PC Requirements
•05 - LabSat 2 Installing Software
•06 - LabSat 2 Connecting USB
•07 - LabSat 2 Software Overview
•08 - LabSat 2 Software Settings
•09 - LabSat 2 Recording GNSS Data
•10 - LabSat 2 Recording Event Inputs
•11 - LabSat 2 Replaying GNSS Data
•12 - LabSat 2 SatGen v2 Software
•13 - Converting LabSat scenarios
•14 - LabSat 2 Interface Modules
•15 - LabSat 2 Video Syncronisation
•16 - LabSat 2 Advanced functions
•LabSat 2 - Troubleshooting
•LabSat 2 - Updating the Firmware
•17 - LabSat 2 Software Development Kit (SDK)
•18 - LabSat 2 Inventory and optional extras
•19 - LabSat 2 PIN OUTS
•20 - LabSat 2 Technical specifications
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01 - LabSat 2 Introduction
The LabSat 2 is a dedicated Global Navigation Satellite System (GNSS) signal generator with RF record and playback
facilities, enabling real world GNSS RF testing to take place in the laboratory. The LabSat is small and rugged, allowing
it to be used in the field to continuously record the Global Positioning System (GPS), Galileo, BeiDou Navigation
Satellite System (BDS) and GLONASS RF signals in a digital form which can then be replayed at a later date.
LabSat 2 is ideal for almost any kind of GNSS development, e.g. GPS/Galileo/BDS/GLONASS engines, GNSS enabled
Smartphones, Portable Navigation Devices (PND), tracking systems and much more. It is also very well suited to
production line testing as it can represent a real world test as well as a carefully simulated scenario.
LabSat 2 works with the GPS/Galileo L1 (1575.42MHz) signal, BDS B1 (1561.098 MHz) signal and GLONASS L1
(Channels 06 to -7 or approximately 1606 MHz down to 1598 MHz) signal and has no limit to the number of satellites
that can be logged.
In addition to recorded data, the Labsat 2 can replay simulated, GPS L1 and or GLONASS L1 scenarios generated
using the optional Racelogic SatGen v2 software.
Real world GNSS effects can be seen in test scenarios
• Multipath
• Drop-outs
• Tree coverage
• Adverse terrain effects
• Atmospheric effects
Ability to replay data allows repeatable testing of GNSS receiver capabilities such as:
• Sensitivity – Tracking and Acquisition
• Time To First Fix (TTFF) – Cold, Warm and Hot Start
• Position Accuracy and Repeatability
• Tracking Accuracy and Repeatability
https://en.racelogic.support//Product_Info/LabSat_2/LabSat_2_User_Guide/01_-_LabSat_2_Introduction
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• Reacquisition Time
https://en.racelogic.support//Product_Info/LabSat_2/LabSat_2_User_Guide/01_-_LabSat_2_Introduction
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02 - LabSat 2 Operation
Depending on model type, the LabSat 2 is able to record RF data directly from an active antenna and store the data on
a hard drive or generate GNSS RF signals from data stored on a hard drive.
There are three RF ports on the LabSat 2 these are marked CLOCK IN, RF IN, RF OUT.
The RF IN socket is used to connect an active GNSS antenna when recording data. During recording, the RF OUT port
is switched off to ensure that it does not interfere with the recorded data.
https://en.racelogic.support//Product_Info/LabSat_2/LabSat_2_User_Guide/02_-_LabSat_2_Operation
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The RF OUT port is used to connect the LabSat 2 to the GNSS system under test. The output signal of the LabSat 2 is
at a nominal level of -83 dB when replaying previously recorded data. Using the PC software, it is possible to attenuate
the LabSat 2 output by approximately 24 dB giving a signal power range of -83 dBm down to -107 dBm. Adjustment to
the output attenuation is made using the slider controls which is accessed from the RF Attenuation tab in the LabSat
software. With the slider positioned to the left on the screen, attenuation is 0 dB meaning 0 dB of attenuation on the
nominal -83 dBm output. As the slider is moved to the right, in 0.5 dB steps, the attenuation increases, and the RF
output level is reduced accordingly. The tick boxes allow for each channel to be muted simulating GNSS dropout.
When replaying RF data into a GNSS engine, it may be necessary to increase attenuation in order for the GNSS engine
to acquire satellite data.
It is also important to note when replaying previously recorded GNSS data, that it may be required to cold start
the GNSS engine under test. This is because GNSS engines often rely on downloaded almanac data to determine
which satellites to look for at a given date and time. A cold start of the GNSS engine should clear any stored almanac
data, forcing the GNSS engine to look for all satellites.
https://en.racelogic.support//Product_Info/LabSat_2/LabSat_2_User_Guide/02_-_LabSat_2_Operation
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Connector Description Comment
DATA High speed USB 2.0 link Transfers data to and from PC
GPS MONITOR GPS Monitor - NMEA Outputs NMEA from internal GPS
engine during Replay and Record
PWR 12 Volt DC Power Supply Input to LabSat 2
AUX 5 Pin LEMO
Digital In / Out – For connection of
Interface Modules such as
RLLSIM01
RF OUT GNSS Simulation RF Output GNSS signal output during replay
mode
RF IN GNSS Active Antenna Input Used when recording GNSS signals
CLOCK IN 10 MHz Reference External reference clock input
DIGITAL I/O 26 Way D-Type Connector
1 – PPS Output ( refer
to Connector Pin Data section for
further pin out details)
LEDs Description Comment
PWR Power status Green LED indicates power good
PLAY Replay Indication Indicates that LabSat 2 is in Replay
Mode
REC Record Indication Indicates that LabSat 2 is in Record
Mode
BUFFER Memory Buffer status
Indicates buffer status. If status
reaches F (Full Buffer) during record
or replay, this indicates that the PC
cannot maintain the required
transfer rate. Recorded data may
be corrupt if full buffer occurs during
record
https://en.racelogic.support//Product_Info/LabSat_2/LabSat_2_User_Guide/03_-_LabSat_2_Hardware_overview
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04 - LabSat 2 PC Requirements
The LabSat 2 uses a USB 2.0 HI-SPEED interface for data transfer. When recording RF signals, the sustained USB
transfer rate is in excess of 8Mbytes/s. It is therefore important to ensure that all intensive background tasks such as
anti-virus scans are switched off to avoid interruption of data transfer to and from the hard drive. It may also be required
to configure the laptop power settings to ensure maximum processor speed when using battery power as it is common
for laptop PCs to reduce their processing speed when running without an external power supply.
Minimum recommended specification for the desktop or laptop PC to be used with the LabSat 2.
• Intel®Core2™ Duo 1.8 GHz
• 2 GB RAM
• 250 GB Hard Drive
• Microsoft Windows®XP Pro or Windows Vista®Business or Windows®7 Professional, Windows®8 Pro
Minimum recommended specification for the desktop or laptop PC to be used with SatGen v2 software.
• Intel®Core™ i5 2.27 GHz
• 4 GB RAM
• 250 GB Hard Drive
• Microsoft Windows Vista®Business or Windows®7 Professional, Windows®8 Pro
https://en.racelogic.support//Product_Info/LabSat_2/LabSat_2_User_Guide/04_-_LabSat_2_PC_Requirements
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05 - LabSat 2 Installing Software
Configuration and control of the LabSat 2 is performed using the supplied LabSat Software. Before using your LabSat 2
it is necessary to install the software which also contains the USB drivers required for communication. Once this has
been done the USB cables should be connected to the LabSat 2 prior to it being powered, this allows the configuration
of the USB connection from LabSat 2 to the computer.
When you connect to the LabSat 2 via USB for the first time you will be required to install USB drivers, please see the
section ‘Connecting LabSat 2 USB’ below.
Insert the supplied CD-ROM into the CD drive of your computer. An installation dialog will automatically appear; follow
the onscreen instructions to complete the installation of the setup software.
After installation the CD-ROM can be removed and an icon should have appeared on your desktop that will allow you to
start the LabSat software.
The LabSat 2 software can also be downloaded from here.
https://en.racelogic.support//Product_Info/LabSat_2/LabSat_2_User_Guide/05_-_LabSat_2_Installing_Software
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06 - LabSat 2 Connecting USB
• Connect the USB A to B cable between the LabSat 2 and the computer. If you intend to use the GNSS monitor
connect the Mini USB as well.
• The computer should now recognise the presence of a new USB device; after a short period of time a ‘Found New
Hardware Wizard’ window will appear.
Click Next to continue the installation.
• Click ‘next’, with the option ‘Install the software automatically (Recommended)’ Selected. (See image right)
• At the last window click ‘Finish’ to complete the installation.
• This process will then repeat a second time beginning with step 2.
Now connect the LabSat 2 to its power supply. Your computer should now recognise the unit, and the USB connections
will be recognised by the LabSat Setup software when started. Double-click the LabSat software icon to start the
software
See the Troubleshooting section if the installation process fails at any stage.
https://en.racelogic.support//Product_Info/LabSat_2/LabSat_2_User_Guide/06_-_LabSat_2_Connecting_USB
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