GSG-54 GPS 8-channel Simulator0 pages

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GSG-54
GPS 8-channel Simulator
• Versatile 8-channel GPS signal
generator with pre-confi gured test
scenarios
• Easy-to-use and intuitive
• Fully operational via front-panel
• Multiple interfaces for remote
control
• Stand-alone, compact and portable
bench-top chassis
• 3GPP A-GPS Standards-based
testing
• Affordable and powerful
The GSG-54 is a GPS Constellation Simulator that expands on
the features available with the GSG-L1 one-channel GPS signal
generator without the complexity and cost of other multi-channel
GPS simulators. The GSG-54 provides a wide-range of capabilities
for in-line production testing, including navigational fi x and
position testing, while offering ease-of-operation and extremely
fast test cycles. It also benefi ts engineering and development
organizations for integrating GPS receivers into their devices.
Easy to Use
The easy-to-use GSG-54 is an 8-channel GPS constellation
simulator. The user can confi gure scenarios on-the-fl y without the
need for external PC and without pre-compilation phase. Using
the front panel the user can swiftly modify parameters such as user
position and time and can defi ne the scenario through a set of predefi
ned antenna and atmospheric models, as well as trajectories
and events.
Flexibility
GSG-54 comes with built-in support for multipath simulation and
a set of trajectories (static, circles, rectangular according to 3GPP
TS 25.171) and allows the user to upload their own trajectories in
NMEA standard format. The user can upload their own ephemeris
data in standard RINEX format or re-use the default data for any
time periods. GSG-54 can be controlled via a network connection
over Ethernet. A USB and GPIB interface is also available.
Suitable for Testing Timing Receivers
Besides the variety of built-in navigation/positioning tests, the
GSG-54 is also suited for accurate testing of timing GPS-receivers.
The GSG-54 can be equipped with an ultra-high-stability OCXO
timebase for precision timing of the satellite data, and to emulate
the actual atomic clocks in the satellites, there is an input for
external synchronization from a 10 MHz reference from e.g.
a Cesium or Rubidium clock. A built-in 1-pps output, which is
synchronized to the generated satellite data, allows comparison
with the 1-pps signal from the timing receiver under test.
The Affordable Test Solution
The GSG-54 is a perfect fi t for a wide-variety of test cases including:
„hƒnTest of simulated movements (user trajectories).
„hƒnTest of receivers’ sensitivity to loss of satellites, multi-path, and
atmospheric conditions.
„hƒnFast production test of connectivity and sensitivity
(conducted or over-the-air).
„hƒnProduction test of positioning receivers accuracy.
„hƒnTest of timing receiver accuracy.
„hƒnTest of receivers’ dynamic range.