Galileo testingWhereCamp 2016 Berlin

3 November 2016, Germany

M. Bavaro, European Commission JRC

Motivation:• Context

‒ GSA coordinating two test campaigns‒ Mass-market receivers tests carried out by ESA‒ Professional receivers tests supported by EC JRC‒ Confidentiality of the results

• Objectives‒ Supporting early introduction of Galileo in COTS receivers‒ Assessing Galileo readiness to fully exploit the system

potentialities‒ Getting recommendations from the Galileo user community

Precision receivers tests 2014/2015

• Record & Playback• Interference analysis in the

EMSL, time differed zero baseline

• Simulated• Multiple frequency

interference analysis, time differed zero baseline

• Live tests• Static multipath

characterisation using post-processing and bespoke SDR receivers

• Dynamic signal tracking performance analysis

Test categories and KPIs

Anechoic chamber

Interference

GPS + GAL E1/E5/E6

Anechoic Chamber Tests with GSS9000

Calibrated, noise free output (from the simulator back panel) guarantees nominal reception power (i.e. -130 dBm for L1 C/A) at the antenna allowing use of ambient noise

Simulator Reference Visibility

• Triple frequency GPS+Galileo scenario starting on March 16th 2014

• 400 minutes divided in 4 interference time-slots: E5a, E5b, E6 and E1

• RFI ramps shown below:

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-1 M

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E5a/L5 E5b E6 E1/L1

E1/L1 Chirp 40 MHz 100 µs -70 dBm-1

0 M

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Cent

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Nominal Position Accuracy• Static, No Interference, Simulated Scenario• Multi-frequency, GPS+Galileo D-GNSS• Replay in anechoic chamber and/or conducted mode

Max Min AVG

Mean pos. [m]GPS 0.410 0.010 0.126GAL 0.370 0.005 0.119COMB 0.240 0.002 0.063

STD pos. [m]GPS 2.380 0.160 1.287GAL 1.380 0.040 0.620COMB 1.120 0.030 0.440

Sat. avail.[%]GPS 95.00 60.00 86.75GAL 96.00 76.90 84.73COMB 95.00 68.50 85.90

Live SIS Land Mobile Scenario• Ispra Site• Reference track

15 km long• 13 March 2015

PV Accuracy– Live Land Mobile• Multi-frequency, GPS+Galileo D-GNSS• Novatel SPAN reference system• Galileo-only solution not possible on March 13th, 2015

Max Min AVG

Mean pos. [m]GPS 5.80 0.60 1.82COMB 2.80 0.68 1.34

STD pos. [m]GPS 7.90 1.30 3.12COMB 7.90 1.20 3.10

Mean vel. [cm/sec]GPS 1.70 0.59 1.12COMB 1.80 0.66 1.17

STD vel. [cm/sec]GPS 77.00 59.00 68.20COMB 76.00 56.00 67.50

Pos. fix avail. [%]GPS 97.00 85.00 92.20COMB 95.00 85.00 91.00

• Extensive campaign with seven precision receivers successfully completed

• Some mature products, other under development• Fruitful interaction with all manufacturers, all

extremely supportive• Residuals of GAL E1 smaller than those of GPS L1• Combined (GPS+GAL) PV better both in nominal and

interference scenarios

Conclusions