Quanta Extra - Performance specifications

This chapter describes all sensors and navigation system performance specifications.

Note

Performance specifications are specified in RMS unless otherwise stated.

Inertial Measurement Unit specifications

Quanta Extra integrates an Apogee grade MEMS based tactical grade Inertial Measurement Unit (IMU). Designed by SBG Systems, this IMU benefits from a full temperature range compensation to ensure optimal performance in all applications. The IMU also delivers a consistent performance in challenging vibration conditions.

Parameter	Gyroscope specification	Accelerometer specification
Sensor range	±200 °/s	±10 g
Random walk	0.012 °/√h	0.017 m/s/√h
In run bias Instability	0.05 °/h	7 µg

GNSS receiver specifications

Item	Specification	Remarks / condition
Signal tracking	GPS: L1C/A, L2P, L2C, L5 GLONASS: L1OF, L2OF, L3 GALILEO: E1, E5a, E5b Beidou B1l, B1C, B2a, B2l, B3I QZSS L1C/A, L2C, L5 SBAS Integrated L-band	Simultaneous tracking of all signals and constellations
Horizontal position accuracy	Single point: 1.5 m SBAS: 1.0 m RTK : 0.6 cm + 0.5 ppm	RTK enabled by default
Velocity accuracy	0.03 m/s
Dual antenna heading accuracy	0.3°	0.5m baseline
	0.15°	1m baseline
	0.075°	2m baseline
Time to first fix	Cold start < 45 s
Output frequency	5Hz PVT
Output frequency	1Hz RAW measurements
Differential corrections input	RTCM V2.x, V3.x, NTRIP CMR V2.0, CMR+	Sent on any serial port

Note

GNSS performance depends on atmospheric conditions, baseline length, GNSS antenna, multipath conditions, satellite visibility and geometry

UAV performance

Typical performance in UAV flight conditions with a good GNSS reception.

Heading performance may depend on dynamic conditions (single antenna), or on baseline for dual antenna.

Positioning mode	Position accuracy (m)		Velocity Accuracy (m/s)		Attitude accuracy (°)
Positioning mode	Horizontal	Vertical	Horizontal	Vertical	Roll / pitch	Heading
SP	1.0	1.0	0.02	0.01	0.01	0.1 (single antenna / baseline > 0.5m) 0.06 (baseline > 1.0m)
RTK	0.01 + 0.5ppm	0.015 + 1ppm	0.01	0.01	0.008
PPK	0.01 + 0.5ppm	0.015 + 1ppm	0.01	0.01	0.005	0.025

Marine / Low dynamic performance specifications

Typical performance in marine applications, with dual antenna heading.

GNSS outage	Positioning mode	Position accuracy (m)		Velocity Accuracy (m/s)		Attitude accuracy (°)
GNSS outage	Positioning mode	Horizontal	Vertical	Horizontal	Vertical	Roll / pitch	Heading
No Outage	SP	1.0	1.0	0.02	0.01	0.01	0.02 (baseline > 2m) 0.01 (baseline > 4m)
	RTK	0.01 + 0.5ppm	0.015 + 1ppm	0.01	0.01	0.008	0.02 (baseline > 2m) 0.01 (baseline > 4m)
	PPK	0.01 + 0.5ppm	0.015 + 1ppm	0.01	0.01	0.005	0.01
10s	SP	1.2	1.1	0.03	0.015	0.01	0.03 (baseline > 2m) 0.02 (baseline > 4m)
	RTK	0.17	0.1	0.02	0.015	0.008	0.03 (baseline > 2m) 0.02 (baseline > 4m)
	PPK	0.03	0.02	0.015	0.01	0.005	0.015
30s	SP	5.0	2.0	0.15	0.075	0.015	0.05 (baseline > 2m) 0.04 (baseline > 2m)
	RTK	4.0	0.75	0.15	0.075	0.012	0.05 (baseline > 2m) 0.04 (baseline > 2m)
	PPK	0.15	0.05	0.04	0.03	0.008	0.025

Heave Performance

	Real Time Heave	Remark
Range	50 meters
Period	0 to 20 s
Accuracy	5 cm or 5 %	Whichever is greater
Mode	Real time, auto tuning	On board computation

Land performance specifications

Typical performance with odometer aiding.

Valid in single or dual antenna.

GNSS outage	Positioning mode	Position accuracy (m)		Velocity Accuracy (m/s)		Attitude accuracy (°)
GNSS outage	Positioning mode	Horizontal	Vertical	Horizontal	Vertical	Roll / pitch	Heading
No Outage	SP	1.0	1.0	0.02	0.01	0.01	0.03
	RTK	0.01 + 0.5ppm	0.015 + 1ppm	0.01	0.01	0.008	0.02
	PPK	0.01 + 0.5ppm	0.015 + 1ppm	0.01	0.01	0.005	0.01
10s	SP	1.1	1.0	0.03	0.02	0.01	0.04
	RTK	0.05	0.05	0.02	0.02	0.008	0.03
	PPK	0.02	0.02	0.015	0.01	0.005	0.015
60s	SP	1.5	1.3	0.03	0.02	0.015	0.06
	RTK	0.5	0.3	0.02	0.02	0.012	0.06
	PPK	0.1	0.05	0.02	0.015	0.008	0.025

Timing and Synchronization performance

The Quanta extra can be used as a source of time and offers multiple synchronization mechanism:

Internal timestamping of all data
PPS (Pulse per second)
NTP (Network Time Protocol)
PTP (Precise Time Protocol)

The accuracy of the clock and different synchronization mechanisms offered on the Quanta extra is as follows:

Parameter	Error	Comment
Timestamp	< 200 ns
NTP accuracy	10 ms	NTP limitations
PTP accuracy	< 1 μs
PPS accuracy	< 1 μs (jitter < 1 μs)
Drift in dead reckoning	1 ppm	Drift of the internal clock measured over 1 hour. The drift is not completely linear with time so will be slightly higher for longer GNSS outages.

For more details on the time and synchronization you can check our knowledge base article.

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