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The Octantis 3, OCT3-NS7700T, is a third generation, high-performance, Rugged Dual Antenna GNSS-aided MEMS-based Inertial Navigation Systems. The dual antenna GNSS Compassing configuration ensures uninterrupted heading performance in static and dynamic conditions. This makes OCT3-NS7700T an ideal choice for pointing and navigation applications. Engineered with Aeron’s exclusive Inertial Measurement Unit (IMU), featuring 3-axis low-noise accelerometers and low-drift gyroscopes, this system sets a new standard in tactical class performance.

 

Our in-house characterized IMU sensing elements undergo meticulous compensation for temperature drifts, mis-alignment, non-linearity, and other errors across dynamic operating ranges. The OCT3-NS7700T integrates a proprietary parameter estimation engine leveraging a multi-modal Kalman filter, powered by a high-speed processor architecture, ensuring superior performance in demanding applications.

 

The on-board Kalman Filter based sensor-fusion delivers low-drift position, velocity, and attitude estimations even in GNSS-denied conditions, operating at high update rates. Ruggedized to meet MIL-STD-704D, MIL-STD-810G, and MIL-STD-461E/F standards, the system guarantees reliability in challenging environments.

 

With versatile interfaces for data capture, external odometer/air data input, and integration with other GNSS systems, the OCT3-NS7700T offers flexibility. Its built-in low-noise magnetometer serves as a redundant heading source in GNSS-denied or poor visibility conditions.

 

The model features a multi-frequency (L1/L2/L5 (IRNSS/NavIC), multi-constellation GNSS receiver with multiple channels and unparalleled signal sensitivity. Resistant to radio frequency interference, the built-in GNSS receiver safeguards against intentional jamming and spoofing.

Product Features

Provides accurate heading information in static as well as dynamic conditions reducing dependency on magnetometer.

Octantis has Aeron’s own IMU system incorporating best in class (1 deg./hr. gyro bias instability) MEMS sensors offering exceptional GPS denied performance.

Integrated L1, L2 and L5 (GPS, GLONASS, GALILEO, IRNSS/NavIC) GNSS Receiver with RTK positioning capability.

Equipment designed to meet MIL-standard requirements for power supply, EMC, and harsh environmental conditions.

GNSS receiver level safeguard from intentional jamming and spoofing providing more resilient positioning.

A wide array of interface options and supported protocols over 2xRS232, 2xRS422, Ethernet, CAN and 1PPS from GNSS.

Features RTK based precision positioning with 1 cm position accuracy for robotics, autonomous mobility, precision surveying using unmanned vehicles.

Provides accurate attitude and heading performance essential for stabilization applications.

Delivers 1 % DT (CEP) performance in GNSS denied condition with external odometer speed aiding.

Technical Specifications

  • Accelerometer
  • Angular Rate
  • Magnetometer
  • Barometer
  • Attitude
  • Heading
  • Position Accuracy
  • Gnss/gps
  • Electrical Specifications
  • Communication Interfaces
  • Mechanical
  • Complied Qualifications
Range
±16 g
Bias Instability
19 μg
Noise Density
19 μg/√Hz
VRW
0.014 m/sec/√Hz
Range
±450 °/s
Bias Instability
0.5°/hr
Noise Density
0.0015 °/sec/√Hz
ARW
0.08°/√Hz
Range
±8 gauss
Noise Density
0.002 gauss/√Hz
Range
300 - 1250 hPa
Accuracy
0.02 - 0.9 hPa
Roll Range
±180°
Pitch range
±90°
Roll ,Pitch Accuracy (RMS Levels)
0.06° (static/ low dynamic), 0.1° (dynamic)
Angle Resolution
< 0.01°
Heading Range
±180°
Heading Accuracy
0.5°(1σ)with magnetometer, 0.3°(1σ) with single antenna GNSS in dynamic conditions, 0.1°(1σ) with dual antenna @ 1.0 m antenna separation, 0.02°(1σ) with dual antenna @ 5.0 m antenna separation
Horizontal Position
0.8 cm CEP with RTK, 1.5 m CEP Under good GNSS availability, 1 m CEP With SBAS, <1 % (1σ) DT with odometer aiding
Vertical Position
< 2 cm with RTK, 3 m(1σ) with GNSS, 2 m(1σ) with SBAS
Velocity
0.03 m/s 1σ ( Under good GNSS availability)
Type
GPS L1CA/L1P/L1C/L2P/L2C/L5, GLONASS G1/G2/G3, P1/P2, BeiDou B1i/B2i/B3i/B1C/B2a/B2b/AceBOC, GALILEO E1BC/E5a/E5b/E6BC/AltBOC, QZSS L1CA/L2C/L5/L1C/L6, NavIC (IRNSS) L5
TTFF Cold start
60 sec
Re-acquisition
30 Sec
Update Rate
upto 10 Hz
Time Accuracy
60 sec (99%)
Connector
TNC Socket x 2 (GNSS)
Input Voltage
12VDC to 32 VDC
Power Consumption
< 9 W
Connector
Main Connector (GK2YAR-PDMUF00-000L), Auxiliary Connector (GKAYAR-P19UC00-000L), TNC Connector (122210 Amphenol RF) TNC Threaded Connectors
Interfaces
RS-232 (CH1 isolated) Up to 921600 baudrate, RS-232 (RTK input isolated) Up to 460800 baudrate, RS-422 (CH1 and CH2 isolated) Up to 921600 baudrate, Ethernet (isolated) 100 Mbps, CAN (isolated) 250 Mbps
Update Rate
200 Hz Navigation data (Configurable), 500 Hz IMU data (Configurable)
Digital GPIO
2 inputs (Isolated), 2 outputs (Isolated)
Output Parameters
Euler Angles (Heading, Pitch, Roll), Altitude,ECEF Quaternion, Position, Velocity, Acceleration, Angular Rate
Data Format
NMEA ASCII, Binary, J1939
External Inputs
Speed, Velocity, Position, Altitude, Heading, Magnetometer
Size
138 (L) x 115 (W) x 56 (H) mm (Tolerance ±0.5 mm)
Weight
950 ±20 gms
Fixation Bolts
M4 metric
Operating Temperature
-40 to +65°C
Storage Temperature
-55 to +85°C
Survival Shock
Up to 40g
Viberation
0.04 g^2/√Hz
IP Protection
IP65
EMI/ EMC
As per MIL-STD-461F
Power Supply Protection
As per MIL-STD-1275E
Environmental Test
As per MIL-STD-810G and JSS-55555

Applications

Documents & Softwares

Q & A

Does Octantis 3 support RTK?

Yes, Octantis 3 supports centimeter positioning with RTK.

How does Octantis 3 NS7700T resolve heading?

Octantis 3 uses dual antenna GNSS.

User Manual