Inertial Navigation Systems

With ubiquitous Unmanned Aerial Vehicles (UAV’s) getting adopted into a constantly increasing number of civil and military applications, operation capabilities are getting more sophisticated. Needs now extend further than just operating Beyond the Line Of Sight (BLOS). Remote operations for applications such as border patrol, aerial surveillance, and specialized missions require that users maintain an uninterrupted connection with a UAV for data transmission, and navigational aid. Due to the overall complexity of BLOS UAV operations, market competitors attempt to provide various solutions to customers by attracting them with a range of features related to their particular use case. A crucial role-player for a safe and successful mission is the GPS-Aided Inertial Navigation System (INS). For state-of-the-art UAVs, they are commonly crammed with costly equipment, and losing it may cause unwanted consequences. That alone puts top priority on choosing a reliable GPS-Aided INS. Besides exceptional performance, a GPS-Aided INS must meet weight and price expectations. For aerospace applications, extra weight is costly, but it is important to make sure that the trade off for weight is worth the cost of the unit. 

MODEL
CheetahNAV
INS-U
INS-B
INS-P
INS-BU
INS-D
INS-DL
INS-DU
INS-DM
Single or Dual Antenna Single Antenna Single Antenna Single Antenna Single Antenna Dual Antenna Dual Antenna Dual Antenna Dual Antenna
Tactical Navigation System GPS-Aided INS with Air Data Computer Basic Single GNSS Antenna Inertial Navigation System Professional Single GNSS Antenna Single Antenna u-blox GNSS Inertial Navigation System Dual GNSS Antenna Inertial Navigation System Low Cost Dual GNSS Antenna Inertial Navigation System Dual Antenna u-blox GNSS Inertial Navigation System Dual GNSS Antenna Inertial Navigation System
Heading Accuracy 3 MIL (INS-B); 1 MIL (INS-D) 0.6° static / 0.3° dynamic 1° static / 0.1° dynamic 0.4° static / 0.1° dynamic 0.6° static / 0.3° dynamic 0.08° (2m baseline) / 0.15° (1m baseline) 0.2° (2m baseline) / 0.4° (1m baseline) 0.2° (2m baseline) / 0.4° (1m baseline) 0.08°
Position Accuracy 1cm (RTK), 2.5cm (PPP), 60cm (SBAS) 1cm (RTK) 1cm (RTK), 2.5cm (PPP), 60cm (SBAS) 1cm (RTK), 2.5cm (PPP), 60cm (SBAS) 0.5cm (PPK), 1cm (RTK), 60cm (SBAS) 1cm (RTK), 2.5cm (PPP), 60cm (SBAS) 1cm (RTK), 60cm (SBAS) 0.5cm (PPK), 1cm (RTK), 60cm (SBAS) 1cm (RTK), 40cm (DGPS)
Pitch & Roll Accuracy 0.5 MIL 0.05° dynamic, 0.08° static 0.03° dynamic, 0.05° static 0.03° dynamic, 0.05° static 0.05° dynamic, 0.08° static 0.03° dynamic, 0.05° static 0.04° dynamic, 0.08° static 0.05° dynamic, 0.08° static 0.01° Dynamic
GNSS Constellations BDS, GAL, GLO, GPS, QZSS, IRNSS (NavIC) BDS, GAL, GLO, GPS, QZSS BDS, GAL, GLO, GPS, QZSS BDS, GAL, GLO, GPS, QZSS BDS, GAL, GLO, GPS, QZSS BDS, GAL, GLO, GPS, QZSS BDS, GAL, GLO, GPS, QZSS BDS, GAL, GLO, GPS, QZSS BDS, GAL, GLO, GPS, QZSS
Corrections DGPS, PPK, PPP, RTK, SBAS DGPS, RTK, SBAS DGPS, PPK, PPP, RTK, SBAS DGPS, PPK, PPP, RTK, SBAS PPK, RTK, SBAS DGPS, PPK, PPP, RTK, SBAS PPK, RTK, SBAS PPK, RTK, SBAS DGPS, PPK, RTK
Type of IMU MEMS, Tactical-grade, FOG IMU Optional MEMS MEMS, Tactical-grade MEMS, Tactical-grade MEMS, Industrial-grade MEMS, Tactical-grade MEMS, Industrial-grade MEMS, Industrial-grade HG4930, IMU-NAV, IMU-P, Kernel IMU
Magnetometer External Magnetic Compass (optional) Embedded Mini-Fluxgate Magnetometer External Magnetic Compass (optional) Embedded Fluxgate Magnetic Compass Embedded Mini-Fluxgate Magnetometer External Magnetic Compass (optional) External Magnetic Compass (optional) Embedded Fluxgate Magnetic Compass Embedded or External Magnetic Compass
Other Features Battle management system integration, Freeform messaging Anti GNSS spoofing and jamming, Additional displays Static & Dynamic Pressure, Airspeed, Mach Number, True Angle of Attack (ADC) Tactical Grade IMU, Advanced, extendable, embedded Kalman Filter with sensor fusion algorithms All INS-B features + Fluxgate Gyro-Compensated Compass (Magnetometer) – high performance in longterm GPS-Denied environment Affordable price, u-blox all-constellation GNSS, RTK All INS-B features + high-precision dual GNSS Heading (HDT) Affordable price, Industrial Grade IMU Affordable price, u-blox all-constellation GNSS, RTK MIL-STD-1275, ADC, Encoder, Datalogger, Variable PPS
Size (mm) MDU: 322 x 233 x 50 DDU: 128 x 100 x 34 INS: 120 x 50 x 53 82 x 40 x 26 120.5 x 53.2 x 49.3 120.5 x 53.2 x 49.3 120.5 x 53.2 x 49.3 120.5 x 53.2 x 49.3 120.5 x 53.2 x 49.3 120 x 50 x 53 149 x 61 x 141
Weight (gram) MDU: 4050 DDU: 650 INS-B: 220 INS-D: 320 200 220 280 320 320 320 320 1060 – 1300
Applications Land Vehicle Navigation in GNSS-Enabled and GNSS-Denied Environments Fixed Wing UAV Flight Control and Navigation in longterm GNSS-Denied UGV; Land Vehicle Navigation; Lightweight AGV; Post Processed Imagery Extended GNSS-Denied Navigation; UAS; North Finding & Keeping Low-Cost Precision Agriculture; Low-Cost Land Vehicle Navigation Heavy Vehicle Guidance; Land Vehicle Navigation; Fixed Wing Navigation Antenna Pointing; Low Cost Position and Velocity; Industrial Navigation Low-Cost GNSS-Denied Navigation; Low-Cost Survey and Scanning System UGV, Land Vehicle, Fixed Wing UAV, Helicopter Extended GNSS-Denied Navigation
Model CheetahNAV INS-U INS-B INS-P INS-BU INS-D INS-DL INS-DU INS-DM