GINC Technology
Sensing, Timing & Navigation

Resilient Positioning & Navigation

The capacity to navigate when satellites cannot be trusted: inertial systems, gravitational and magnetic-field navigation, and the alternative positioning technologies that work under denial.

Capability group
Sensing, Timing & Navigation
Domain
Critical Technology · Hard Power
Identifier
factbase.org/cap/92JJJPB82Q
Reference
Inertial navigation system Wikipedia

Papers

11.2k

2020–2024

Paper growth

+8%

2020–24 on 2015–19

Patent families

21.8k

2020–2024

Filed abroad

17%

families in more than one office

Framework

What it covers

What the capability covers and what it leaves to others, and the indicators it will be measured by.

Bounds

Covers resilient positioning technology, absorbing the gravitational and magnetic sensing nodes as navigation modalities; satellite constellations belong to the space capabilities of other domains, and navigation warfare to National Security.

Lineage

Carried from v0.0 (formerly Inertial navigation systems) with the same identifier, absorbing Gravitational-force sensors and Magnetic field sensors (retired): the two sensor nodes are modalities of one capacity, positioning without satellites, and persist as its discover-layer indicators.

Indicators

  • research publication share in navigation technologiesResearch
  • inertial and alternative navigation systems in productionPending
Research

Who publishes it

Papers classified to the capability, by year and by the nation of their authors' institutions, 2020–2024. Read from the v0.0 research topics Inertial navigation systems and Gravitational-force sensors and Magnetic field sensors.

Papers by year

The five leading nations, papers by year

Share of papers, 2020–2024

Of papers with a known author nation; 27% have none and are left out.

  1. 1China30.2%3,055 papers
  2. 2United States9.8%993 papers
  3. 3Germany8.4%853 papers
  4. 4France3.3%334 papers
  5. 5Russia3.1%315 papers
  6. 6Italy2.9%294 papers
  7. 7India2.9%293 papers
  8. 8United Kingdom2.7%277 papers
  9. 9Canada2.3%231 papers
  10. 10Japan2.2%219 papers

Leading institutions, 2020–2024

By fractional count: each paper divided among its authors' institutions.

  1. 1Wuhan University135fractional papers
  2. 2Beihang University105fractional papers
  3. 3Helmholtz Centre Potsdam - GFZ German Research Centre for Geosciences100fractional papers
  4. 4National University of Defense Technology85fractional papers
  5. 5Huazhong University of Science and Technology79fractional papers
  6. 6Chinese Academy of Sciences72fractional papers
  7. 7Leibniz University Hannover63fractional papers
  8. 8Northwestern Polytechnical University62fractional papers
  9. 9Southeast University59fractional papers
  10. 10Technical University of Munich55fractional papers
Patents

Who patents it

Patent families by the nation of origin of their applicants and their earliest priority year, from the CPC and IPC classes the capability is read from. 2025 onwards is incomplete: families are published 18 months after priority.

Families by priority year

The five leading origins, families by year

4,552 applicants filed here in 2015–2024; the five largest held 11% of families (HHI 39 of 10,000: unconcentrated).

Share of families by origin, 2020–2024

  1. 1China78.3%17,077 families
  2. 2United States6.0%1,305 families
  3. 3South Korea4.0%876 families
  4. 4Japan3.6%789 families
  5. 5Germany2.8%600 families
  6. 6France1.1%231 families
  7. 7United Kingdom0.5%112 families
  8. 8Taiwan0.5%99 families
  9. 9Switzerland0.4%98 families
  10. 10Israel0.3%64 families

Applicants filing most internationally, 2015–2024

Families filed in more than one office, by applicant as the offices name them.

  1. 1BOSCH GMBH ROBERT384international families
  2. 2SEIKO EPSON CORP356international families
  3. 3HONEYWELL INT INC263international families
  4. 4SAMSUNG ELECTRONICS CO LTD125international families
  5. 5HUAWEI TECH CO LTD114international families
  6. 6THALES SA104international families
  7. 7SZ DJI TECHNOLOGY CO LTD103international families
  8. 8QUALCOMM INC100international families
  9. 9ROBERT BOSCH CO LTD90international families
  10. 10DENSO CORP69international families

Classification read

  • G01C19/00 Gyroscopes and angular-rate sensors · 87.9k documents
  • G01C21/10 Inertial navigation and dead reckoning · 72k documents
  • G01C21/04 Navigation by terrestrial means, including the earth's magnetic field · 4.6k documents
  • G01C21/02 Celestial navigation · 3.6k documents
  • G01C21/005 Map and terrain matching from several navigation sources · 18.2k documents
  • G01C25/005 Alignment and calibration of inertial devices · 14.1k documents
  • G01S19/21 Satellite navigation under jamming and spoofing · 10.8k documents

Shares inventions with

Capabilities whose classes the same families also fall in, by overlap (Jaccard).

Companies

Who makes it

The companies that research, design, make, supply and operate the technology, the global leaders and the leading firms of every region.

50 companies in this capability, from 16 nations across 7 regions. Sorted by how experts see each company's global relevance in the field, from very high to very low.

  1. Very high3 companies
  2. 1

    United StatesHoneywell

    Honeywell Aerospace is one of the largest makers of ring-laser-gyro and MEMS inertial navigation systems (HG-series IMUs, embedded GPS/INS) and alternative-navigation products. In 2024 it added the Italian FOG maker Civitanavi.

    Very high relevance · Components & subsystems · United States, Charlotte · founded 1906 · 102k staff

  3. 2

    United StatesNorthrop Grumman

    Makes LN-series fibre-optic and ring-laser INS for aircraft, ships and submarines, and its German unit Northrop Grumman LITEF is a leading European inertial supplier.

    Very high relevance · Systems integration · United States, Falls Church · founded 1939 · 97k staff

  4. 3

    FranceSafran

    Safran Electronics & Defense is a global leader in hemispherical-resonator-gyro (HRG Crystal) and ring-laser INS such as Sigma and Geonyx, and its subsidiary Safran Sensonor makes tactical MEMS gyros.

    Very high relevance · Components & subsystems · France, Paris · founded 2005 · 100k staff

  5. High10 companies
  6. 4

    United StatesRTX

    Collins Aerospace supplies assured PNT: M-code GPS/INS, Atlantic Inertial Systems tactical IMUs and Silicon Sensing MEMS gyros, the last through a joint venture with Sumitomo Precision.

    High relevance · Systems integration · United States, Arlington · founded 1922 · 186k staff

  7. 5

    FranceThales

    Produces ring-laser and MEMS inertial reference systems (TopAxyz, TopStar) for military and civil aircraft, plus hybrid GNSS/INS and anti-jam navigation; ranks among the top international patent filers in this field.

    High relevance · Systems integration · France, Paris · founded 1893 · 83k staff

  8. 6

    GermanyRobert Bosch

    The world's largest MEMS inertial sensor maker (Bosch Sensortec IMUs, automotive gyros used for dead reckoning) and the top international patent applicant in this capability.

    High relevance · Components & subsystems · Germany, Gerlingen · founded 1886 · 418k staff

  9. 7

    United StatesKearfott

    Long-standing maker of ring-laser and monolithic-RLG INS/GPS units (KN-4000 series) for US missiles, aircraft, artillery and space vehicles; a subsidiary of Astronautics Corporation of America.

    High relevance · Components & subsystems · United States, Woodland Park · founded 1917

  10. 8

    FranceExail Technologies

    Exail (formerly iXblue) is a leading fibre-optic-gyro maker whose INS lines (Phins, Marins, Octans, Advans) serve navies, submarines, subsea vehicles and land systems.

    High relevance · Hardware & devices · France, Paris

  11. 9

    United KingdomBAE Systems

    Builds assured-PNT products, including M-code GPS receivers, NavGuard and alternative-navigation modules, for munitions, aircraft and ground vehicles that must work under GNSS denial.

    High relevance · Systems integration · United Kingdom, London · founded 1999 · 100k staff

  12. 10

    United StatesAnalog Devices

    Leading supplier of tactical-grade MEMS IMUs and gyroscopes (ADIS165xx/ADIS1657x) built into navigation, guidance and dead-reckoning systems.

    High relevance · Components & subsystems · United States, Wilmington · founded 1965 · 24k staff

  13. 11

    SwedenHexagon

    Hexagon's Autonomy & Positioning division, built from NovAtel, KVH's FOG business (2022) and Septentrio (2025), supplies GNSS/INS, anti-jam (GAJT) and fibre-optic-gyro navigation.

    High relevance · Equipment & machinery · Sweden, Stockholm · founded 1975

  14. 12

    ChinaChina Aerospace Science and Technology Corporation (CASC)

    Its 13th Institute (Beijing Institute of Aerospace Control Devices) and listed arm China Aerospace Times Electronics are China's main makers of laser, fibre-optic and MEMS gyros and inertial systems for launch vehicles and missiles.

    High relevance · Systems integration · China, Beijing · founded 1999 · 180k staff

  15. 13

    United StatesTrimble

    Its Applanix POS GNSS-inertial systems are a reference for land, air and marine positioning through GNSS outages, alongside Trimble's ProPoint and RTX correction services.

    High relevance · Hardware & devices · United States, Westminster · founded 1978

  16. Moderate18 companies
  17. 14

    JapanSeiko Epson

    Uses quartz-crystal sensing in high-stability IMUs (M-G370/M-G570 series) for drones, machinery and navigation; the second-largest international patent applicant in this capability.

    Moderate relevance · Hardware & devices · Japan, Suwa, Nagano · founded 1942 · 74k staff

  18. 15

    IsraelElbit Systems

    Develops GPS-denied navigation for aircraft and munitions; its Brazilian subsidiary AEL Sistemas built Brazil's first aircraft inertial navigation system and makes embedded GPS/INS units.

    Moderate relevance · Systems integration · Israel, Haifa · founded 1966 · 20k staff

  19. 16

    IsraelIsrael Aerospace Industries (ELTA Systems)

    IAI's Tamam division designs and builds inertial navigation and stabilisation systems for aircraft, missiles and UAVs, and in 2025 IAI opened an advanced navigation technology centre with the Israeli MoD.

    Moderate relevance · Systems integration · Israel, Lod · founded 1953 · 15k staff

  20. 17

    ChinaChina Aerospace Science and Industry Corporation (CASIC)

    Its missile and inertial-technology institutes, including the 33rd Institute, develop and produce inertial and integrated navigation systems for Chinese tactical and strategic missiles.

    Moderate relevance · Systems integration · China, Beijing · founded 1956

  21. 18

    ChinaAviation Industry Corporation of China (AVIC)

    Its avionics institutes, including the Xi'an Flight Automatic Control Research Institute (618), supply ring-laser INS and integrated navigation for Chinese military and civil aircraft.

    Moderate relevance · Systems integration · China, Beijing · founded 2008

  22. 19

    JapanTDK

    Through TDK InvenSense, a high-volume supplier of MEMS IMUs and positioning-fusion software used for sensor-based dead reckoning in automotive, drone and robotics navigation.

    Moderate relevance · Components & subsystems · Japan, Tokyo · founded 1935

  23. 20

    JapanMurata Manufacturing

    Its Finnish unit (Murata Electronics Oy) makes high-stability automotive and industrial MEMS gyros and IMUs (SCHA6/SCH16T) used for GNSS-free dead reckoning and machine positioning.

    Moderate relevance · Components & subsystems · Japan, Kyoto · founded 1944

  24. 21

    NorwayKongsberg Gruppen

    Supplies Seatex motion reference units, aided inertial navigation for its HUGIN autonomous underwater vehicles, and integrated maritime navigation that works without GNSS.

    Moderate relevance · Hardware & devices · Norway, Kongsberg · founded 1814

  25. 22

    JapanJapan Aviation Electronics Industry

    Japan's leading maker of ring-laser and fibre-optic gyros, accelerometers and inertial navigation units for H-IIA/H3 launchers, Japan Self-Defense Force aircraft and industrial uses.

    Moderate relevance · Components & subsystems · Japan, Tokyo · founded 1953

  26. 23

    United StatesEMCORE (Velocity One)

    Makes fibre-optic-gyro and quartz-MEMS inertial navigation products, taking in the former KVH FOG, Systron Donner and L3Harris Space & Navigation lines; Charlesbank's Velocity One acquired it in March 2025.

    Moderate relevance · Components & subsystems · United States, Alhambra · founded 1984

  27. 24

    United StatesVIAVI Solutions

    Owns Inertial Labs (acquired 2024), maker of tactical INS/IMU/AHRS and GNSS-denied navigation such as LEO-aided IRINS, and sells SecurePNT resilient timing and positioning.

    Moderate relevance · Equipment & machinery · United States, Chandler · founded 2015

  28. 25

    United StatesTeledyne Technologies

    Teledyne RD Instruments' Doppler velocity logs and Teledyne's subsea navigation suites are the standard aiding sensors for inertial dead reckoning on underwater vehicles, where GNSS cannot reach.

    Moderate relevance · Hardware & devices · United States, Thousand Oaks · founded 1960 · 15k staff

  29. 26

    AustraliaAdvanced Navigation

    Fast-growing maker of digital fibre-optic-gyro INS (Boreas), AI-based GNSS-denied navigation and laser velocity sensors, with Boreas D90 tested at the US Army's APEX experiment and supplied to Kongsberg.

    Moderate relevance · Components & subsystems · Australia, Sydney · founded 2012

  30. 27

    United StatesInfleqtion

    Builds cold-atom quantum inertial sensors, clocks and RF receivers for resilient navigation and timing, holds US Army contracts for contested-environment PNT, and listed on the NYSE in February 2026.

    Moderate relevance · Hardware & devices · United States, Boulder · founded 2007

  31. 28

    United StatesSandboxAQ

    Its AQNav system navigates by matching quantum-magnetometer readings to the Earth's crustal magnetic anomaly field without GNSS, and has been flight-tested with the US Air Force and Airbus.

    Moderate relevance · Software & platforms · United States, Palo Alto · founded 2022

  32. 29

    GermanyiMAR Navigation

    Independent German maker of ring-laser and fibre-optic-gyro INS for artillery, vehicles, naval and surveying users, including defence navigation and stabilisation systems.

    Moderate relevance · Components & subsystems · Germany, St. Ingbert

  33. 30

    FranceSBG Systems

    Leading supplier of MEMS and FOG-based INS/GNSS units (Ellipse, Quanta, Ekinox, Apogee) for drones, marine survey and defence vehicles.

    Moderate relevance · Components & subsystems · France, Carrières-sur-Seine · founded 2007

  34. 31

    ChinaCHC Navigation

    Large Chinese maker of GNSS/INS integrated positioning receivers and inertial-aided navigation for surveying, machine control and autonomous vehicles.

    Moderate relevance · Hardware & devices · China, Shanghai · founded 2003

  35. Low15 companies
  36. 32

    United StatesNextNav

    Runs a terrestrial, GPS-independent 3D positioning and timing network (TerraPoiNT, Pinnacle z-axis) and is pushing to use its 900 MHz spectrum as a national GPS backup.

    Low relevance · Operations & infrastructure · United States, McLean · founded 2007

  37. 33

    United StatesANELLO Photonics

    Developed the silicon-photonic optical gyroscope (SiPhOG), which brings fibre-optic-gyro-class performance to compact INS for GPS-denied land, air and marine vehicles.

    Low relevance · Components & subsystems · United States, Santa Clara · founded 2018

  38. 34

    South KoreaLIG Nex1

    South Korea's main producer of ring-laser-gyro INS and anti-jam GPS/INS for Korean precision-guided missiles, aircraft and naval platforms.

    Low relevance · Systems integration · South Korea, Yongin · founded 1976 · 4,000 staff

  39. 35

    JapanTamagawa Seiki

    Makes fibre-optic gyros, IMUs and dynamically tuned gyros for Japanese aerospace, defence and industrial navigation.

    Low relevance · Components & subsystems · Japan, Iida · founded 1938

  40. 36

    JapanMitsubishi Precision

    A Mitsubishi Electric subsidiary that develops ring-laser gyros and inertial navigation units for Japanese missiles, spacecraft and aircraft.

    Low relevance · Components & subsystems · Japan, Kamakura · founded 1962

  41. 37

    ChinaBeijing StarNeto Technology

    Listed Chinese inertial specialist making fibre-optic and laser-gyro INS, IMUs and GNSS/INS integrated navigation; integrated inertial navigation is one of its main segments.

    Low relevance · Components & subsystems · China, Beijing

  42. 38

    ChinaAnhui Xindong Lianke Microsystem

    China's leading developer of high-performance silicon MEMS gyroscopes and accelerometers, which it says reach navigation-grade accuracy; listed on the STAR Market in 2023.

    Low relevance · Components & subsystems · China, Bengbu · founded 2012

  43. 39

    United KingdomOxford Technical Solutions (OxTS)

    Specialist GNSS-aided INS maker whose RT and AV200 units and GNSS-denied navigation software are widely used for automotive testing, autonomy and mapping.

    Low relevance · Hardware & devices · United Kingdom, Bicester · founded 2002

  44. 40

    IndiaBharat Electronics

    India's state-controlled defence electronics leader builds a land inertial navigation system around a 32 cm ring-laser gyro and pendulum accelerometers for Indian Army vehicles and artillery.

    Low relevance · Hardware & devices · India, Bengaluru · founded 1954 · 8,900 staff

  45. 41

    IndiaHindustan Aeronautics Limited

    Produces the RLG-based G3INS (GPS/GLONASS/GAGAN-aided INS) for Indian aircraft and builds Safran's Sigma 95 navigation system in India under licence.

    Low relevance · Hardware & devices · India, Bengaluru · founded 1940

  46. 42

    TürkiyeAselsan

    Makes inertial navigation systems at its Akyurt facility, including the FOG-based Kılavuz IMUs and the ANS-510 land and naval INS fitted to Turkish frigates.

    Low relevance · Systems integration · Türkiye, Ankara · founded 1975 · 11k staff

  47. 43

    TürkiyeRoketsan

    Turkish missile maker with its own navigation line: the FOG-based TurNa-TK tactical IMU, the RNU-100M and RAL2000 navigation-grade IMUs, the ALBATROS modular INS and the RNL2000-K ring-laser land INS.

    Low relevance · Hardware & devices · Türkiye, Ankara · founded 1988

  48. 44

    RussiaConcern CSRI Elektropribor

    Russia's state scientific centre for marine navigation, which develops inertial navigation systems, gyrocompasses and gravimeters for Russian Navy submarines and surface ships.

    Low relevance · Research & IP · Russia, St. Petersburg · founded 1945

  49. 45

    RussiaOptolink

    Russia's main independent maker of fibre-optic gyros and FOG-based IMUs/INS, which it supplies for aerospace, land navigation and industrial use.

    Low relevance · Components & subsystems · Russia, Zelenograd · founded 1999

  50. 46

    AustraliaQ-CTRL

    Its Ironstone Opal quantum navigation system uses quantum magnetometers and AI-assisted map matching for GPS-free airborne and maritime navigation, and has been flight-trialled with defence customers.

    Low relevance · Software & platforms · Australia, Sydney · founded 2017

  51. Very low4 companies
  52. 47

    United Arab EmiratesEDGE Group

    The UAE defence conglomerate integrates resilient navigation: SIGN4L's GPS-Protect anti-jam system, and ADASI as integration partner for the TII-developed Perceptra vision-based GPS-less navigation system on UAVs.

    Very low relevance · Systems integration · United Arab Emirates, Abu Dhabi · founded 2019

  53. 48

    United Arab EmiratesTechnology Innovation Institute

    An Abu Dhabi government applied-research institute that developed Perceptra, a vision-based navigation system for GNSS-denied flight, commercialised through VentureOne and unveiled at IDEX 2025.

    Very low relevance · Research & IP · United Arab Emirates, Abu Dhabi · founded 2020

  54. 49

    South AfricaReunert (Reutech Communications)

    Its Pretoria unit Etion Create designs and builds the CheetahNAV GNSS-aided inertial navigation system for military vehicles, exported to Middle East customers.

    Very low relevance · Hardware & devices · South Africa, Johannesburg · founded 1888

  55. 50

    IndiaAeron Systems

    Private Indian developer of indigenous inertial navigation systems, IMUs and air-data computers supplied to HAL, BEL and DRDO programmes.

    Very low relevance · Components & subsystems · India, Pune

These companies in the Companies table →