---
title: Quantum-Grade Navigation Sensors
type: technology
url: "https://www.envisioning.com/research/substrate/australia-nz__quantum-navigation-sensors"
hub: substrate
summary: Australian companies are developing quantum inertial navigation sensors for GPS-denied environments — critical for submarine navigation under AUKUS and autonomous mining in signal-blocked underground operations.
---

# Quantum-Grade Navigation Sensors

Australian companies are developing quantum inertial navigation sensors for GPS-denied environments — critical for submarine navigation under AUKUS and autonomous mining in signal-blocked underground operations.
- Technology Readiness Level: 4/9
- Impact: 4/5
- Investment: 3/5
Australian quantum technology companies, including Q-CTRL (quantum control software) and Advanced Navigation (inertial navigation hardware), are developing quantum-grade navigation sensors that use cold-atom interferometry to achieve positioning accuracy independent of GPS or any external signals. Q-CTRL, valued at over AU$500M, provides quantum firmware that extends qubit coherence times and is now applying this expertise to quantum sensing for defense navigation applications. These sensors are included in AUKUS Pillar II technology cooperation.

GPS dependence is a critical vulnerability for military platforms (submarines, aircraft in contested environments) and industrial systems (underground mining, deep-sea operations). Quantum inertial navigation units measure acceleration and rotation with atomic-clock precision, accumulating position data that doesn't drift as rapidly as classical inertial sensors. For Australia's submarine fleet — which must navigate underwater for months without surfacing or emitting signals — quantum navigation could be transformational.

The convergence of AUKUS submarine requirements, autonomous mining in GPS-denied underground environments, and Australia's existing quantum computing research base creates a unique demand signal for quantum navigation technology. Cicada Innovations' Tech23 2025 cohort specifically highlighted quantum-grade navigation for aerospace as a priority. The technology bridges academic quantum research and commercial/defense applications, potentially becoming Australia's first quantum technology export.

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Source: Envisioning — Technology Research Institute (https://www.envisioning.com/research/substrate/australia-nz__quantum-navigation-sensors)