NavCore Introduction

The Critical Navigation Challenge

Modern infrastructure depends on GPS for positioning, navigation, and timing (PNT). From power grids to financial systems, from maritime shipping to autonomous vehicles, GPS provides the invisible foundation of our connected world.

But GPS has a critical vulnerability: its signals are incredibly weak (-130 dBm at ground level) and easily disrupted.

---

GPS Vulnerabilities

Jamming

GPS signals can be blocked by simple, inexpensive jammers. A $30 device can deny GPS service across several kilometers.

Spoofing

More insidious than jamming, spoofing transmits fake GPS signals that gradually shift receivers to false positions without triggering alarms.

Natural Interference

Solar flares, atmospheric conditions, and multipath in urban canyons can all degrade GPS accuracy.

Intentional Attacks

State actors increasingly use GPS warfare, with documented cases affecting commercial shipping and aviation.

---

The NavCore Solution

NavCore addresses these vulnerabilities with a multi-layered quantum-secured approach:

┌─────────────────────────────────────────────────────┐
│                   NavCore Stack                      │
├─────────────────────────────────────────────────────┤
│  Application Layer     │  Position Evidence         │
│                        │  Integrity Metrics         │
├────────────────────────┼────────────────────────────┤
│  Security Layer        │  PQC Signatures (ML-DSA)   │
│                        │  Spoofing Detection        │
├────────────────────────┼────────────────────────────┤
│  Timing Layer          │  QRNG Holdover             │
│                        │  Atomic Clock Integration  │
├────────────────────────┼────────────────────────────┤
│  Sensor Layer          │  Multi-constellation GNSS  │
│                        │  Inertial Sensors          │
└─────────────────────────────────────────────────────┘

---

Core Technologies

1. QRNG Holdover

When GPS is unavailable, NavCore maintains timing using Quantum Random Number Generator (QRNG) based holdover:

• Quantum entropy source: True randomness from quantum mechanics
• Precision drift modeling: <50ns/hour vs industry standard 1000ns/hour
• Seamless transitions: No service interruption during GPS outages

2. Spoofing Detection

Real-time anomaly detection identifies spoofing attempts:

• Signal analysis: Doppler, carrier phase, pseudorange consistency
• Multi-constellation cross-check: GPS, Galileo, GLONASS validation
• Machine learning models: Trained on real spoofing attack data
• Detection time: <50ms average

3. PQC Authentication

All position and timing data is cryptographically signed using post-quantum algorithms:

• ML-DSA-65: NIST-standardized lattice signatures
• Quantum-resistant: Secure against future quantum computers
• Compact signatures: Efficient for constrained environments

4. Position Evidence Bundles

Cryptographic proof of position and time:

{
  "position": {
    "latitude": 59.436962,
    "longitude": 24.753574,
    "altitude": 45.2,
    "timestamp": "2026-02-06T12:00:00.000000Z"
  },
  "integrity": {
    "spoofing_detected": false,
    "integrity_score": 0.98,
    "holdover_active": false
  },
  "signatures": {
    "algorithm": "ML-DSA-65",
    "public_key": "...",
    "signature": "..."
  },
  "evidence_bundle_id": "nav_ev_abc123"
}

---

Technical Specifications

Specification	Value
Position Accuracy	<1m CEP95
Timing Accuracy	<100ns
Holdover Drift	<50ns/hour
Spoofing Detection	<50ms
Update Rate	10 Hz
API Latency	<10ms
Availability	99.99%

---

Supported Constellations

Constellation	Coverage
GPS (US)	Global
Galileo (EU)	Global
GLONASS (RU)	Global
BeiDou (CN)	Global

---

Architecture Options

1. Cloud API

Access NavCore via REST API from any location:

from qcos.navcore import QuantumGPS

gps = QuantumGPS(api_key="...")
position = gps.get_position()

2. Edge Deployment

Deploy NavCore on-premises for air-gapped environments:

• Docker containers
• Kubernetes operators
• Hardware appliances

3. Embedded SDK

Integrate NavCore into embedded systems:

• Rust SDK for constrained devices
• C API for real-time systems
• FPGA integration support

---

Integration Points

Input Sources

• GNSS receivers (u-blox, Septentrio, etc.)
• Inertial measurement units (IMUs)
• Atomic clocks
• Network time sources

Output Destinations

• Navigation computers
• SCADA systems
• Trading platforms
• Autonomous vehicle controllers
• Grid synchronization systems

---

Comparison with Alternatives

Feature	NavCore	Traditional GPS	eLoran
Spoofing Detection	✅ Real-time	❌ None	⚠️ Limited
Quantum Security	✅ PQC	❌ None	❌ None
Holdover	✅ 50ns/hr	⚠️ 1000ns/hr	⚠️ Variable
Indoor Coverage	✅ Holdover	❌ None	✅ Yes
Evidence Bundles	✅ Yes	❌ None	❌ None
Compliance Ready	✅ Full	⚠️ Partial	⚠️ Partial

---

Getting Started

Ready to protect your navigation infrastructure?

1. Quick Start Guide - Get running in 5 minutes
2. API Reference - Explore the API
3. Integration Guide - Connect your systems

---

© 2024-2026 SoftQuantus Innovative OÜ