GNSS component testing
Precise characterization of your technological building blocks
GNSS components play a strategic role in the overall performance of a navigation or geolocation system. Testing them independently, prior to any integration, enables us to validate their technical compliance, their robustness in a constrained environment and their ability to meet performance and integrity requirements.
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Why test GNSS components?
These tests are aimed at R&D departments, hardware integration teams and technical buyers looking to secure their technological choices.
GNSS component testing enables you to :
- Detect performance gaps or technical incompatibilities at an early stage
- Qualify a supplier or compare several components
- Reduce the risk of anomalies during the integration phase
- Accelerate development and validation cycles
- Increase confidence in the reliability of the final product
Test each technology brick before integration
Before evaluating the GNSS system as a whole, it is advisable to test its various components separately. These tests are fundamental to guaranteeing the functional robustness and reliability of the technological building blocks that will form the core of the navigation or positioning system. They enable potential faults to be identified, performance to be finely calibrated and integration choices to be optimised from the earliest development phases.
GNSS antenna
- Characterization of gain, radiation pattern and directivity
- Analysis of in-band and out-of-band sensitivity
- Resistance to interference: jamming, cross-correlation, radiated EMC
GNSS receiver
- Analysis of TTFF (Time to First Fix) in different contexts (cold/warm/hot start)
- Multi-constellation and multi-frequency testing (L1, L2, L5)
- Positioning accuracy: absolute and relative, metric to centimetric
- Validation of aid modes (AGNSS, SBAS, PPP, RTK)
Hybrid sensors (IMU, odometer, barometer, etc.)
- Random noise and long-term drift characterization
- Analysis of thermal and dynamic stability
- Validation of synchronized GNSS/INS fusion data (Kalman, IA)
Support data
- Quality and integrity of correction data (SBAS, PPP, RTK)
- Analysis of latency, update frequency and format reliability
- Robustness tests in the event of loss, signal degradation or data corruption
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Physical constraints to guarantee stable performance in real-life conditions
To guarantee flawless operation in a real environment, GNSS components must demonstrate their stability in the face of demanding physical constraints. The aim of these tests is to validate the ability of each technology brick to maintain its performance and integrity in critical contexts, whether the products are embedded in vehicles, drones or exposed industrial installations.
- Extreme temperatures: from -40°C to +85°C
- Vibrations and shocks: in accordance with automotive, rail and aerospace standards
- Harsh environments: humidity, dust, salt spray
- Electromagnetic compatibility: conducted and radiated interference
Why trust the Emitech Group for your GNSS component tests?
- Recognised standards expertise**: GUIDE-GNSS, a subsidiary of Emitech, co-authored the EN 16803 standards
- Multi-sector experience**: automotive, rail, aerospace, IoT, agriculture, defence
- ISO/IEC 17025 accredited laboratories**, equipped with instruments that comply with GNSS standards
- Advanced test facilities**: 3D simulators, anechoic chambers, modular test benches
- Powerful analysis tools**: consolidated indicators, automated reports, comparative deliverables, etc
Needs
Discover a selection of additional resources that explore topics related to this page including regulatory contexts, technical articles, and specific areas of expertise. These materials provide further insight to help you better understand the key challenges and available solutions.
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Our experts can help you define your GNSS component test campaigns. Contact us to design a protocol tailored to your technical, sectoral and regulatory needs.
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