Embedded, Hardware
Aerospace
France

Developing a High-Precision FPGA IP Core for Aerospace Navigation Systems

Improving the precision of time measurements in aerospace technology

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About the client

Our client, a technology company specializing in aerospace solutions, sought to develop an IP Core to improve the precision of time measurements in aerospace navigation systems. This IP Core would enable more accurate navigation computations. Such functionality is critical for systems requiring exceptional reliability and precision, including advanced aerospace applications like satellite positioning, autonomous flight systems, and real-time communication networks.

Business challenge

The development of the IP Core posed several significant technical challenges:

Error Detection and Data Validation:
Incorporating mechanisms to detect and validate data for reliable performance in high-stakes aerospace applications.
Statistical Calculations in Hardware:
Implementing advanced statistical computations directly in hardware while optimizing for FPGA efficiency.
Accuracy Optimization:

The target was to achieve the highest possible in time measurements.

Interface Standardization:
Ensuring compliance with the AXI4-Lite interface standard to facilitate seamless integration with processors for register-level operations.

Team composition

FPGA Developers (2 team members)

Our solution

To address these challenges, our team implemented a range of optimizations and enhancements:

AXI4-Lite Interface Integration:
The IP Core was designed to comply fully with the AXI4-Lite standard, ensuring seamless communication with processors and enabling easy access to registers for efficient data handling.
Accuracy Optimization Exceeding Expectations:
- The IP Core was optimized to achieve highest possible accuracy
- Advanced techniques such as pipelining and resource balancing were implemented to maximize performance.
- The design was also adapted to function efficiently on slower FPGA architectures, increasing compatibility and potential use cases.
Hardware-Based Statistical Calculations:
- We implemented tailored algorithms for statistical functions, specifically optimized for FPGA architectures to balance precision, speed and resource usage.
- These statistical functions enhanced the system’s ability to analyze and validate time measurements in real-time operations.
Comprehensive Testing and Environmental Validation:
- The IP Core was rigorously tested on multiple FPGA platforms to verify compatibility and performance across varied configurations.
- Environmental testing, including validation under extreme temperature conditions, ensured the design’s reliability for demanding aerospace applications.

Technologies used in this project

Hardware Description Languages (HDL): VHDL
Embedded Software Development: C/C++
Development Tools: Vivado, Vitis
Testing and Simulation: HDL simulators

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Value we added

Exceeding Performance Targets:
By achieving a stable operational frequency, the IP Core surpassed original expectations, providing significantly improved resolution for time measurements.
Versatility Across Hardware:
The IP Core was designed to operate efficiently across a wide range of FPGA platforms, including slower and cost-effective hardware, offering increased flexibility and reduced development costs.
Enhanced Accuracy for Aerospace Applications:
Optimized time measurements and hardware-implemented statistical functions contributed to improved precision in navigation and timing systems.
Reliability in Aerospace Conditions:
Comprehensive testing, including temperature validation, demonstrated the IP Core’s reliability in varied environments, making it suitable for critical aerospace applications.

Future perspective

The successful deployment of this IP Core highlights its potential for integration into a wide array of aerospace systems, such as satellite navigation, real-time flight control, and autonomous aerospace operations. Its modular and scalable design ensures adaptability for future projects requiring precise time and data measurements in space and aviation sectors. This project sets a benchmark for the role of FPGA solutions in advancing aerospace innovation.