Aerospace avionics networks provide CAN-based communication channels for systems that control flight, improve performance, ensure safety, and provide passenger comfort. Network reliability is critical to robust aerospace craft operation, requiring verification of the network’s logical and physical layers. While logical layer design and verification can begin early in the design process, physical layer verification has traditionally required hardware prototypes and is often delayed until late in the development cycle. Complex networks, however, require early physical layer verification. Avionics engineers are turning to Robust Design methodologies, coupled with modeling and simulation, to meet physical layer verification objectives.
Saber’s comprehensive analog and mixed-signal simulation and modeling capabilities, coupled with well-defined Robust Design methodologies, create a standalone environment for verifying the physical layer of avionics networks. Engineers develop network designs with transceiver and controller models from the Saber library. Using Saber’s comprehensive time domain, frequency domain, and statistical analyses, the network’s physical layer is verified long before a hardware prototype is available.
- Saber Advantages
- Verify network concepts and topologies early in the network development cycle
- Analyze specific network variants, including minimum vs. maximum number of ECUs
- Analyze the impact of topology types and EMC protection on signal integrity
- Include wire characteristics in system simulations to analyze possible topology extensions
- Model and characterize aerospace communication networks using industry standard MAST and VHDL-AMS modeling languages
- Verify nominal network performance using standard analyses and ensure reliability with advanced sensitivity, statistical, and fault simulations
- Increase analysis throughput with distributed simulations across multiple CPUs
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