Project brief
Electromagnetic compatibility analysis of an avionics bay containing 14 active emitters and 22 potential victim receivers. MATLAB scripts post-process Ansys HFSS antenna pattern and coupling data, apply ITU interference prediction models, generate worst-case coupling matrices, and flag potential interference scenarios against MIL-STD-461G EMC emission and susceptibility limits.
The supplied project concerns analysis and prioritization across an electronics bay. Explanatory graphics represent data relationships rather than independently calculated field maps.
The engineering challenge
Combine electromagnetic simulation outputs into an understandable interference-risk assessment.
Engineering approach
- Import antenna and coupling results into a common analysis format.
- Assemble emitter-to-receiver coupling and margin calculations.
- Examine routing uncertainty and mitigation priorities through scenario review.
Features & capabilities
- HFSS far-field and coupling data import and post-processing in MATLAB
- Coupling matrix generation: 14 emitters × 22 receivers = 308 coupling coefficients
- ITU SM.1134 interference prediction: intermodulation, co-channel, adjacent channel
- MIL-STD-461G RE102 and CE102 margin analysis and pass/fail flagging
- MATLAB GUI for interactive coupling matrix exploration and scenario testing
- Worst-case interference ranking with recommended mitigation measures
- Monte Carlo analysis of cable routing uncertainty on coupling values
- Integration with SIwave for PCB-level conducted emission analysis
Software & engineering tools
MATLAB R2024a, Antenna Toolbox, Ansys HFSS, CST Microwave Studio, Python (scripting), MIL-STD-461G