Design a Luenberger Observer in discrete time for estimating current iLd and iLq of a converter.

I am looking for a freelancer who can design a Luenberger Observer in discrete time for estimating current iLd and iLq for a Single Phase Dual Active Bridge Converter model.

Skills and experience required:
- Strong knowledge and experience in designing Luenberger Observers
- Proficiency in discrete time system design
- Understanding of Single Phase Dual Active Bridge Converter model and its dynamics

Note: The client did not provide any specific requirements or constraints for the Luenberger Observer design, so the freelancer should be open to suggestions and be able to propose suitable bandwidth requirements, estimation error limits, and other technical requirements.