Investigation into the Performance Improvement of the Base Station Subaudible Decoders
Graduate and Intern Recruitment
Christchurch, CAN, NZL
2d ago

Tait base stations and repeaters are designed for mission-critical operation and engineered to provide unbeatable performance and reliability.

On this project, you'll work with experienced engineers to further improve base station performance for our customers.

Background

Subaudible signalling is a technique used in analogue radio communications to assist multiple user groups to share a common RF channel, and also for discriminating between wanted and unwanted calls.

The Tait TBC base station product currently uses the same implementation of these decoders as our terminal products. Over time, since the introduction of support for analogue FM modulation on the TBC digital base station, it has become apparent that this implementation has a few deficiencies when operating with the types of RF signal scenarios that our base stations often find themselves in.

These decoders have been found to be prone to falsely detecting a valid subaudible signal when in the presence of certain types of digital modulation.

Your Project

You will investigate the failure modes of the existing algorithm and attempt to identify enhancements or alternative approaches to detecting a valid signal.

You will do this by modelling, simulating and learning how the existing decoders work, reproducing the problems, and then prototyping signal processing techniques to make the decoder less prone to falsely detecting a valid signal in these types of signal environments.

This project would be suited to someone with an interest in and understanding of basic signal processing concepts. Experience with C / C++ programming to an intermediate level is necessary, and some familiarity with Matlab / Octave, and using Linux would also be useful.

For more information about the company, our products and solutions offered to our customers, please visit our website : .taitradio

To be eligible for a summer internship, you must :

  • Be studying, or have recently completed, an undergraduate or postgraduate degree or qualification at NZQA level 7-10. If study has been completed, the closing date of your final semester should be less than 12 months ago.
  • Be studying science, technology, engineering, design or business at a New Zealand tertiary education institute.
  • Be legally permitted to work in New Zealand.
  • This is a fixed term paid summer internship position for 400 hours, commencing in November 2020.

    Applications will close Sunday 27 September 2020. All applications will be considered, but only successful applicants will be contacted.

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