Metrology of EMI Radio Receiving Properties

Focus: 
General
Application Deadline: 
Tuesday, February 28, 2017

The Braunschweig International Graduate School of Metrology together with the Technical Cooperation of PTB offer the opportunity for currently two PhD scholarships each year for students engaged in natural sciences or engineering. The funding is provided by the German Federal Ministry for Economic Cooperation and Development (BMZ) to support developing and emerging countries (please see full list of partner countries) in the field of quality infrastructure. Initially, funding will be granted for one year. Given that it typically takes three years to complete a doctoral thesis PTB will be committed to obtain a follow-up funding. The size of the grants is comparable to grants provided by the German Academic Exchange Service (DAAD). The scholarships will be located at TU Braunschweig.

An excellent academic record and fluent English are prerequisites; skills in the German language are welcome. The submission should include CV, transcripts of the most important documents of professional qualification and a letter of application. B-IGSM promotes the professional equality of women and men and is thus especially interested in applications from women. Disabled persons will be given priority if they have the same occupational aptitude. Any granting of a scholarship has to be approved by the International Office of TU Braunschweig taking into account the Promotionsordnung (PhD Regulations) of the respective faculty where the scholarship will be located.

Please note that any application needs to be submitted via the application portal of B-IGSM.

Metrology of EMI Radio Receiving Properties

Radio interference due to non-intended signals at a receiver´s input is a long and well known phenomenon. Interference is sometimes dealt with in the simplest possible way: Some EMI standards specify thresholds for non-intended signals, e.g. maximal disturbing field strengths at the receiver´s antenna, by not exceeding the receiver´s input noise floor data. If more realistic scenarios are of interest, a lot of parameters come into play both of the intended as well as the unintended signal and their corresponding ratios, e.g. their absolute values, spectral frequency content and time behavior, etc. Not much has been done to characterize such interference scenarios in a quantitative way. Further this has to include the individual properties of the receiver system since its nonlinearities and signal processing stages have a fundamental influence on interference characteristics, too. Newest arbitrary waveform generators (AWG) with highest sample rates and flexible signal generation/programming make it possible to analyze such scenarios in a quantitative way (a first approach is documented in “Investigating EMI-characteristics of navigation receivers”; R.Geise et al, ESA workshop on Aerospace EMC, Valencia/Spain 2016). The proposed PhD thesis shall systematize such analysis.

Further information:
Prof. Dr. Achim Enders
Institute for Electromagnetic Compatibility
TU Braunschweig
achim [dot] enders [at] tu-braunschweig [dot] de

Mentor/s: 
Enders
Institution: 
TU Braunschweig
Status: 
completed