Research Topics

* Radar System Optimization Unit

The main research focus of the radar system optimization unit is mainly on developing different kinds modulation and demodulation waveforms, optimal radar signal processing methods, which include Bayesian inversion technique and adaptive filtering. Also, the unit is involved in the analysis of methods of GPS data and implementation of a software radio technology for various application.

Performance of sidelobe-free radar waveform as a function of frequency and time delay

Example of radar waveform modulation technique

* Equatorial Ionospheric Physics Unit

The major focus of the research includes characterizing the longitudinal and temporal variations of equatorial ionospheric scintillation in Africa by using measurements from all available GPS networks in the region. Moreover, the physics of equatorial ionosphere is studied including investigation of the associated GPS position errors and a possible correction algorithm. We use magnetometer, VLF receiver and pulsation magnetometer data collected in Ethiopia in addition to measurement we obtain from other places.

Scintillation Index (S4) and Vertical Total Electron Content (VTEC) at Bahir Dar

Vertical Total Electron Content (Bahir Dar, January 2008)

VLF receiver at Bahir Dar University

* Virtual Physics Laboratory development Unit

The major focus of this unit is to develop different kinds of   virtual tools that can be used as teaching aids in lieu of real scientific instruments. The Laboratory is equipped with 24 IMAC desktop computers and five MacBook Pro laptop computers. The unit has already developed various virtual teachings aids for mechanics, electricity and magnetic field. This effort is will be enhanced soon to include engineering, chemical and biological systems.

How can we compare the effectiveness of a virtual teaching aids to that of a real instrument?