Experienced electronics technician with over 10 years of invaluable experience in diagnosing, repairing and testing electronic systems to component level. Highly focused with a comprehensive understanding of digital circuit design, microcontrollers, RF transceivers, embedded systems and customer service. Easy going by nature and able to get along with both work colleagues and senior managers. In order to combine my personal interest of space exploration with real-life developments of the sciences I have worked towards a career in Space Engineering. I am currently studying for a PhD in the field of Space Environment and Radio Engineering during which I will be the principle contributor for launching an RF ionospheric sounding satellite into LEO (Low Earth Orbit).
I have a keen interest in electronics and radio systems with particular focus on space borne systems.
“Wideband radio sounding of the ionosphere using cubesats”
In anticipation of the development of low frequency (~450MHz) Synthetic Aperture Radar (SAR) systems, including foliage penetrating radar (FOPEN), there are many variables which need to be characterised and quantified. How wideband signals propagate through the ionosphere is a particular area of uncertainty as it is in constant flux causing changes in phase and amplitude at differing rates over the width of the band.
To better understand these effects and therefore be able to predict and compensate for the effects, this WISCER (Wideband Ionospheric Sounder CubeSat Experiment) sounder project was conceived to probe the ionosphere with a wideband signal.
The aim is to transmit a wideband signal with a deterministic waveform (up to 100MHz wide) from a CubeSat down to 2 receive stations close to the equator, where the scintillation is most problematic. Comparison and analysis of the two signals should allow calculation of the time varying complex impulse response (CIR) which has so far been elusive for previous researchers in this field.
Narrowband measurements (i.e. measurements with bandwidths of less than the channels coherency bandwidth) have been made previously and so were unable to measure multipath effects or determine the CIR. The CIR would allow for the construction of the channel scattering function, illustrating how the power in the transmitted signal has been spread in the Doppler and delay domains.
In my spare time I am developing an Android application to allow simple accident reporting to an insurance company. Development is in final stages so it should be available on the Play store shortly.