Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Astronomical Instrumentation"”.
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Optical and Quasi-Optical Design and Analysis of Astronomical Instrumentation including a Prototype SAFARI Pixel
The work of this thesis focuses primarily on the quasi-optical analysis of optical systems in the Terahertz region of the spectrum. This included the development of novel simulation techniques based on the principles of mode matching and gaussian beam mode analysis, which are uniquely suited to the …
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User interfaces in space science instrumentation
This thesis examines user interaction with instrumentation in the specific context of space science. It gathers together existing practice in machine interfaces with a look at potential future usage and recommends a new approach to space science projects with the intention of maximising their …
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Ray-based Physical Optics for the Design of Astronomical Observatories
… to be a considerable performance limiter for astronomical observatories that seek to image earth-like exoplanets. These observatories are outfitted with coronagraphs, which are designed to image faint stellar companions at high contrast using specialized pupil-plane and image-plane masks. When …
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Telescopes and Techniques for the High-Resolution Characterisation of Exoplanets
In this thesis I present two strands of research relating to the characterisation of exoplanets in high resolution. The first investigates high-resolution Doppler spectroscopy (HRDS) – a technique for detecting chemical species in exoplanet atmospheres. I present results from analysing …
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Designing a beam combiner for faint limiting magnitudes in optical interferometry
In this thesis I present and discuss the work carried out during my PhD in the astrophysics group of the Cavendish Laboratory. The majority of this work has been to develop the Free-space Optical multi-apertUre combineR for IntERferometry (FOURIER), a novel, high sensitivity, near-infrared beam …
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Characterization and Mitigation of Terrestrial and Astrophysical Foreground Effects in 21cm Cosmology
I present a PhD thesis with four primary contributions relevant to the commissioning of 21cm cosmology experiments, the first two being devoted to the characterization and mitigation of VHF-band radio frequency interference (RFI), and the last two being devoted to the characterization and …
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Improving the Resolution and Sensitivity of Microwave Astronomical Observations
Millimetre and microwave astronomy has been an ever-expanding field over the past decades with an improvement in computational power, semi-conductors, super-conductors and read-out electronics. This has led to more powerful and sensitive instruments as well as higher resolutions for both …