Front-end research for a low-cost spectrum analyser v1 0 2

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Rovers, K.C. (2006) Front-end research for a low-cost spectrum analyser v1 0 2. [Masters Thesis]

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Abstract:This report discusses front-end research for a low-cost spectrum analyser. Requirement
of the front-end are derived and a topology study is performed, both from an analogue as
a digital perspective. Simulations are carried out to confirm the findings.
This master project was initiated by Bruco B.V., and deals with a feasibility study of a
low-cost spectrum analyser front-end. Market research shows a demand for low-cost
spectrum analysis for various applications, where moderate specifications compared to
commercial available spectrum analysers can be acceptable. The aim is to design a
spectrum analyser system with a maximum degree of integration, since this provides
large cost-savings and a competitive product.
The project is divided into two parts; the analysis and design of an analogue
spectrum analyser front-end, and the analysis from a digital perspective.
For the analogue part, typical spectum analyser specifications are examined and
relations and trade-offs between them are derived. This results in a balanced set of
requirements. Receiver system architectures are explored and a spectrum analyser frontend
design is presented. The design consists of a frequency conversion, frequency
selection and a measurement sub-block. These are further discussed and their effect on
the achievable performance is estimated.
For the digital part, the advantages and disadvantages of the use of digital processing
for spectrum analysis are researched. A design is proposed that combines the best of
both worlds; the performance of the analogue front-end and the flexibility of digital signal
processing. The design is simulated, using MATLAB for the analogue part, while using a
specialised reconfigurable architecture for the digital part; the Montium Tile Processor.
Item Type:Masters Thesis
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:
Link to this item:http://purl.utwente.nl/publications/63868
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