
Analysis and Pre-processing of Signals Observed
In Optical Feedback Self-Mixing Interferometry
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This work contributes to the framework of pre-processing and analysing of OFMSI signals. The thesis is focus on the spectrum characteristics and the noise attenuation at weak and moderate feedback regime. To achieve this, the ability of band-pass FIR Filters and TFR methods in OFSMI signal processing has been evaluated and compared. The consequence is the performance of practical OFSMI system can be improved significantly.