Self-Calibration of Acoustic Scalar and Vector Sensor Arrays

In this work, we consider the self-calibration problem of joint calibration and direction-of-Arrival (DOA) estimation using acoustic sensor arrays. Unlike many previous iterative approaches, we propose solvers that can be readily used for both linear and non-linear arrays for jointly estimating the sensor gain, phase errors, and the source...

Gas Sensor Based on Array of Multi-Layer Graphene Decorated with Metal/Metal Oxide Nanoparticles

Graphene as an allotrope of carbon is promising for the detection of gaseous molecules due to its extremely high surface-to-volume ratio. However, its low selectivity poses a major problem for practical applications. The work presented in this thesis addresses the selectivity problem by depositing metal/metal oxide nanoparticles (NPs) on the...

A 3-by-3 400-MHz LC microsensor array for wireless capacitive biosensing

Biosensing has been developed rapidly for a number of biomedical applications, including neural monitoring, protein detection, bacteria detection and blood glucose monitoring. Among the branches of bio-sensing, capacitive sensing is a promising technique and utilized widely, since it is rapid, simple, label free and inexpensive. Compared with...

DoA estimation via unlimited sensing

Direction-of-arrival (DoA) estimation is a mature topic with decades of history. Despite the progress in the field, very few papers have looked at the problem of DoA estimation with unknown dynamic range. Consider the case of space exploration or near-field and far-field emitters. In such settings, the amplitude of the impinging wavefront can be...

The design of a distributed sensing system for contactless substrate transport

In the PHD researches of Jasper Wesselingh and Phuc Vuong, an active air film positioning system for thin substrates was developed. To apply this concept in an industrial environment, this research has to be extended to include both a positioning and a transportation system. An important part for up scaling the system is having an accurate...