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Gishkori, S.S. (author)Efficiency of the Analog to Digital Converters (ADCs) has always been an issue of concern, especially, when it comes to sampling wide band signals which require extremely high sampling rates. As the systems with wide band signals are gaining the front position in digital communications, the need to find ways to reduce the sampling rates of ADCs...master thesis 2009
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An, F. (author), Eroglu, I. (author), Slotema, M. (author)Een onderzoek naar radartheorie om te gebruiken in een adaptive cruise control systeem.bachelor thesis 2010
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Silva, A.R.D.S. (author)The present report assesses the performance of several receiver schemes that attempt to recover as best as possible data transmitted through an acoustic underwater channel modulating a low-frequency single-carrier wave at a high data-rate for this kind of medium. The shifted Known Symbol Padding block structure is considered robust against...master thesis 2010
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Kok, S. (author)Wireless communications have numerous applications in terrestrial and space environ-ments, but for one environment the number of civil wireless applications is small. This is the uderwater environment where for wireless communications acoustic waves are used instead of electromagnetic waves. The underwater acoustic channel is a very difficult...master thesis 2011
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Van 't Hof, S.A. (author), Wensveen, M.H. (author)Leds zorgen voor een revolutie op het gebied van verlichting. Vergeleken met gloeilampen zijn ze meer energiezuinig en kunnen ze sneller schakelen. Dat maakt energie-efficiënte lichtcommunicatie mogelijk. Het onderwerp van ons onderzoek is “communicatie via leds”. Wij passen dit toe in de automatisering van prijsaanduidingen in warenhuizen, door...bachelor thesis 2011
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Kontakis, A. (author)Since the early days of exploration seismology seismic receiver field arrays have been employed for purposes such as suppressing high wavenumbers present in wavefield, reducing the volume of recorded data and improving its signal-to-noise ratio. These receiver field arrays rely on the receivers being placed on a predetermined geometric layout, a...master thesis 2013
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Bahrami, S. (author)The goal of Non-Intrusive Appliance Load Monitoring (NIALM), or energy disaggregation, is to deduce which devices are active and how much energy they consume from observation of the time evolution of the total voltage or current in the electrical network. In this thesis, energy disaggregation is performed from the time series of power meter...master thesis 2014
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Compressive Power Spectrum Estimation: Further study on Non Uniform sampling and Parametric ApproachZhang, R. (author)In the recent development of wireless communication several applications, such as spectrum sensing for cognitive radio are only interested in the power spectrum. These applications do not require the reconstruction of the original analog signal. According to the Whittaker-Kotelnikov-Shannon-Nyquist theorem, the sampling rate must be at least...master thesis 2015
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Jones, J.C. (author), Karman, D. (author)When modelling the propagation of an underwater acoustic signal the effects of the hardware that generated and detected it need to be taken into account. This enables one to isolate and remove the effects of the hardware on a channel measurement test signal when performing underwater localisation, allowing for a more effective analysis of the...bachelor thesis 2016
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Krishnaprasad, N.R. (author)The conventional techniques to estimate the Direction-of-Arrival (DOA) of acoustic sources includes employing multiple Acoustic Pressure Sensors (APSs) in an array configuration. Recently with the advent of MEMS technology, the sensors are capable of capturing acoustic particle velocity along with acoustic pressure and these sensors are referred...master thesis 2016
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de Jong, R.J. (author), Zwart, D.J. (author)This thesis shows the successful development of an acoustic channel model to be used for optimisation of localisation. It uses an eigenray approximation, implemented as the image source method to determine a channel impulse response. The image source method however limits the model to environments which can be reduced to cuboid shaped rooms as...bachelor thesis 2016
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Kokke, C.A. (author), Blom, J.F.J. (author)Underwater robotics face an interesting challenge. Since electromagnetic waves barely propagate underwater, systems like GPS are unusable. However, for a robot to function autonomously, it needs to be able to know its position. Because of this, using acoustic waves for transmitting signals underwater has been established to be the way forward....bachelor thesis 2016
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- Fedjajevs, A. (author) master thesis 2016
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Bakker, Thomas (author), Eldering, Danny (author)Pressure ulcers are wounds that arise when a person sits or lays in the same posture for an extended period of time. Starting from the skin and possibly continuing to the bone, tissue slowly decays when the pressure keeps being applied to the same spot. Prevention is the best method of treating the ulcers and it is done by regularly changing...bachelor thesis 2017
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Brinkhorst, Douwe (author), Liesker, Bas (author)The founders of Momo Medical envisioned a health care product that would help nurses worldwide with pressure ulcer prevention. Pressure ulcers are a chronic wound that affects the skin of patients who do not regularly change bed posture. As it currently stands, nurses lack the manpower and time to change the postureof patients in a timely manor....bachelor thesis 2017
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Kok, Wim (author), Hoogland, Andy (author)Problem Definition<br/>This bachelor final project was an assignment given by the start up Momo Medical named: "Improving health care with technology". This project was to use their existing technology and ideas to create a system to prevent pressure ulcers. Pressure ulcer are the medical condition that happens when a patient is left too long in...bachelor thesis 2017
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Mahabir, Ashvant (author)Graphs are used to model irregular data structures and serve as models to represent/capture the interrelationships between data. The data in graphs are also referred as graph signals. Graph signal processing (GSP) can then be applied which basically extends classical signal processing to solve problems. Anomaly detection is an example of such a...master thesis 2017
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Coonen, Bart (author)Direction-Of-Arrival (DOA) estimation of acoustic signals is of great interest in various applications including battlefield acoustic and noise localization. Acoustic sensors are employed in an array configuration to estimate DOAs based on the time differences of arrival DOAs. However, the acoustic sensors in the network have all their own Data...master thesis 2018
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Jonk, Jasper (author), Minderman, Björn (author)Though several sensors are available for underwater scanning and ranging, they all have their limits. SONAR sensors are limited in resolution, and scanning mechanisms using a form of light for carrying the data suffer from high attenuation in turbid waters. <br/> <br/>The goal of this project was to design a LiDAR system that is capable of...bachelor thesis 2019
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Zwetsloot, Eva (author), Wix, Lynrick (author)Current subsea LiDAR implementations are inherently depth limited, and make LiDAR applications in the deep-sea costly. To this end, the SLiDAR project aims to develop a pressure tolerant LiDAR system for use at any ocean depth. This thesis elaborates the design and implementation of the laser pulse transmission of the LiDAR and the circuit which...bachelor thesis 2019