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Dupon, Fréderic (author)
The use of micro air vehicles (MAV) is becoming increasingly mainstream and with them their applications have become more demanding across the board. The application of MAV’s in large GNSS-denied environments often asks for a distributed and scalable localisation system with minimal reliance on static localisation hardware. In this research a...
master thesis 2022
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van Beurden, Bas (author)
Abstract—Ultra-wideband (UWB) ranging is a very suitable method for indoor localisation of unmanned aerial vehicles (UAVs). Current solutions of UWB ranging however either focus on achieving a high accuracy or focus on scalability. In this research a positioning algorithm for UAVs is presented that combines high accuracy performance with a high...
master thesis 2021
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Gonzalez Archundia, Guillermo (author)
The continuous improvement and miniaturisation of elements in drones have been essential for making flapping-wing drones a reality. This thesis presents an integral approach for accurate indoor position control and estimation on flapping-wing drones. The approach considers three main aspects to enhance transient response of the drone. The first...
master thesis 2021
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Schrauwen, mark (author)
Many wheelchair users actively engage in wheelchair sports, for instance in the Paralympics. Trainers increasingly use the developments in sports technology for analysis. But wheelchair athletes do not benefit as much from these developments. A wheelchair can, for instance, disturb signal transmission. Recently, a set of studies describe the...
master thesis 2021
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Hsiao, C. (author), Achinuhu, A.C.I. (author)
In this thesis signal processing techniques for the Ultra-wide-band impulse radar (UWB-IR) radar are dis-cussed. To context wherein these algorithms are used is in a car, with the aim of detecting a child left behind in the car. This thesis also touches on algorithms to obtain vital information of the child inside the car. To this end a...
bachelor thesis 2020
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Neji, Saliha (author), Kooij, Roeland (author)
This thesis analyses different radar systems for sensing chest movement to detect human presence inside a car. The detection in this thesis is limited to sensing breathing rate, although heartbeat detection is considered a possibility. A comparison is made between CW-, FMCW-, pulsed- and UWB pulsed radar. UWB pulsed radar was chosen to be a...
bachelor thesis 2020
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Bouwmeester, Wietse (author)
Mankind becomes ever more reliant on wireless technology like mobile communications, navigation and radar. This development has resulted in more sensitive receivers, but this increased sensitivity also has increased the susceptibility of these receivers to interference from external sources. One of these sources that is known to disrupt...
master thesis 2020
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Sunil Sheelavant, Sunil (author)
While there are many technologies and electronic systems used to detect the human vital signs by monitoring the heart beat rate & respiration rate, all these systems rely on physical contact with the human body. Furthermore, each measuring system can only be used for a single person thus increasing the cost and complexity of integrated...
master thesis 2018
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Bruinsma, Quinten (author), Hill, Kevin (author), Hamburger, Rens (author)
For both security and analytics, much research has gone into person tracking already. As a result, many<br/>different state of the art technologies exist. However, in darkness or without a direct line of sight, much<br/>less technologies are capable of this. The choices become especially limited when the setup needs to<br/>be portable.<br/>A...
bachelor thesis 2017
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Cancrinus, Nick (author), Max, Gyula (author)
Nowadays, localization of cars is mostly done using GPS. Some major disadvantages of this method are that it is not very accurate and that it cannot be used indoors. These disadvantages do not form a major problem when an active human driver is controlling the car, but will become more critical when the autonomy of vehicles increases. The goal...
bachelor thesis 2017
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Šabanović, Armin (author), van Katwijk, Alexander (author), Verton, Pim (author)
In this report, an indoor target detection system is developed for detecting one or multiple targets in a cluttered area based on a network of distributed ultra-wideband radars. The system is capable of acquisition of data in the form of distances between radar and targets, which can be used to localise and track one or multiple targets in real...
bachelor thesis 2017
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Gonzales Huamán, E.E. (author)
It is well-known that GPS is a widely used technology for localization in outdoors environments. Nonetheless, such standard fails to provide a practical and accurate solution for localization and ranging applications within indoor environments due to the need of satellites and meter-level accuracy, which is poor for indoor environments. It is in...
master thesis 2017
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Wieffering, Tristan (author), Arriëns, Roy (author)
A system has been developed that utilises the techniques of Ultra Wideband and Synthetic Aperture Radar to produce top view images of a scene using measurements from the side. The system consists of the PulsON P410 radar module, a set of antennas, a moving platform and an imaging algorithm. This thesis will cover all the aspects of the data...
bachelor thesis 2017
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Gao, Y. (author)
This thesis deals with the design of a duty-cycled, fractional-N and low-noise Phase Locked Loop (PLL) used for Ultra-Wideband applications in 40 nm process. This is the first-ever Duty-Cycled PLL (DCPLL) that is designed with an LC oscillator and brings down the noise record for DCPLLs by more than 1 order of magnitude. Due to the special...
master thesis 2014
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Haider, S.N. (author), Caratelli, D. (author), Yarovoy, A.G. (author)
A planar, directive antenna with large fractional bandwidth is introduced in this paper. A detailed discussion on the proposed antenna topology and its architecture is reported. The proposed element is a combination of a patch and a loop radiator. A proper combination of the electric field radiator (patch) with a magnetic field radiator (loop...
journal article 2013
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Cao, J. (author)
Ultra Wideband (UWB) radio represents a promising way of communication for low power applications in interference-prone environments. For achieving a low power solution the digital baseband architecture needs to be carefully optimized to reduce the total power consumption. Particularly for the computationally intensive synchronization phase that...
master thesis 2012
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Shakeri, S. (author)
In this work a new location fingerprinting-based localization algorithm is proposed for an underwater medium by utilizing ultra-wideband (UWB) signals. In many conventional underwater systems, localization is accomplished by utilizing acoustic waves. On the other hand, electromagnetic waves haven't been employed for underwater localization due...
master thesis 2012
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Vaddagiri, K. (author)
Cancer can be viewed as a curse on life of any man or woman. Although some tumors that are malignant can be curable, it comes at a cost of unbearable pain and mental trauma. X-ray based techniques are being used for many decades for detecting tumors. These techniques are applied at the expense of exposure to high ionized radiation levels....
master thesis 2012
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Pasqua, E. (author)
Current methods for concealed weapon detection are mainly used at stationary security check-points due to complexity and other serious limitations for real-time outdoor scenarios. A mobile imaging radar is considered as a proper solution for fast screening of people at mass events because of its ability to detect both metal and non-metal weapons...
master thesis 2012
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Yang, Y. (author)
UWB radar is the most promising radar system for the future. In addition, by combining the UWB and array signal processing, one can obtain 3-D images of the objects for classification and identification, which is very useful in many applications. To achieve high-resolution real-time 3-D imaging radar, two essential items are missing in the...
doctoral thesis 2011
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