Decimeter-Level Localization Using Single-Anchor Multipath UWB Signals

This research investigates the impact of multipath signals in UWB communications and explores their potential to improve localization accuracy of tags using the additional information captured in the Channel Impulse Response (CIR). While traditional localization typically relies on multiple anchors, this study focuses on using a single anchor...

Multiple people detection and localization with multistatic UWB radar in multipath environments for the automotive industry

In the Roadmap of 2025, EURO NCAP has announced that it will reward car manufacturers that include Child Presence Detection (CPD) technologies in their vehicles starting from 2022. Additionally, seat belt detectors are currently based on pressure sensors which can be falsely triggered with large objects placed on the seats. By basing the...

Development of radar-based vital sign detection and indoor target localization algorithms

In the last two decades, radar-based contactless vital signs monitoring (heartbeat and respiration rate) has raised increasing interest as an emerging approach for healthcare and complementary for other more established technologies. Heartbeat and respiration induce only very subtle rhythmic changes in the reflected radar signature, whereas the...

Energy-efficient multipath ring network for heterogeneous clustered neuronal arrays

Simulating large spiking neural networks (SNN) with a high level of<br/>realism in a field programmable gate array (FPGA) requires efficient<br/>network architectures that satisfy both resource and interconnect constraints, as well as changes in traffic patterns due to learning processes.<br/>Based on a clustered SNN simulator concept, in this...

Multi-core architecture for anonymous Internet streaming

There are two key components for high throughput distributed anonymizing applications. The first key component is overhead due to message complexity of the utilized algorithms. The second key component is an nonscalable architecture to deal with this high throughput. These issues are compounded by the need for anonymization. Using a state of the...

Distributed route discovery in communication networks using neighbour information

In this thesis we provide a mathematical analysis of a distributed algorithm for route discovery in communication networks.

Wideband channel measurements at 60 GHz in different environments

For future mobile multimedia communication, a Mobile Broadband System is in development, which operates at a frequency of 60 GHz. In order to get a better understanding of 60 GHz propagation effects in different environments with different conditions, several measurements were performed, using a spectrum analyzer and synthesized signal generator...

Reductie van multi path-effecten bij GPS met de residuen tabelmethode

In het Global Positioning System (GPS) wordt de positie berekend door de afstanden tot satellieten te bepalen uit de vertragingstijd van de uitgezonden signalen.<br/> Er kunnen echter grote fouten in de positiebepaling ontstaan wanneer de signalen niet alleen rechtstreeks worden ontvangen, maar ook gereflecteerd (multipath). Om dit ...

Evaluation of Two Performance Enhancement Techniques for Digital Mobile Communications: Adaptive Channel Equalisation and Dual-signal Reception

The demand for mobile communication services is expected to increase dramatically in the near future. It is expected that mobile services such as wireless LAN's and mobile telephony will become an important competitor for fixed wired services.<br/> This means that the scarcely available bandwidth must be used as efficient as possible. Several...

An Analytical Performance Evaluation of a Coded OFDM-Based Transmission Scheme, using a Markov Model for a Frequency Selective Channel

In this report the performance of an error-correcting code on a wide-band frequency selective Rayleigh fading channel with an OFDM- based transmission scheme is estimated by means of an analytical model. In the European dTTb project, a transmission scheme for a new digital terrestrial TV system is under development. This scheme uses OFDM to...

GPS multipath mitigation by antenna movements

Multipath effects form a serious threat to high precision GPS and DGPS applications. The errors caused by multipath can have values of more than 100 meters. This paper shows that when a rotating antenna is used in stead of a stationary one, the multipath errors can be mitigated to great effect, both for carrier phase and code range errors. The...

Cellulaire microgolfdatacommunicatie in een reflectieve omgeving

In een samenwerkingsverband met het containeroverslagbedrijf Europe Combined Terminals (EGT) wordt een systeemopzet gemaakt voor een datacommunicatiesysteem in het microgolfgebied. In dit verslag wordt een aanzet voor deze opzet beschreven. Het te ontwikkelen systeem moet geschikt zijn om op een groot aantal Containerterminals, die dicht bij...