Searched for: subject:"receiver"
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Manchanda, Prabhav (author)
Space launches have been steadily increasing over the years as satellites are being used in various applications such as communication, military, and science. The costs of launching satellites are still high and depend on the dimensions and weight of the satellite. With the advancement in the field of autonomous robotics and telecommunications,...
master thesis 2019
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van Dongen, Kirsten (author)
Heavy rainfall, combined with expanding (unplanned) urban settlements in flood prone areas, expose Dar es Salaam (Tanzania) to the risks of flooding. The urbanisation is so rapid in many areas that it is not beneficial to carry out expensive surveys which are quickly out of date. The work carried out by community-mapping project Dar Ramani Huria...
master thesis 2019
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Montenbruck, Oliver (author), Hauschild, André (author), Langley, Richard B. (author), Siemes, C. (author)
As part of the “GPS Attitude, Positioning, and Profiling experiment (GAP)” of the Canadian CASSIOPE science and technology mission, a set of four geodetic GPS receivers connected to independent antennas on the top-panel of the spacecraft can be operated concurrently to collect dual-frequency code and phase measurements on both the L1 and L2...
journal article 2019
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Šabanović, Armin (author)
This thesis introduces the concept of phase rotation cancellation (PRC) as a previously unknown error mechanism in narrow-band FSK systems, and proposes a new FSK demodulation algorithm to resolve PRC errors. Phase rotation cancellation is defined as an event where the signal phasor rotation in the IQ plane is temporarily cancelled by the...
master thesis 2019
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Park, David (author)
The report describes the graduation project done for Lifesafety Products B.V., otherwise known as Lifehammer. The company has a problem with the attachment systems of their emergency hammers. These hammers are used to break car glass in emergencies. The most commonly known use case in the Netherlands is when one ends up trapped in a car...
master thesis 2019
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Haffner, M.E.A. (author), Elsinga, M.G. (author)
The capability approach as a normative approach to wellbeing focuses on the real freedoms of people to choose the life they want to live (Sen, 1999). This approach is regarded as an alternative to the needs-based approach of paternalistic welfare states in Europe and seems to match well with the ambitions of the European Commission ‘to show a...
journal article 2019
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Krietemeyer, A. (author), ten Veldhuis, Marie-claire (author), van der Marel, H. (author), Realini, Eugenio (author), van de Giesen, N.C. (author)
Dual-frequency Global Navigation Satellite Systems (GNSSs) enable the estimation of Zenith Tropospheric Delay (ZTD) which can be converted to PrecipitableWater Vapor (PWV). The density of existing GNSS monitoring networks is insufficient to capture small-scale water vapor variations that are especially important for extreme weather...
journal article 2018
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Odolinski, Robert (author), Teunissen, P.J.G. (author)
The emerging GNSSs make single-frequency (SF) RTK positioning possible. In this contribution two different types of low-cost (few hundred USDs) RTK receivers are analyzed, which can track L1 GPS, B1 BDS, E1 Galileo and L1 QZSS, or any combinations thereof, for a location in Dunedin, New Zealand. These SF RTK receivers can potentially give...
journal article 2018
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Mao, X. (author), Visser, P.N.A.M. (author), van den IJssel, J.A.A. (author)
The European Space Agency (ESA) Swarm mission is a satellite constellation launched on 22 November 2013 aiming at observing the Earth geomagnetic field and its temporal variations. The three identical satellites are equipped with high-precision dual-frequency Global Positioning System (GPS) receivers, which make the constellation an ideal...
journal article 2018
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Zhang, Baocheng (author), Teunissen, P.J.G. (author), Yuan, Yunbin (author), Zhang, Xiao (author), Li, Min (author)
Sensing the ionosphere with the global positioning system involves two sequential tasks, namely the ionospheric observable retrieval and the ionospheric parameter estimation. A prominent source of error has long been identified as short-term variability in receiver differential code bias (rDCB). We modify the carrier-to-code leveling (CCL), a...
journal article 2018
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Weber, J.H. (author), Schouhamer Immink, Kees A. (author)
Besides the omnipresent noise, other important inconveniences in communication and storage systems are formed by gain and/or offset mismatches. In the prior art, a maximum likelihood (ML) decision criterion has already been developed for Gaussian noise channels suffering from unknown gain and offset mismatches. Here, such criteria are...
journal article 2018
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Neto, A. (author), Llombart Juan, N. (author), Freni, A. (author)
In this paper, the portion of the incident field that can be received by an antenna is investigated: the observable field. This field can be estimated relying only on the volume allocated to the antenna and thus independently of the specific antenna geometry. The observable field is composed by a single spherical wave that first converges...
journal article 2018
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Wang, Q. (author), Giustiniano, Domenico (author), Zuñiga Zamalloa, M.A. (author)
LEDs in our buildings, vehicles, and consumer products are rapidly gaining visible light communication capabilities. LED links however are notorious for being unreliable: shadowing, blockage, mobility, external light, all of these issues<br/>can disrupt the connectivity easily. Therefore, unless a reliable and cost-efficient data link layer is...
journal article 2018
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Tan, M. (author), Chen, C. (author), Chen, Z. (author), Janjic, Jovana (author), Daeichin, V. (author), Chang, Z.Y. (author), Noothout, E.C. (author), van Soest, G. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)
This paper presents an area- and power-efficient application-specified integrated circuit (ASIC) for 3-D forward-looking intravascular ultrasound imaging. The ASIC is intended to be mounted at the tip of a catheter, and has a circular active area with a diameter of 1.5 mm on the top of which a 2-D array of piezoelectric transducer elements is...
journal article 2018
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TZOTZADINIS, Chris (author)
Compressive Sensing (CS) provides a new paradigm in data acquisition and signal processing based on the assumption of sparsity and the incoherence of the received signal. Based on that concept, many radar front-end architectures have been studied with the implementation of CS. In these architectures, less data are collected but the radar scene...
master thesis 2017
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Slob, E.C. (author), Wapenaar, C.P.A. (author)
We present a three-dimensional scheme that can be used to compute the electromagnetic impulse response between any two subsurface points from surface reflection data measured at a single surface of a lossless medium. The scheme first computes a virtual vertical radar profile using the Marchenko scheme from which focusing wavefields are...
conference paper 2017
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Teunissen, P.J.G. (author), Imparato, D. (author), Tiberius, C.C.J.M. (author)
As the navigation solution of exclusion-based RAIM follows from a combination of least-squares estimation and a statistically based exclusion-process, the computation of the integrity of the navigation solution has to take the propagated uncertainty of the combined estimation-testing procedure into account. In this contribution, we analyse,...
journal article 2017
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Koning, A.M. (author)
Additional thesis - To improve weather monitoring, local near-real time weather forecasts and climate monitoring, a dense network of sensors should be set up. As shown already in the 1990s, GPS is a promising measurement device to form a dense network for meteorology observation. Because of economic reasons, a network of dual frequency GPS...
student report 2017
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Bueno Lopez, J. (author), Yurduseven, O. (author), Llombart Juan, N. (author), Yates, S.J.C. (author), Neto, A. (author), Baselmans, J.J.A. (author)
This contribution presents the design and sub-mm wave measurements of a wideband dual polarized leaky lens antenna coupled to kinetic inductance detector (KIDs) to be specifically used for tightly spaced focal plane arrays. The antenna is planar and composed by two crossed slots, fed by two orthogonal coplanar waveguide (CPW) lines. In...
conference paper 2017
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Uysal, F. (author), Martin, J.C. (author), Goodman, N.A. (author)
This paper presents a method for exploiting wideband spectral information of real-valued radio frequency (RF) signals using the Nyquist Folding Receiver architecture. A new system model based on a symmetric modulation matrix is introduced so that the frequency band of the real input signals can be estimated without in-phase and quadrature...
conference paper 2017
Searched for: subject:"receiver"
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