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Forskningsadministratör Kontaktinformation E-post: ida [dot] scherman [at] fysik [dot] lu [dot] se Telefon: +46 46 222 76 72 Mobil: +46 72 219 72 84Organisation Fasta tillståndets fysik Besöksadress: Professorsgatan 1, Lund Rumsnummer: C364B Hämtställe: 14 WebbplatsIda Schermans profil i Lunds universitets forskningsportalAndra roller Doktorand Mänskliga rättigheter Medlem i Strategiskt forsknings
https://www.fysik.lu.se/ida-scherman - 2026-07-12
Universitetslektor Kontaktinformation E-post: lena_m [dot] jonsson [at] med [dot] lu [dot] se Telefon: +46 46 17 36 01 Mobil: +46 72 561 58 58Organisation Medicinsk strålningsfysik, Lund Hämtställe: 32 WebbplatsLena M Jönssons profil i Lunds universitets forskningsportalAndra roller Forskningsprojektdeltagare Nuclear Medicine Physics Publikationer Visar av publikationer. Sorterade efter år och sen
https://www.msf.lu.se/lena-m-jonsson - 2026-07-12
The reassignment technique is used to increase localization for signal components in the time-frequency representation. The technique gives perfect localization for linear chirp signals and constant frequency signals. Despite the recent interest in using the reassignment technique to determine phase-shifts, no general expression of cross-spectrogram reassignment vectors exists. This submission aim
Species extinction rates have during the last centuries reached levels leading scholars to proclaim a sixth mass extinction, even referred to as defining element of the Anthropocene. How humanity relates to nature and biodiversity has thus become part of how we delineate and describe the geological epoch we live in. Sustainability science has since its origins built on a research agenda calling fo
Feedback with carry shift registers (FCSRs) have previously been available in two configurations, the Fibonacci and Galois architectures. Recently, a generalized and unifying FCSR structure and theory was presented. The new ring FCSR model repairs some weaknesses of the older architectures. Most notably, the carry cell bias property that was exploited for an attack on the eSTREAM final portfolio c
We study geometric reconstruction problems in one-dimensional retina vision. In such problems, the scene is modeled as a two-dimensional plane, and the camera sensor produces one-dimensional images of the scene. Our main contribution is an efficient method for computing the global optimum to the structure and motion problem with respect to the L-infinity norm of the reprojection errors. One-dimens
This paper presents the VLSI design of an energy-efficient, high-throughput soft-input soft-output signal detector for iterative multiple-input multiple-output (MIMO) receiver. The detector is evolved from our previously developed imbalanced fixed complexity sphere decoder and adopts several new algorithm-level techniques to exploit the available a priori information of transmitted bits. More spec
This thesis is devoted to statistical problems in mobile communication, in particular disturbance rejection and change detection are studied. Co-channel interference is a significant problem for systems based on TDMA, e.g. EDGE. We show methods for detection and suppression of such interference, when the terminal is equipped with only one antenna. Our algorithms are able to detect an interferer fo
An optimal soft multiple-input multiple-output (MIMO) detector is proposed with linear complexity for a general spatial multiplexing system with two transmitting symbols and NR ≥ 2 receiving antennas. The computational complexity of the proposed scheme is independent of the operating signal-tonoise ratio (SNR) and grows linearly with the constellation order. It provides the soft maximum-likelihood
Ever since Scalado was founded in the year 2000, the company has grown remarkably fast compared to other mobile software companies. Today the company has a turnover of about SEK 150 million and is one of the largest middleware companies in the mobile phone industry. Scalado’s core business lies within mobile imaging solutions and their technology is present in more than 600 million mobile phones.
The technology in the industry has grown substantially over the years, particularly in the wireless area. Today's smartphones and other devices that connect to a wireless network, has the opportunity to communicate with other devices via the TCP / IP protocol. This places significant demands from the companies in the industry, which believes that there is opportunity to improve productivity in
Order Picking in warehouses is often optimized using a method known as Order Batching, which means that one vehicle can be assigned to pick a batch of several orders at a time. There exists a rich body of research on Order Batching Problem (OBP) optimization, but one area which demands more attention is computational efficiency, especially for optimization scenarios where warehouses have unconvent
Order Picking in warehouses is often optimized with a method known as Order Batching, which means thatone vehicle can be assigned to pick a batch of several orders at a time. Although there exists a rich body ofresearch on Order Batching Problem (OBP) optimization, one area which demands more attention is that ofcomputational efficiency, especially for optimization scenarios where warehouses have
Introduction: There is an ongoing digital revolution in the field of Parkinson's disease (PD) for the objective measurement of motor aspects, to be used in clinical trials and possibly support therapeutic choices. The focus of remote technologies is now also slowly shifting towards the broad but more “hidden” spectrum of non-motor symptoms (NMS). Methods: A narrative review of digital health techn
When processing radar signals, the target steering vector is generally only partially known, being subject to various forms of errors and mismatches. In this article, we investigate the design of an unimodular transmit sequence that is robust against steering vector mismatches, with the aim of enhancing the performance of a frequency diverse array multiple-input-multiple-output (FDA-MIMO) radar sy
To carry out the search mission, an additional narrow-angle video camera is installed on board the unmanned aerial vehicle (UAV). This video camera can be re-aimed at objects detected in the image frame received from the main (navigation) video camera. The movement of the additional video camera is carried out by two coordinated electric drives using direct current motors or brushless direct curre
This thesis explores the challenges and advancements in high-dimensional Bayesian optimization (HDBO), focusing on understanding, quantifying, and improving optimization techniques in high-dimensional spaces.Bayesian optimization (BO) is a powerful method for optimizing expensive black-box functions, but its effectiveness diminishes as the dimensionality of the search space increases due to the cu
Hardware distortion in large intelligent surfaces (LISs) may limit their performance when scaling up such systems. It is of great importance to model the non-ideal effects in their transceivers to study the hardware distortions that can affect their performance. Therefore, we have focused on modeling and studying the effects of nonlinear RX-chains in LISs. We first derive expressions for SNDR of a
t Namn: polarisation|vrida ljus Photonics Explorer | AB 5.1 Polarisation 1/3 5.1 Vrida ljus Hur vrider man ljus? Varför skulle någon vilja vrida ljus? Vrida ljus. Det kanske låter som en konstig idé, men hade inte ingenjörer hittat en metod för att kontrollerat kunna vrida ljus skulle mobil- och datorskärmar, kanske t.o.m. din TV-apparat bara skulle visa en svart bild. I kommande experiment ska du
https://www.nrcf.lu.se/sites/nrcf.lu.se/files/2025-05/sv_AB05-1_Polarisation.pdf - 2026-07-13
M02 Arbetsblad 2.2: Färgblandning t Namn: färger| blandning Photonics Explorer | AB 2.2 Färgblandning 1/3 2.2 Hitta rätt färg Vilken är din favoritfärg? Hur skapar du den? Om vi får möjlighet att välja färg på en penna, en väska eller en T-shirt, så tar vi gärna en färg vi gillar. Idag tar vi för givet att en produkt kommer i ett val av färger. Kemister har arbetat hårt för att hitta molekyler som
https://www.nrcf.lu.se/sites/nrcf.lu.se/files/2025-05/sv_M02_AB02-2_faergblandning.pdf - 2026-07-13
