FFI Publikasjoner: Recent submissions
Now showing items 321-340 of 2875
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Severity Scoring of Behavioral Responses of Sperm Whales (Physeter macrocephalus) to Novel Continuous versus Conven tional Pulsed Active Sonar
(2021-04-19)Controlled exposure experiments (CEEs) have demonstrated that naval pulsed active sonar (PAS) can induce costly behavioral responses in cetaceans similar to antipredator responses. New generation continuous active sonars ... -
In situ performance prediction of a coherent acoustic modem in a reverberant environment
(2021-07-28)A channel sounding and communications experiment was performed in the Oslofjord, using eight bottom-mounted instrument units deployed in a network configuration. Five units were equipped with a software-defined 4–8-kHz ... -
Spectral characteristics of moist birch leaves and synthetic materials: experimental studies and evaluation of models
(2021-11-09)The optical depth of biomaterials and natural backgrounds varies with their environment and incoming light properties. Deciduous trees, for instance, have canopy thicknesses that vary significantly from one place to another. ... -
Stordata og avansert analyse – sluttrapport for FFI-prosjekt «Informasjonsintegrasjon for et moderne forsvar»
(2022-01-06)Stordata kan best forstås som et begrep heller enn en konkret teknologi eller familie av teknologier. I dette arbeidet karakteriseres stordata som data av forskjelligartet natur (variety), som kommer i store mengder ... -
Predicting scalar coupling constants via machine learning
(2021-12-22)Over the preceding decade, machine learning techniques have been successfully applied in several fields of research, including the prediction of chemical properties of atoms and molecules. Whereas conventional quantum ... -
Kildegrunnlag og metode i FFIs studier av russisk forsvarsøkonomi
(2021-12-21)I denne rapporten redegjør vi for kildegrunnlaget i FFIs studier av russisk forsvarsøkonomi. Rapporten inneholder en gjennomgang av sentrale primær- og sekundærkilder samt en diskusjon av kvaliteten på kildetilfanget og ... -
Algorithms for analysis of ballistic radar data
(2021-12-14)This report describes the algorithms used for processing ballistic radar data at the Norwegian Defence Research Establishment (FFI). A ballistic radar measures the velocity history of projectiles. This is used to determine ... -
Detection of Point Scatterers in Medical Ultrasound
(2021-11-19)We present an overview of the detection of point scatterers in ultrasound images and suggest strategies for evaluating and measuring the detection performance. We use synthetic aperture Field II simulations of a point ... -
Utilizing Zirconium MOF-functionalized fiber substrates prepared by molecular layer deposition (MLD) for toxic gas capture and chemical warfare agent degradation
(2021-09-12)Metal–organic frameworks (MOFs) are a class of porous organic-inorganic solids extensively explored for numerous applications owing to their catalytic activity and high surface area. In this work MOF thin films deposited in ... -
Overvåking av tungmetallforurensning ved Forsvarets destruksjonsanlegg for ammunisjon i Lærdal kommune – resultater for 2020
(2021-10-21)I Øyradalen sørøst for Lærdal sentrum ligger Forsvarets demoleringsfelt for ammunisjon. Dette området ble etablert i 1976 og har siden blitt benyttet av Forsvaret. For å overvåke konsentrasjonen av tungmetaller i dette ... -
Hvordan kan ny IKT gjøre Forsvaret bedre?
(2021-11-11)Norge står overfor en krevende sikkerhetspolitisk situasjon. Forsvaret spiller en avgjørende rolle for å skape sikkerhet for staten, befolkningen og samfunnet, og det er avgjørende at Forsvaret moderniseres og videreutvikles ... -
Spatial coherence of speckle for repeat-pass synthetic aperture sonar micronavigation
(2021-03-31)Accurate positioning of autonomous underwater vehicles is a major challenge. The long-term drift is problematic if global position updates are not available, and for applications such as repeat-pass interferometry and ... -
A neural network framework for binary classification of radar detections.
(2021-09-17)A desired objective in radar target detection is to satisfy two very contradictory requirements: offer a high probability of detection with a low false alarm rate. In this paper, we propose the utilization of artificial ... -
Content search in large text corpuses using natural language processing
(2021-04-28)Analysts and researchers are facing an ever increasing amount of information. Finding ways to identify relevant information on fuzzy topics and concepts can thus accelerate the analyst. We investigate the method of using ... -
A Bayesian Network Approach to Evaluating the Effectiveness of Modern Mine Hunting
(2021-10-29)This paper describes a novel technique for estimating how many mines remain after a full or partial underwater mine hunting operation. The technique applies Bayesian fusion of all evidence from the heterogeneous sensor ... -
Vil du fortsette i jobben for en million kroner? – bruk av retensjonsbonus i Forsvaret
(2021-09-10)Vil personell i Forsvaret bli værende i jobben om de får utbetalt en bonus for å fortsette? Siden 2004 har Forsvaret benyttet en slik retensjonsbonus for å beholde en bestemt personellgruppe – de som er ansatt til de er ... -
Spectral properties of multilayered oak leaves and a camouflage net: experimental measurements and mathematical modelling
(2021-09-21)The development of state-of-the-art surveillance technology forces nations to develop camouflage with advanced capabilities. Owing to the abundance and wide distribution of leaves, their spectral properties are often ... -
Spectral reflectance measurements of snow and snow covered objects: experimental studies compared with mathematical models
(2021-09-12)In this study, we have investigated reflectance spectra of different snow types under various conditions. Snow reflectance is interesting from a camouflage point of view as snow covers large land areas in many parts of the ... -
Leveraging network-centric strategic goals in capabilities
(2021-04-19)The vision of network-centric operations is to increase operational capabilities through networked collaboration. NATO and its member nations state this vision in strategic documents at a very high level of abstraction. ... -
Human performance research for military operations in extreme cold environments
(2020)Objectives Soldier performance in the Arctic depends on planning and training, protective equipment, and human physiological limits. The purpose of this review was to highlight the span of current research on enhancing ...