Browsing by Title
Now showing items 1053-1072 of 2876
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Hierarchical path planning for walking (almost) anywhere
(2018)Computerized path planning, not constrained to transportation networks, may be useful in a range of settings, from search and rescue to archaeology. This paper develops a method for general path planning intended to work ... -
High assurance information exchange based on publish-subscribe and ABAC methods
(2014)The presented effort employs a combination of publish-subscribe distribution and ABAC (Attribute Based Access Control) methods to control the information exchange between security domains. It follows strictly the "separation ... -
High latitude optical satellite communications – cloud coverage in Norway
(2019-04-02)Sammendrag Trådløs satellittkommunikasjon har tradisjonelt benyttet modulerte radiobølger for overføring av informasjon til, fra og mellom satellitter. Optisk kommunikasjon benytter lignende prinsipper med elektromagnetiske ... -
High pulse energy and symmetrical far field from an optical parametric oscillator in the red spectral range
(2011)Red pulses with >30 mJ energy and <0.6 nm bandwidth have been demonstrated using a type 2 phase matched optical parametric oscillator pumped at 532 nm. A symmetrical signal beam with beam diameter-divergence product of ~3 ... -
High resolution spaceborne INSAR simulation with extended scenes
(2005)The Inverse–EETF4 (Extended Exact Transfer Function 4th order) is used to simulate raw data and a complete INSAR processing chain for high squint has been developed. Phase differences for a spaceborne INSAR geometry are ... -
High thresholds for avoidance of sonar by free-ranging long-finned pilot whales (Globicephala melas)
(2014)The potential effects of exposing marine mammals to military sonar is a current concern. Dose–response relationships are useful for predicting potential environmental impacts of specific operations. To reveal behavioral ... -
High Unemployment and the Armed Forces: The Costs and Benefits of Recruiting Military Personnel in Norway
(2021-12-07)The SARS-CoV-2 pandemic, the subsequent non-pharmaceutical interventions by governments to reduce the transmission of the coronavirus, and adjusted consumer behaviors have resulted in high unemployment rates worldwide. In ... -
High-energy bow tie multi-pass cells for nonlinear spectralbroadening applications
(2022-01-24)Multi-pass cells (MPCs) have emerged as very attractive tools for spectral broadening and post-compression applications. We discuss pulse energy limitations of standard MPCs considering basic geometrical scaling principles ... -
High-power, 1-ps, all-Yb:YAG thin-disk regenerative amplifier
(2016)We report a 100 W, 20 mJ, 1-ps, all-Yb:YAG thin-disk regenerative amplifier seeded by a microjoule-level Yb:YAG thin-disk Kerr-lens mode-locked oscillator. The regenerative amplifier is implemented in a chirped pulse ... -
High-pulse-energy mid-infrared fractional-image-rotation-enhancement ZnGeP2 optical parametric oscillator
(2016)A high-energy mid-infrared ZnGeP 2 (ZGP) optical parametric oscillator (OPO) based on the nonplanar fractional-image-rotation enhancement resonator pumped by a 2.05 μm Ho 3+ :YLF laser is presented. Up to 120 mJ pulse ... -
High-pulse-energy, linear optical parametric oscillator with narrow and symmetrical far field
(2013)A new method to obtain a narrow and symmetrical far field from a high-pulse-energy optical parametric oscillator (OPO) with a linear resonator has been tested. The OPO employs two identical nonlinear crystals that are cut ... -
High-Resolution Neural Network Processing of LFM Radar Pulses
(2023-05-05)In radar applications, the bandwidth of a transmitted pulse determines the range resolution and the ability to disclose densely spaced targets. The processing of radar signals is often carried out through matched filtering ... -
High-resolution Spaceborne SAR Processing Using the Decomposed Transfer Function
(2017)In this paper a new analytic decomposed transfer function (DTF) for spaceborne SAR (Synthetic Aperture Radar) processing is calculated using the stationary phase approximation and Taylor’s series expansion. The DTF copes ... -
Highly enriched uranium and crude nuclear weapons
(2008)Nuclear weapons can be constructed with either highly enriched uranium or plutonium. The uranium weapons are less technically demanding and do not require testing. Developing states pursuing a secret weapons programme, and ... -
Historisk gjennomgang av studier utført av FFI på Krigsskolens stridskurs
(2013-08-26)På oppdrag fra Krigsskolen har Forsvarets forskningsinstitutt (FFI) oppsummert resultatene av den forskningen instituttet har utført i tilknytning til Krigsskolens stridskurs (Hærens krigsskole). Kadettene på Krigsskolen ... -
Holmium-doped fiber amplifier for pumping a ZnGeP2optical parametric oscillator
(2021-03-03)We present a holmium-doped all-fiber master oscillator power amplifier (MOPA) system operating at 2108 nm targeting optical frequency conversion applications. The MOPA delivers pulses of 0.52 mJ energy at 10 kHz repetition ... -
"Hos oss sitter kulturen i hjertet" - en antropologisk studie av kultur i Marinejegerkommandoen
(2012-04-16)Denne rapporten beskriver og diskuterer den viktigste faktoren i spesialoperasjoner: personellet. Dette er en antropologisk studie av kulturen i Marinejegerkommandoen (MJK). Med kultur mener vi her hvordan de tenker, handler ... -
The Hotel Payload 2 campaign: Overview of NO, O and electron density measurements in the upper mesosphere and lower thermosphere
(2011)The ALOMAR eARI Hotel Payload 2 (HotPay 2) rocket campaign took place at Andøya Rocket Range, Norway, in January 2008. The rocket was launched on January 31, 2008 at 19:14 UT, when auroral activity appeared after a long ... -
Hovedpunkter for en teknologisk transformasjon
(Forsvarets forskningsinstitutt (FFI), 2021-12-16)Politiet, Politiets Sikkerhetstjeneste (PST) og Den høyere påtalemyndighet, forkortet politi- og påtaletjenestene, må følge teknologiutviklingen tett. Dette er avgjørende for å kunne vurdere teknologiske løsninger og ...