Kirjasto - Tampereen teknillinen yliopisto

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  • Sampling jitter cancellation in direct-sampling radio 
    Syrjälä, Ville; Valkama, Mikko (2010)
    This paper addresses the sampling jitter estimation and cancellation task in direct RF sub-sampling type radios. The proposed jitter estimation method is based on carefully injecting or superimposing an additional known ...
  • Sampling jitter estimation and mitigation in direct RF sub-sampling receiver architecture 
    Syrjälä, Ville; Valkama, Mikko (2009)
    The sampling jitter is particularly problematic in systems where high-frequency signals are sampled. This paper addresses the sampling jitter estimation and cancellation task in the direct RF sub-sampling type radio ...
  • Sampling jitter in charge sampling radio 
    Syrjälä, Ville; Lehtinen, Vesa; Valkama, Mikko (2012)
    This article addresses some implementation challenges in the potentially very energy-efficient charge sampling radios. Alternative ways to implement charge sampler in charge sampling radio are considered, and the impacts ...
  • SAR Imagery Classification in Extended Feature Space by Collective Network of Binary Classifiers 
    Uhlmann, Stefan; Kiranyaz, Serkan; Ince, Turker; Gabbouj, Moncef (2011-09)
  • Sensitivity of optimum downtilt angle for geographical traffic load distribution in WCDMA 
    Niemelä, Jarno; Isotalo, Tero; Borkowski, Jakub; Lempiäinen, Jukka (2005)
    The target of this paper is to evaluate the impact of geographical traffic load distribution of a cell on the optimum downtilt angle of macrocellular WCDMA network. Moreover, the target is to solve possible capacity gain ...
  • Size-controlled aerosol synthesis of silver nanoparticles for plasmonic materials 
    Harra, Juha; Mäkitalo, Jouni; Siikanen, Roope; Virkki, Matti; Genty, Goery; Kobayashi, Takayoshi; Kauranen, Martti; Mäkelä, Jyrki M. (2012)
    Aerosol techniques were used to synthesize spherical and monodisperse silver nanoparticles for plasmonic materials. The particles were generated with an evaporation–condensation technique followed by size selection and ...
  • Spectral control in anisotropic resonance-domain metamaterials 
    Husu, Hannu; Mäkitalo, Jouni; Siikanen, Roope; Genty, Goery; Pietarinen, Henna; Lehtolahti, Joonas; Laukkanen, Janne; Kuittinen, Markku; Kauranen, Martti (2011)
    We introduce a concept to control the spectral and dichroic properties of metamaterials. The approach is based on anisotropic metal nanoparticles and on varying their mutual orientation in a periodic lattice. Even seemingly ...
  • Spectral-luminescent properties and molecular orbital treatment of some mono- and difluoroquinolones 
    Polishchuk, Anna V.; Karaseva, Emilya T.; Emelina, Tatyna B.; Cramariuc, Oana; Karasev, Vladimir E. (2011-01-13)
    Electronic absorption and luminescent spectra of nonfluorinated nalidixic (nlqH) and pipemidic acid (pifqH), monofluoroquinolones – norfloxacin (nfqH) and pefloxacin (pfqH) as well as of their difluorinated analogs ...
  • State of the art baseband DSP platforms for Software Defined Radio: A survey 
    Omer, Anjum; Ahonen, Tapani; Garzia, Fabio; Nurmi, Jari; Brunelli, Claudio; Berg, Heikki (2011)
    Software Defined Radio (SDR) is an innovative approach which is becoming a more and more promising technology for future mobile handsets. Several proposals in the field of embedded systems have been introduced by different ...
  • Statistical time-frequency multiplexing of HD video traffic in DVB-T2 
    Rezaei, Mehdi; Bouazizi, Imed; Gabbouj, Moncef (2009)
    Digital video broadcast-terrestrial 2 (DVB-T2) is the successor of DVB-T standard that allows a two-dimensional multiplexing of broadcast services in time and frequency domains. It introduces an optional time-frequency ...
  • Strain hardening, avalanches, and strain softening in dense cross-linked actin networks 
    Åström, Jan A.; Kumar, P.B.Sunil; Vattulainen, Ilpo; Karttunen, Mikko (2008)
    Actin filament networks enable the cytoskeleton to adjust to internal and external forcing. These dynamic networks can adapt to changes by dynamically adjusting their cross-links. Here, we model actin filaments as cross-linked ...
  • Strong enhancement of second-harmonic generation in all-dielectric resonant waveguide grating 
    Siltanen, Mikael; Leivo, Samuli; Voima, Pauliina; Kauranen, Martti; Karvinen, Petri; Vahimaa, Pasi; Kuittinen, Markku (2007)
    The authors demonstrate that a dielectric resonant waveguide grating can enhance optical second-harmonic generation by a factor of 550 compared to a similar flat surface. Their structure, which consists of purely dielectric ...
  • Strong-field-ionization suppression by light-field control 
    Räsänen, Esa; Bojer Madsen, Lars (2012-09-25)
    In recent attempts to control strong-field phenomena such as molecular dissociation, undesired ionization sometimes seriously limited the outcome. In this work we examine the capability of quantum optimal control theory ...
  • Strong second-harmonic generation in silicon nitride films 
    Ning, Tingyin; Pietarinen, Henna; Hyvärinen, Outi; Simonen, Janne; Genty, Goery; Kauranen, Martti (2012)
    We observe strong second-harmonic generation from silicon nitride films prepared on fused silica substrates by plasma enhanced chemical vapor deposition. The components of the second-order nonlinear optical susceptibility ...
  • Suppression of nonlinear optical signals in finite interaction volumes of bulk materials 
    Cattaneo, Stefano; Siltanen, Mikael; Wang, Fu Xiang; Kauranen, Martti (2005)
    We show that nonlinear optical signals generated by non-phase-matched interactions are strongly suppressed when the interaction volume is finite and localized deep inside the bulk of a homogeneous material, as opposed to ...
  • Surface and bulk contributions to the second-order nonlinear optical response of a gold film 
    Wang, Fu Xiang; Rodriguez, Francisco J.; Albers, Willem M.; Ahorinta, Risto; Sipe, J.E.; Kauranen, Martti (2009)
    We use two-beam second-harmonic generation to separate the surface (electric dipole origin) and bulk (magnetic dipole and electric quadrupole origin) contributions to the second-order nonlinear optical response of an ...
  • Systematic coarse graining from structure using internal states: Application to phospholipid/cholesterol bilayer 
    Murtola, Teemu; Karttunen, Mikko; Vattulainen, Ilpo (2009)
    We present a two-dimensional coarse-grained (CG) model for a lipid membrane composed of phospholipids and cholesterol. The effective CG interactions are determined using radial distribution functions (RDFs) from atom-scale ...
  • Tip-enhanced Raman scattering from bridged nanocones 
    Rao, Satish; Huttunen, Mikko J.; Kontio, Juha M.; Mäkitalo, Jouni; Viljanen, Milla-Riina; Simonen, Janne; Kauranen, Martti; Petrov, Dmitri (2010)
    We present two silver nanocones separated by 450 nm, well beyond the typical gap spacing of coupled nanoantennas, and connected by a metal bridge to facilitate plasmonic coupling between them. The tip-enhanced Raman ...
  • Towards more authentic learning in hypermedia 
    Tervakari, Anne-Maritta; Silius, Kirsi (2011)
    A major challenge in teaching hypermedia is to illustrate how varying dimensions of using context are related to user's quality experience of online services. The Urban Computing Lab (UCL) tool was developed for students ...
  • Transform domain similarity measures in stereo matching 
    Suominen, Olli; Gotchev, Atanas; Hannuksela, Miska M. (2012-10)
    A Fourier-domain representation of an image exhibits a property where a translation of the image is included in the phase term. This property extends to the Discrete Cosine Transform, where the translation is encoded in ...

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