Essays about: "Background Noise"

Showing result 1 - 5 of 193 essays containing the words Background Noise.

  1. 1. Effectiveness of Iterative Algorithms for Recovering Phase in the Presence of Noise for Coherent Diffractive Imaging

    University essay from Göteborgs universitet / Institutionen för fysik

    Author : Henry Wittler; [2023-11-29]
    Keywords : ;

    Abstract : Methods of coherent diffractive imaging (CDI) rely on iterative algorithms to reconstruct the complex exit-surface wave (ESW) of the object being imaged from the measured diffraction intensity only. In this thesis we investigate by simulation the artifacts on reconstruction when noise are present in the measurement. READ MORE

  3. 2. Time-based Key for Coverless Audio Steganography: A Proposed Behavioral Method to Increase Capacity

    University essay from Blekinge Tekniska Högskola/Institutionen för datavetenskap

    Author : John Alanko Öberg; Carl Svensson; [2023]
    Keywords : Coverless audio steganography; information hiding; covert communication; effective capacity; behavioral; Täcklös ljudsteganografi; informationsdöljning; hemlig kommunikation; effektiv kapacitet; beteendemässig;

    Abstract : Background. Coverless steganography is a relatively unexplored area of steganography where the message is not embedded into a cover media. Instead the message is derived from one or several properties already existing in the carrier media. This renders steganalysis methods used for traditional steganography useless. READ MORE

  4. 3. Homomorphic encryption

    University essay from KTH/Matematik (Avd.)

    Author : Daniel Sanaee; [2023]
    Keywords : Mathematics; Cryptography; Computer science; Group Theory; Matematik; Kryptografi; Datalogi; Gruppteori;

    Abstract : The problem of constructing a secure encryption scheme that allows for computation on encrypted data was an open problem for more than 30 years. In 2009, Craig Gentry solved the problem, constructing the first fully homomorphic encryption (FHE) scheme. READ MORE

  5. 4. Exploring Diffuse Supernova Neutrino Background in Hyper-Kamiokande

    University essay from KTH/Fysik

    Author : Klara Cider; [2023]
    Keywords : ;

    Abstract : This thesis studies the Diffuse Supernova Neutrino Background (DSNB) that is expected to be detected in the future neutrino detector Hyper-Hamiokande. DSNB refers to the flux which is made up of neutrinos from all past core-collapsing supernova explosions. READ MORE

  6. 5. Kulturljudzon Sofielund, Malmö: : a study on the residents’ auditory perception

    University essay from SLU/Dept. of People and Society

    Author : Amanda Schmidt; [2023]
    Keywords : noise perception; soundscape; kulturljudzon; mixed-use city; urban environment; landscape architecture; environmental psychology;

    Abstract : To become better at planning vibrant mixed-use cities, we need to know more about soundscapes and noise perception in urban environments. The development towards culture being pushed out from the cities lead to the creation of a kulturljudzon in Malmö, where culture and industry sounds are allowed to exist almost unrestricted. READ MORE