Search results for: SPARSE CHANNEL

• Adaptive identification of sparse underwater acoustic channels with a mix of static and time-varying parameters

  Publication

  • M. Niedźwiecki
  • A. Gańcza
  • L. Shen
  • Y. Zakharov

  - SIGNAL PROCESSING - Year 2022

  We consider identification of sparse linear systems with a mix of static and time-varying parameters. Such systems are typical in underwater acoustics (UWA), for instance, in applications requiring identi- fication of the acoustic channel, such as UWA communications, navigation and continuous-wave sonar. The recently proposed fast local basis function (fLBF) algorithm provides high performance when identi- fying time-varying systems....

  Full text available to download

• Femtosecond laser ablated trench array for improving performance of commercial solid oxide cell

  Publication

  • M. A. Baba
  • B. Lemieszek
  • M. Sriubas
  • B. Abakevičiene
  • S. Tamulevičius
  • S. Molin
  • T. Tamulevičius

  - JOURNAL OF POWER SOURCES - Year 2024

  The performance of electrode-supported solid oxide cells (SOCs) is limited adversely by gas diffusion impedance in thick and porous support. This work focuses on the improvement of gas transport properties of commercial Ni-YSZ anode-supported SOFC by femtosecond laser-based micromachining where micro-holes of identical depth but different hole separations pitches with minimal heated affected zones were imposed. The polarization...

  Full text to download in external service