Earticle

초록

영어

The tracking of prominent oscillations with time-varying frequencies is a common task in many signal processing applications. Therefore, efficient methods are needed to meet precision and run-time requirements. We propose two methods that extract the energy of the time frequency plane along a cubic spline trajectory. To raise efficiency, a sparse sampling method with dynamically shaped atoms is developed for the one method in contrast to standard Gabor atoms for the other. Numerical experiments using both synthetic and real-life data are carried out to show that dynamic atoms can significantly outperform classical Gabor formulations for this task.

목차

Abstract
 1. Introduction
 2. Method
  2.1 Problem formulation
  2.2 Derivation of the objective function
  2.3 Optimization
 3. Results
 4. Conclusion
 References

키워드

저자

• Matthias Wacker [ Institute of Medical Statistics, Computer Sciences and Documentation, Jena University Hospital, Friedrich-Schiller-University Jena ]
• Miroslav Galicki [ Institute of Medical Statistics, Computer Sciences and Documentation, Jena University Hospital, Friedrich-Schiller-University Jena ]
• Herbert Witte [ Institute of Medical Statistics, Computer Sciences and Documentation, Jena University Hospital, Friedrich-Schiller-University Jena ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Future Generation Communication and Networking

• 간기

  격월간

• pISSN

  2233-7857

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605