Robust dynamical recurrences based on Floquet spectrum
نویسندگان
چکیده
منابع مشابه
Robust spectrum sensing based on statistical tests
Spectrum sensing, in particular, detecting the presence of licensed or incumbent users in licensed spectrum, is one of the pivotal tasks in cognitive radio network. In this paper, we tackle the spectrum sensing problem by using statistical test theory and derive novel spectrum sensing approaches. We apply the classical Kolmogorov-Smirnov (KS) test under the assumption that the noise probability...
متن کاملNoise Robust Classification Based on Spread Spectrum
In this paper we develop a robust classification mechanism based on a connectionist model in order to learn and classify objects from arbitrary feature spaces. Thereby a joint approach of recurrent neural networks and spread spectrum symbol encoding is implemented in order to classify any kind of objects that can be represented by feature vectors. Our main contribution is to adapt the spread sp...
متن کاملOn the eigenvalue spectrum for time{delayed Floquet problems
A linear homogeneous scalar diierential{diierence equation with harmonic time dependence is investigated. The associated eigenvalue problem is solved in terms of a continued fraction expansion for the characteristic equation. The dependence of the largest eigenvalue on the system parameters, being relevant for stability of periodic states in delay systems, is discussed in detail. The competitio...
متن کاملNon-Abelian Geometric Phase, Floquet Theory, and Periodic Dynamical Invariants
For a periodic Hamiltonian, periodic dynamical invariants may be used to obtain non-degenerate cyclic states. This observation is generalized to the degenerate cyclic states, and the relation between the periodic dynamical invariants and the Floquet decompositions of the time-evolution operator is elucidated. In particular, a necessary condition for the occurrence of cyclic non-adiabatic non-Ab...
متن کاملSpectrum Sharing in Cognitive Radio Based on Robust Adaptive Beamforming
Cognitive radio is an emerging technology in wireless communication for efficient utilization of the underutilized spectrum and alleviates the spectrum scarcity. Smart antennas efficiently utilize the spectrum in cognitive radio networks. In this paper, the cognitive system consists of the secondary user, which is equipped with the multiple antennas in the form of the array and follows the stee...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal D
سال: 2011
ISSN: 1434-6060,1434-6079
DOI: 10.1140/epjd/e2011-20170-8