Flexible allocation of resources for a fragmented spectrum, ie cognitive radio. Non contiguous frequency blocks are allocated to a user. The transmitter uses a so-called Universal Filtered Multicarrier system where a multiband OFDM transmission occurs with parallel transmission chains, one per frequency...
Communication and broadcast system for Time Division Multiple Access (TDMA), spread spectrum, filtered signal and cross-correlated in-phase and quadrature-phase baseband signals for Radio Frequency (RF) tunable or RF agile transmitters. A selector and connection device provides selection and connection...
In the end, it is obtained a noiseless envelope spectrum, averaging the filtered periodograms of each envelope of the non-overlapped signal segments. To prove the effectiveness of the proposed method, it is tested on a highly non-stationary vibration signal measured from an aircraft engine under...
Development of a filtered AXUV diode array for X-pinch soft x-ray spectra in the energy range of 1–10 keV We develop a filtered absolute extreme ultraviolet (AXUV) diode array to measure the time evolution of the soft x-ray spectrum in the energy range of 1–10 keV. AXUV–HS5, ...
In this paper, Nyquist filtered broadband SC transmission is considered. As the transmit filter roll-off factor α increases, the signal bandwidth increases and the PAPR reduces. MMSE-FDE using spectrum combining was proposed in [15]. An additional frequency diversity gain can be obtained by ...
aNear-infrared reflectance analysis of dried filter paper embedded with crushed, homogenised and filtered pepper, hereafter referred to as a DESIR sample, requires a number of operations prior to spectrum collection 对干滤纸的近红外反射率分析埋置用被击碎的,均匀的和被过滤的胡椒,此后被称为DESIR样品,...
Seyedin S, Gazor S, Ahadi SM. On the distribution of MEL-filtered log-spectrum of speech in additive noise. Speech Commun 2015;67:8-25.S. Seyedin, S. Gazor, and S. M. Ahadi, "On the distribution of Mel-filtered log spectrum of speech in additive noise," under review, 2013....
Robustness of the Filtered-X LMS Algorithm— Part II: Robustness Enhancement by Minimal Regularization for Norm Bounded Uncertainty part I: necessary conditions for convergence and the asymptotic pseudospectrum of Toeplitz Matricesrdquo of this issue], regularization filters are designed ... R Fraanje,...
Advance OFDM design base filtering was adopted for the fifth generation (5G) network to boost Spectrum Efficiency (SE), interference reduction, and allow for asynchronous communication. In this paper, a Multiband Filtered-OFDM (MF-OFDM) is presented with two scenarios of spectrum fragmentation, the...