Results 61 to 70 of about 2,435,332 (149)

Implementation of wavelet transform based on switched current circuits

open access: yesDianzi Jishu Yingyong, 2018
In order to meet the engineering application requirement for low-power and real-time signal processing, an implementation of wavelet transform using switched current(SI) technique is presented in this paper.
Hu Qinchun   +5 more
doaj   +1 more source

Real Wages and the Business Cycle in Germany [PDF]

open access: yes
This paper establishes stylized facts about the cyclicality of real consumer wages and real producer wages in Germany. As detrending methods we apply the deterministic trend model, the Beveridge-Nelson decomposition, the Hodrick-Prescott filter, the ...
Beissinger, Thomas, Marczak, Martyna
core  

Pipelined digital SAR azimuth correlator using hybrid FFT-transversal filter [PDF]

open access: yes, 1984
A synthetic aperture radar system (SAR) having a range correlator is provided with a hybrid azimuth correlator which utilizes a block-pipe-lined fast Fourier transform (FFT).
Liu, K. Y., Wu, C.
core   +1 more source

Cherenkov radio pulses from electromagnetic showers in the time-domain

open access: yes, 2010
The electric field of the Cherenkov radio pulse produced by a single charged particle track in a dielectric medium is derived from first principles. An algorithm is developed to obtain the pulse in the time domain for numerical calculations.
A. B. Migdal   +14 more
core   +1 more source

Analysis of nonlinear oscillators using volterra series in the frequency domain Part I : convergence limits [PDF]

open access: yes, 2009
The Volterra series representation is a direct generalisation of the linear convolution integral and has been widely applied in the analysis and design of nonlinear systems, both in the time and the frequency domain.
Billings, S.A., Li, L.M.
core  

Time-domain stability of parametric synchronization in a spin-torque nano-oscillator based on a magnetic tunnel junction

open access: yes, 2017
We report on a time-domain study of parametric synchronization in a magnetic tunnel junction based spin torque nano-oscillator (STNO). Time-domain measurements of the instantaneous frequency ($f_{i}$) of a parametrically synchronized STNO show random ...
Dürrenfeld, Philipp   +4 more
core   +1 more source

LAS-CDMA using Various Time Domain Chip-Waveforms

open access: yes, 2005
LAS CDMA exhibits a significantly better performance than that of classic random code based DS-CDMA, when operating in a quasi-synchronous scenario. Classic frequency-domain raised cosine Nyquist filtering is known to show the best possible performance ...
Hanzo, L., Wei, H.
core   +1 more source

A simple method for converting frequency domain aerodynamics to the time domain [PDF]

open access: yes
A simple, direct procedure was developed for converting frequency domain aerodynamics into indicial aerodynamics. The data required for aerodynamic forces in the frequency domain may be obtained from any available (linear) theory.
Dowell, E. H.
core   +1 more source

Analyzing Systemic Risk Spillover Networks Through a Time-Frequency Approach

open access: yesMathematics
This paper investigates the spillover effects and transmission networks of systemic risk within China’s national economic sectors under extreme conditions from both time and frequency domain perspectives, building upon the spillover index methodology and
Liping Zheng   +3 more
doaj   +1 more source

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