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Related papers: Random Pulse Train Spectrum Calculation Unleashed

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In this paper, we determine the almost sure multifractal spectrum of a class of random functions constructed as sums of pulses with random dilations and translations. In addition, the continuity modulii of these functions is investigated.

Classical Analysis and ODEs · Mathematics 2021-11-23 Guillaume Saes , Stéphane Seuret

We study a third-order nonlinear ordinary differential equation whose solutions, under certain specific conditions, are individual pulses. These correspond to homoclinic orbits in the phase space of the equation and we study the possible…

chao-dyn · Physics 2008-02-03 N. J. Balmforth , G. R. Ierley , E. A. Spiegel

We analyze the problem of calculating the solutions and the spectrum of a string with arbitrary density and fixed ends. We build a perturbative scheme which uses a basis of WKB-type functions and obtain explicit expressions for the…

Mathematical Physics · Physics 2015-05-20 Paolo Amore

High-energy and radio emission mechanisms for pulsars are reviewed. The source region for high energy emission remains uncertain. Two preferred radio emission mechanism are identified. Some difficulties may be resolved by appealing to…

Astrophysics · Physics 2007-05-23 Don Melrose

In contrast to other spread-spectrum techniques, wideband pulse trains with relatively low pulse arrival rates may be considered unsuitable for covert communications. The high crest factor of such trains can be extremely burdensome for the…

Signal Processing · Electrical Eng. & Systems 2020-05-05 Alexei V. Nikitin , Ruslan L. Davidchack

We present the Turing Synthetic Radar Dataset, a comprehensive dataset to serve both as a benchmark for radar pulse deinterleaving research and as an enabler of new research methods. The dataset addresses the critical problem of separating…

Signal Processing · Electrical Eng. & Systems 2026-04-08 Edward Gunn , Adam Hosford , Robert Jones , Leo Zeitler , Ian Groves , Victoria Nockles

We theoretically propose and numerically validate an all-optical scheme to generate optical pulse trains with varying peak-powers and durations. A shaping of the spectral phase thanks to discrete $\pi/2$ phase shifts enables an efficient…

Optics · Physics 2021-03-29 Ugo Andral , Christophe Finot

The DC Power Flow approximation has been widely used for decades in both industry and academia due to its computational speed and simplicity, but suffers from inaccuracy, in part due to the assumption of a lossless network. Here we present…

Optimization and Control · Mathematics 2017-09-21 John W. Simpson-Porco

We determine the spectrum of particles accelerated at shocks with arbitrary speed and arbitrary scattering properties for different choices of the equation of state of the downstream plasma. More specifically we consider the effect of…

Astrophysics · Physics 2009-11-13 G. Morlino , P. Blasi , M. Vietri

We give a short and completely elementary method to find the full spectrum of the exclusion process and a nicely limited superset of the spectrum of the interchange process (a.k.a.\ random transpositions) on the complete graph. In the case…

Probability · Mathematics 2016-07-20 Malin P. Forsström , Johan Jonasson

Pulse trains growing from modulated continuous waves (CWs) are considered, using solutions of the Hirota equation for solitons on a finite background. The results demonstrate that pulses extracted from the maximally compressed trains can…

Optics · Physics 2023-07-19 Yan Wang , Lijun Song , Lu Li , Boris A. Malomed

Using the methods originally developed for Random Matrix Theory we derive an exact mathematical formula for number variance (introduced in [4]) describing a rigidity of particle ensembles with power-law repulsion. The resulting relation is…

Mathematical Physics · Physics 2008-12-08 Milan Krbalek , Petr Seba

Block sparsity is an important parameter in many algorithms to successfully recover block sparse signals under the framework of compressive sensing. However, it is often unknown and needs to be estimated. Recently there emerges a few…

Signal Processing · Electrical Eng. & Systems 2019-09-04 Jianfeng Wang , Zhiyong Zhou , Jun Yu

Rotating Radio Transients (RRATs) are a relatively new subclass of pulsars that emit detectable radio bursts sporadically. We conducted an analysis of 10 RRATs observed using the Parkes telescope, with 8 of these observed via the…

High Energy Astrophysical Phenomena · Physics 2024-02-29 Xinhui Ren , Jingbo Wang , Wenming Yan , Jintao Xie , Shuangqiang Wang , Yirong Wen , Yong Xia

The measurement of a reaction cross section from a pulse height spectrum is a ubiquitous problem in experimental nuclear physics. In $\gamma$-ray spectroscopy, this is accomplished frequently by measuring the intensity of full-energy…

Data Analysis, Statistics and Probability · Physics 2017-10-05 J. R. Dermigny , C. Iliadis , M. Q. Buckner , K. J. Kelly

Single pulses of pulsar radio emission are modeled as superposition of radiation originating from many small subsources that are randomly distributed in the emission region. The individual subsources are given an intrinsic finite angular…

Astrophysics · Physics 2009-11-10 Qinghuan Luo

This paper considers the use of recently proposed optimal transport-based multivariate test statistics, namely rank energy and its variant the soft rank energy derived from entropically regularized optimal transport, for the unsupervised…

Machine Learning · Statistics 2023-02-17 Matthew Werenski , Shoaib Bin Masud , James M. Murphy , Shuchin Aeron

There are several mathematical models yielding 1/f noise. For example, 1/f spectrum can be obtained from stochastic sequence of pulses having power-law distribution of pulse durations or from nonlinear stochastic differential equations. We…

Statistical Mechanics · Physics 2014-02-12 J. Ruseckas , B. Kaulakys

This two-part paper details a theory of solvability for the power flow equations in lossless power networks. In Part I, we derive a new formulation of the lossless power flow equations, which we term the fixed-point power flow. The model is…

Optimization and Control · Mathematics 2017-09-21 John W. Simpson-Porco

We follow up an earlier work (briefly reviewed below) to investigate the temporal stability of an exact travelling front solution, constructed in the form of an integral expression, for a one-dimensional discrete Nagumo-like model without…

Pattern Formation and Solitons · Physics 2007-05-23 Priyadarshi Majudar , Avijit Lahiri