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Frequency Modulated Continuous Wave (FMCW) radar has been widely applied in automotive anti-collision systems, automatic cruise control, and indoor monitoring. However, conventional analog-to-digital converters (ADCs) can suffer from…

信号处理 · 电气工程与系统科学 2023-12-27 Qi Zhang , Jiang Zhu , Fengzhong Qu , De Wen Soh

We elaborate on the recently proposed orthogonal time frequency space (OTFS) modulation technique, which provides significant advantages over orthogonal frequency division multiplexing (OFDM) in Doppler channels. We first derive the…

信息论 · 计算机科学 2017-09-28 P. Raviteja , Khoa T. Phan , Qianyu Jin , Yi Hong , Emanuele Viterbo

In this paper, we study optimization of multi-tone signals for wireless power transfer (WPT) systems. We investigate different non-linear energy harvesting models. Two of them are adopted to optimize the multi-tone signal according to the…

信息论 · 计算机科学 2019-03-06 Boules A. Mouris , Hadi Ghauch , Ragnar Thobaben , B. L. G. Jonsson

Simulated tempering is a widely used strategy for sampling from multimodal distributions. In this paper, we consider simulated tempering combined with an arbitrary local Markov chain Monte Carlo sampler and present a new decomposition…

统计理论 · 数学 2025-10-06 Jhanvi Garg , Krishna Balasubramanian , Quan Zhou

We study the physical-layer security of a multiple source-destination (SD) pairs coexisting wireless network in the face of an eavesdropper, where an eavesdropper intends to wiretap the signal transmitted by the SD pairs. In order to…

信息论 · 计算机科学 2019-07-31 Xiaojin Ding , Yulong Zou , Xiaoshu Chen , Xiaojun Wang , Lajos Hanzo

Orthogonal time frequency space (OTFS) technique is a two-dimensional modulation method that multiplexes information symbols in the delay-Doppler (DD) domain. OTFS combats high Doppler shift existing in high speed wireless communication.…

信息论 · 计算机科学 2026-02-18 Omid Abbassi Aghda , Mohammad Javad Omidi , Hamid Saeedi-Sourck

We have developed a non-collective Thomson scattering diagnostic for measurements of electron density and temperature on the Large Plasma Device. A triple grating spectrometer with a tunable notch filter is used to discriminate the faint…

Unveiling feeder topologies from data is of paramount importance to advance situational awareness and proper utilization of smart resources in power distribution grids. This tutorial summarizes, contrasts, and establishes useful links…

最优化与控制 · 数学 2023-05-01 Deepjyoti Deka , Vassilis Kekatos , Guido Cavraro

Recent first-principles electron-phonon scattering calculations of heavily-doped semiconductors suggest that a simple DOS scattering model, wherein the electronic scattering rates are assumed to be proportional to the density-of-states,…

材料科学 · 物理学 2020-02-26 Cameron Rudderham , Jesse Maassen

We present an algorithm for the simultaneous measurement of a pulse time-of-arrival (TOA) and dispersion measure (DM) from folded wideband pulsar data. We extend the prescription from Taylor (1992) to accommodate a general two-dimensional…

天体物理仪器与方法 · 物理学 2020-06-04 Timothy T. Pennucci , Paul B. Demorest , Scott M. Ransom

Recently a number of analytic prescriptions for computing the non-linear matter power spectrum have appeared in the literature. These typically involve resummation or closure prescriptions which do not have a rigorous error control, thus…

宇宙学与河外天体物理 · 物理学 2009-11-06 Jordan Carlson , Martin White , Nikhil Padmanabhan

We describe how to implement the spectral kurtosis method of interference removal (zapping) on a digitized signal of averaged power values. Spectral kurtosis is a hypothesis test, analogous to the t-test, with a null hypothesis that the…

天体物理仪器与方法 · 物理学 2023-02-27 M. Purver , C. G. Bassa , I. Cognard , G. H. Janssen , R. Karuppusamy , M. Kramer , K. J. Lee , K. Liu , J. W. McKee , D. Perrodin , S. Sanidas , R. Smits , B. W. Stappers

Deep neural networks have achieved remarkable breakthroughs by leveraging multiple layers of data processing to extract hidden representations, albeit at the cost of large electronic computing power. To enhance energy efficiency and speed,…

This is the second part of a two-part paper on data-based distributionally robust stochastic optimal power flow (OPF). The general problem formulation and methodology have been presented in Part I [1]. Here, we present extensive numerical…

最优化与控制 · 数学 2018-10-29 Yi Guo , Kyri Baker , Emiliano Dall'Anese , Zechun Hu , Tyler H. Summers

We present a multi-tip scanning tunneling potentiometry technique that can be implemented into existing multi-tip scanning tunneling microscopes without hardware changes. The resulting setup allows flexible in situ contacting of samples…

介观与纳米尺度物理 · 物理学 2015-12-08 F. Lüpke , S. Korte , V. Cherepanov , B. Voigtländer

Sampling a quantum systems underlying probability distributions is an important computational task, e.g., for quantum advantage experiments and quantum Monte Carlo algorithms. Tensor networks are an invaluable tool for efficiently…

量子物理 · 物理学 2026-02-03 Alec Dektor , Eugene Dumitrescu , Chao Yang

We study the problem of sampling a random signal with sparse support in frequency domain. Shannon famously considered a scheme that instantaneously samples the signal at equispaced times. He proved that the signal can be reconstructed as…

信息论 · 计算机科学 2012-11-22 Adel Javanmard , Andrea Montanari

This paper proposes an analytic model for dimensioning OFDMA based networks like WiMAX and LTE systems. In such a system, users require a number of subchannels which depends on their \SNR, hence of their position and the shadowing they…

机器人学 · 计算机科学 2012-04-05 Laurent Decreusefond , Eduardo Ferraz , Philippe Martins , Thanh-Tung Vu

In this paper an approach for decreasing the computational effort required for the spectral simulations of the water waves is introduced. Signals with majority of the components zero, are known as the sparse signals. Like majority of the…

计算物理 · 物理学 2015-12-22 Cihan Bayindir

An optical frequency comb generated with an electro-optic phase modulator and a chirped radiofrequency waveform is used to perform saturation and pump-probe spectroscopy on the $D_1$ and $D_2$ transitions of atomic potassium. With a comb…

原子物理 · 物理学 2016-12-21 David A. Long , Adam J. Fleisher , David F. Plusquellic , Joseph T. Hodges
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