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A promising approach for multi-microphone speech separation involves two deep neural networks (DNN), where the predicted target speech from the first DNN is used to compute signal statistics for time-invariant minimum variance…

声音 · 计算机科学 2021-10-04 Zhong-Qiu Wang , Gordon Wichern , Jonathan Le Roux

We investigate the potential for controlling the effect of nonlinear Stochastic Resonance (SR) by use of harmonic mixing signals for an overdamped Brownian dynamics in a symmetric double well potential. The periodic forcing for harmonic…

统计力学 · 物理学 2007-05-23 Gerhard Schmid , Peter Hanggi

We study the possibility of removing the cyclic prefix (CP) overhead from orthogonal frequency division multiplexing (OFDM) in massive multiple-input multiple-output (MIMO) systems. We consider the uplink transmission while our results are…

Methods to efficiently determine the relative stability of polymorphs of organic crystals are highly desired in crystal structure predictions (CSPs). Current methodologies include use of static lattice phonons, quasi-harmonic approximation…

材料科学 · 物理学 2020-06-08 Nathan S. Abraham , Michael R. Shirts

Hybrid beamforming for frequency-selective channels is a challenging problem as the phase shifters provide the same phase shift to all of the subcarriers. The existing approaches solely rely on the channel's frequency response and the…

信息论 · 计算机科学 2019-03-13 Sohail Payami , Mathini Sellathurai , Konstantinos Nikitopoulos

Motivated by massive deployment of low data rate Internet of things (IoT) and ehealth devices with requirement for highly reliable communications, this paper proposes receive beamforming techniques for the uplink of a single-input…

信息论 · 计算机科学 2017-05-17 Majid Bavand , Steven D. Blostein

Neural codecs have demonstrated strong performance in high-fidelity compression of audio signals at low bitrates. The token-based representations produced by these codecs have proven particularly useful for generative modeling. While much…

音频与语音处理 · 电气工程与系统科学 2025-04-16 Patrick O'Reilly , Prem Seetharaman , Jiaqi Su , Zeyu Jin , Bryan Pardo

In a distributed storage environment, where the data is placed in nodes connected through a network, it is likely that one of these nodes fails. It is known that the use of erasure coding improves the fault tolerance and minimizes the…

信息论 · 计算机科学 2013-05-17 Bernat Gastón , Jaume Pujol , Mercè Villanueva

Orthogonal frequency division multiplexing (OFDM) is well-suited for integrated sensing and communications (ISAC), yet its cyclic prefix (CP) is dimensioned for communications-grade multipath and is generally insufficient for sensing. When…

信号处理 · 电气工程与系统科学 2026-05-12 Peishi Li , Ming Li , Rang Liu , Qian Liu , A. Lee Swindlehurst

Impedance-based small-signal stability analysis is widely applied in practical engineering with modular multilevel converters (MMCs). However, the deficiencies of existing impedance models (IMs) and the idealized extension for the single…

系统与控制 · 电气工程与系统科学 2023-03-17 Chongbin Zhao , Qirong Jiang

A new circularly pulse-shaped (CPS) precoding orthogonal frequency division multiplexing (OFDM) waveform, or CPS-OFDM for short, is proposed in this paper. CPS-OFDM, characterized by user-specific precoder flexibility, possesses the…

信息论 · 计算机科学 2024-10-30 Yenming Huang , Borching Su

Accurate and efficient wave-optics simulation of partially coherent light transport systems is critical for the design of advanced optical systems, ranging from computational lithography to diffraction-limited storage rings (DLSR). However,…

光学 · 物理学 2026-01-23 Han Xu , Ming Li , Shuo Wang , Zhe Ren , Peng Liu , Yi Zhang , Yuhui Dong , Liang Zhou

Spectral efficiency for asynchronous code division multiple access (CDMA) with random spreading is calculated in the large system limit allowing for arbitrary chip waveforms and frequency-flat fading. Signal to interference and noise ratios…

信息论 · 计算机科学 2010-07-13 Laura Cottatellucci , Ralf R. Mueller , Merouane Debbah

For 5G it will be important to leverage the available millimeter wave spectrum. To achieve an approximately omni- directional coverage with a similar effective antenna aperture compared to state of the art cellular systems, an antenna array…

信息论 · 计算机科学 2017-04-27 Kilian Roth , Josef A. Nossek

Applying a sparse constraint on the beam pattern has been suggested to suppress the sidelobe level of a minimum variance distortionless response (MVDR) beamformer. In this letter, we introduce a weighted sparse constraint in the beamformer…

信息论 · 计算机科学 2010-05-25 Yipeng Liu , Qun Wan , Xiaoli Chu

This study investigates a networked integrated sensing and communication (ISAC) system, where multiple base stations (BSs), connected to a central processor (CP) via capacity-limited fronthaul links, cooperatively serve communication users…

信号处理 · 电气工程与系统科学 2024-08-16 Kexin Zhang , Yanqing Xu , Ruisi He , Chao Shen , Tsung-hui Chang

We consider automorphism ensemble decoding (AED) of quasi-cyclic (QC) low-density parity-check (LDPC) codes. Belief propagation (BP) decoding on the conventional factor graph is equivariant to the quasi-cyclic automorphisms and therefore…

信息论 · 计算机科学 2022-08-17 Marvin Geiselhart , Moustafa Ebada , Ahmed Elkelesh , Jannis Clausius , Stephan ten Brink

Passive acoustic mapping (PAM) is a key imaging technique for characterizing cavitation activity in therapeutic ultrasound applications. Recent model-based beamforming algorithms offer high reconstruction quality and strong physical…

图像与视频处理 · 电气工程与系统科学 2026-01-13 Tatiana Gelvez-Barrera , Barbara Nicolas , Bruno Gilles , Adrian Basarab , Denis Kouamé

Voice Conversion (VC) aims to convert the style of a source speaker, such as timbre and pitch, to the style of any target speaker while preserving the linguistic content. However, the ground truth of the converted speech does not exist in a…

声音 · 计算机科学 2025-01-06 Ziqi Liang , Xulong Zhang , Chang Liu , Xiaoyang Qu , Weifeng Zhao , Jianzong Wang

Recently, the convolutional weighted power minimization distortionless response (WPD) beamformer was proposed, which unifies multi-channel weighted prediction error dereverberation and minimum power distortionless response beamforming. To…

音频与语音处理 · 电气工程与系统科学 2023-03-14 Henri Gode , Marvin Tammen , Simon Doclo