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This paper describes an online algorithm for enhancing monaural noisy speech. Firstly, a novel phase-corrected low-delay gammatone filterbank is derived for signal subband decomposition and resynthesis; the subband signals are then analyzed…

声音 · 计算机科学 2015-07-09 Zhangli Chen , Volker Hohmann

Using coherent optical detection and digital signal processing, laser phase noise and equalization enhanced phase noise can be effectively mitigated using the feed-forward and feed-back carrier phase recovery approaches. In this paper,…

信息论 · 计算机科学 2016-09-23 Tianhua Xu , Gunnar Jacobsen , Sergei Popov , Jie Li , Tiegen Liu , Yimo Zhang , Polina Bayvel

Integrated sensing and communication (ISAC) is a promising technology in future wireless systems owing to its efficient hardware and spectrum utilization. In this paper, we consider a multi-input multi-output (MIMO) orthogonal frequency…

信号处理 · 电气工程与系统科学 2023-10-24 Peishi Li , Zichao Xiao , Ming Li , Rang Liu , Qian Liu

Quantum phase estimation is a paradigmatic problem in quantum sensing andmetrology. Here we show that adaptive methods based on classical machinelearning algorithms can be used to enhance the precision of quantum phase estimation when noisy…

量子物理 · 物理学 2021-09-01 Nelson Filipe Costa , Yasser Omar , Aidar Sultanov , Gheorghe Sorin Paraoanu

This paper aims to answer a fundamental question in the area of Integrated Sensing and Communications (ISAC): What is the optimal communication-centric ISAC waveform for ranging? Towards that end, we first established a generic framework to…

信息论 · 计算机科学 2025-07-22 Fan Liu , Ying Zhang , Yifeng Xiong , Shuangyang Li , Weijie Yuan , Feifei Gao , Shi Jin , Giuseppe Caire

In this paper, a receiver algorithm consisting of differential transmission and a two-stage detection for a single-input multiple-output (SIMO) phase-noise channels is studied. Specifically, the phases of the QAM modulated data symbols are…

信息论 · 计算机科学 2015-09-14 M. Reza Khanzadi , Rajet Krishnan , Thomas Eriksson

In this paper, the problem of optimal maximum likelihood detection in a single user single-input multiple-output (SIMO) channel with phase noise at the receiver is considered. The optimal detection rules under training are derived for two…

信息论 · 计算机科学 2016-11-18 Antonios Pitarokoilis , Emil Björnson , Erik G. Larsson

In this paper, we propose a novel pulse shaping design for single-carrier integrated sensing and communication (ISAC) transmission. Due to the communication information embedded in the ISAC signal, the resulting auto-correlation function…

信号处理 · 电气工程与系统科学 2024-05-08 Zihan Liao , Fan Liu , Shuangyang Li , Yifeng Xiong , Weijie Yuan , Marco Lops

An inverse source reconstruction (ISR) based 3-D near-field (NF) passive radar microwave imaging method utilizing modulated signals is presented. The modulated signals from a non-cooperative transmitter are scattered by the targets of…

图像与视频处理 · 电气工程与系统科学 2026-05-06 Quanfeng Wang , Alexander H. Paulus , Thomas F. Eibert

Nonlinear phase noise, often called the Gordon-Mollenauer effect, can be compensated electronically by subtracting from the received phase a correction proportional to the received intensity. The optimal scaling factor is derived…

光学 · 物理学 2013-01-15 Keang-Po Ho , Joseph M. Kahn

A decentralized approach for joint frequency and phase synchronization in distributed antenna arrays is presented. The nodes in the array share their frequencies and phases with their neighboring nodes to align these parameters across the…

信号处理 · 电气工程与系统科学 2022-12-06 Mohammed Rashid , Jeffrey A. Nanzer

The rapid development of 5G New Radio (NR) and millimeter-wave (mmWave) communication systems highlights the critical importance of maintaining accurate phase synchronization to ensure reliable and efficient communication. This study…

信号处理 · 电气工程与系统科学 2024-12-10 Desire Guel , Flavien Herve Somda , Boureima Zerbo , Oumarou Sie

The aim of this study is to implement a method to remove ambient noise in biomedical sounds captured in auscultation. We propose an incremental approach based on multichannel non-negative matrix partial co-factorization (NMPCF) for ambient…

In this letter we study the design of algorithms for estimation of phase noise (PN) with colored noise sources. A soft-input maximum a posteriori PN estimator and a modified soft-input extended Kalman smoother are proposed. The performance…

信息论 · 计算机科学 2014-07-18 M. Reza Khanzadi , Rajet Krishnan , Thomas Eriksson

When the input signal is correlated input signals, and the input and output signal is contaminated by Gaussian noise, the total least squares normalized subband adaptive filter (TLS-NSAF) algorithm shows good performance. However, when it…

信号处理 · 电气工程与系统科学 2023-07-21 Haiquan Zhao , Zian Cao , Yida Chen

Motivated by the ideal peak-to-average-power ratio and radar sensing capability of traditional frequency-coded radar waveforms, this paper considers the frequency shift keying (FSK) based waveform for joint communications and radar (JCR).…

信息论 · 计算机科学 2025-07-14 Tian Han , Peter J Smith , Urbashi Mitra , Jamie S Evans , Rajitha Senanayake

The resonances of forced dynamical systems occur when either the amplitude of the frequency response undergoes a local maximum (amplitude resonance) or phase lag quadrature takes places (phase resonance). This study focuses on the phase…

动力系统 · 数学 2021-08-25 Martin Volvert , Gaetan Kerschen

A contactless control of mean values and fluctuations of position and velocity of a nanoobject belongs among the key methods needed for ultra-precise nanotechnology and the upcoming quantum technology of macroscopic systems. An analysis of…

A fully digital beam position and phase measurement (BPPM) system was designed for the linear accelerator (LINAC) in Accelerator Driven Sub-critical System (ADS) in China. Phase information is obtained from the summed signals from four…

仪器与探测器 · 物理学 2019-09-25 Xingshun Gao , Lei Zhao , Jinxin Liu , Zouyi Jiang , Xiaofang Hu , Shubin Liu , Qi An

The sensitivity in optical interferometry is strongly affected by losses during the signal propagation or at the detection stage. The optimal quantum states of the probing signals in the presence of loss were recently found. However, in…