Results 11 to 20 of about 4,344 (249)

Single Carrier with Frequency Domain Equalization for Synthetic Aperture Underwater Acoustic Communications [PDF]

open access: yesSensors, 2017
Phase-coherent underwater acoustic (UWA) communication systems typically employ multiple hydrophones in the receiver to achieve spatial diversity gain. However, small underwater platforms can only carry a single transducer which can not provide spatial ...
Chengbing He   +5 more
doaj   +2 more sources

A Two-Stage Time-Domain Equalization Method for Mitigating Nonlinear Distortion in Single-Carrier THz Communication Systems [PDF]

open access: yesSensors
Terahertz (THz) communication is regarded as a key technology for achieving high-speed data transmission and wireless communication due to its ultra-high frequency and large bandwidth characteristics.
Yunchuan Liu   +8 more
doaj   +2 more sources

Frequency-Domain Equalization in Single-Carrier Transmission: Filter Bank Approach

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
This paper investigates the use of complex-modulated oversampled filter banks (FBs) for frequency-domain equalization (FDE) in single-carrier systems. The key aspect is mildly frequency-selective subband processing instead of a simple complex gain factor
Markku Renfors   +3 more
doaj   +2 more sources

Prefix-Free Frequency Domain Equalization for Underwater Acoustic Single Carrier Transmissions

open access: yesIEEE Access, 2018
Prefixes, in forms of cyclic-prefixes or zero-padding, have often been viewed as indispensable in underwater acoustic single-carrier transmissions to avoid inter-block interference (IBI) and to formulate circular convolution.
Xingbin Tu, Aijun Song, Xiaomei Xu
doaj   +1 more source

Data-Aided Versus Blind Single-Carrier Coherent Receivers

open access: yesIEEE Photonics Journal, 2010
Fiber-optic research in signal processing for the first generation of coherent communication systems was dominated by receivers with blind adaptation. Next-generation systems will require a scalable and modular design for higher order modulation formats.
Maxim Kuschnerov   +8 more
doaj   +1 more source

Sustainable and Multifunctional Natural Macromolecular Polymers for Aqueous Zn Metal Batteries

open access: yesAdvanced Materials, EarlyView.
We comprehensively review the structure‐function relationships and regulatory mechanism of natural macromolecular polymers in stabilizing zinc anodes at the microscopic and mesoscopic scales. The interactions among polymer structures, optimization strategies, and regulatory mechanisms are discussed systematically summarizing recent related research ...
Yunuo Shi   +13 more
wiley   +1 more source

Blind frequency-domain channel estimation for STBC-SC-FDE systems via redundant precoding

open access: yesTongxin xuebao, 2013
A blind subspace frequency-domain channel estimation algorithm based on redundant precoding was proposed for single-carrier system with frequency-domain equalization and space-time block codes (STBC-SC-FDE) over frequency-selective fading channels.Blind ...
Yong-chuan WANG, Zi-li CHEN
doaj   +2 more sources

Least Mean Square Frequency Domain Equalization for MIMO SC-FDMA System

open access: yesZanco Journal of Pure and Applied Sciences, 2019
Because single carrier modulation has low peak average power ratio (PAPR), it is used instead of multicarrier modulation in uplink transmission in Long Term Evolution (LTE).
Maha George Zia
doaj   +1 more source

TacScope: A Miniaturized Vision‐Based Tactile Sensor for Surgical Applications

open access: yesAdvanced Robotics Research, EarlyView.
TacScope is a compact, vision‐based tactile sensor designed for robot‐assisted surgery. By leveraging a curved elastomer surface with pressure‐sensitive particle redistribution, it captures high‐resolution 3D tactile feedback. TacScope enables accurate tumor detection and shape classification beneath soft tissue phantoms, offering a scalable, low‐cost ...
Md Rakibul Islam Prince   +3 more
wiley   +1 more source

Time-Frequency Domain Turbo Equalization for Single-Carrier Underwater Acoustic Communications

open access: yesIEEE Access, 2019
Single-carrier frequency-domain equalization (SC-FDE) is a promising technique for coherent high-rate underwater acoustic (UWA) communications. In this paper, a time-frequency domain turbo equalization (TFD-TE) scheme is proposed for single-carrier ...
Chengbing He   +6 more
doaj   +1 more source

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