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Smart green ocean underwater IoT network by ICA-based acoustic blind MIMO OFDM transceiver
Multi-Input Multi-Output (MIMO) telecommunication systems with Orthogonal Frequency Division Modulation (OFDM) scheme support high rate data exchange...
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Orthogonal Frequency Division Multiplexing Adaptive Technology for Multinode Users of Seawater Channel Based on Inductively Coupled Mooring Chain
As an important part of buoy-type ocean monitoring systems, the inductively coupled mooring chain solves the problem of data cotransmission through...
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Enhanced Data Transmission Rate of XCTD Profiler Based on OFDM
An expendable conductivity-temperature-depth profiler (XCTD) is one of the most important instruments used to obtain hydrological data, such as...
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Design Method of an Ocean Induction Coupling Chain Communication System that Resists the Multipath Effect of a Seawater Channel
In this study, a mathematical model of multipath channels is established, and the delay parameters of 10-path models are calculated at 300 m. A...
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Advances and applications of machine learning in underwater acoustics
Recent advancements in machine learning (ML) techniques applied to underwater acoustics have significantly impacted various aspects of this field,...
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Improving the operation safety of the high-speed train by catenary carrier communication and nanotechnology
The birth of nanotechnology plays a leading role. China’s high-speed railway train operation has high reliability, but its safety still has defects....
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RETRACTED ARTICLE: Ultra-reliable low latency communication technique for agriculture wireless sensor networks
The wireless networks do not consider ultra-high reliability and low latency (URLL) as the primary factors. There is a delay-tolerant, non-critical...
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Underwater Acoustic Signal Noise Reduction Based on a Fully Convolutional Encoder-Decoder Neural Network
Noise reduction analysis of signals is essential for modern underwater acoustic detection systems. The traditional noise reduction techniques...
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Control System Design and Implementation at Flexible, Distributed Offshore Sensor Test Sites in the Yangtze Estuary Area
Marine in situ testing is a necessary step for stereoty** newly developed marine sensors. The use of test sites in the Yangtze Estuary area, which...
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High-resolution pressure transducer design and associated circuitry to build a network-ready smart sensor for distributed measurement in oil and gas production wells
Miniaturized single-mode thickness-shear pressure transducer combined with high-temperature SOI, silicon on insulator, integrated circuit technology...
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RETRACTED ARTICLE: Parameter estimation based on rainfall water characteristics and garlic nutrition human gastrointestinal absorption calculation
This paper proposes an envelope-based ultrasonic echo signal parameter estimation algorithm, elaborates the influence of Gaussian white noise on the...
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Road impact assessment modelling on plants diversity in national parks using regression analysis in comparison with artificial intelligence
Increasing urban demand and population growth in cities have led to an increase in demand for develo** new ways. Parchin–Pasdaran Road, which runs...
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Variability of microphysical characteristics in the “21·7” Henan extremely heavy rainfall event
In this study, significant rainfall microphysical variability is revealed for the extremely heavy rainfall event over Henan Province in July 2021...
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A new iterative algorithm for a rank-deficient adjustment model with inequality constraints
This paper is concerned with the rank-deficient problem of least squares adjustment models with inequality constraints. First, the problem under...
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A Localization Algorithm Using a Mobile Anchor Node Based on Region Determination in Underwater Wireless Sensor Networks
At present, most underwater positioning algorithms improve the positioning accuracy by increasing the number of anchor nodes which resulting in the...
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High-resolution and Wide-swath UWB OFDM MIMO Synthetic Aperture Radar System Using Image Fusion
MIMO radar has received significant attention to radar communities recently. This paper presents a novel scheme for wide-swath and high-resolution...
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Performance evaluation of MSK and OFDM modulations for future GNSS signals
The objective of this work is to investigate the performances of orthogonal frequency division multiplexing (OFDM) and minimum frequency shift keying...
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An ARM-based debugging system for multi-pole array acoustic logging tools
This paper presents a debugging system for multi-pole array acoustic logging (MPAL) tools. The debugging system proposed in this study can debug the...
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Maximum likelihood channel estimation algorithm combines logarithm likelihood ratio decoding in the coal mine application
The environment of the wireless communication system in the coal mine has unique characteristics: great noise, strong multiple path interference, and...
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Computation of the key parameters of radio signals propagating through a perturbed ionosphere in the land-satellite channel
An analysis of the key parameters of HF/UHF radio signals was carried out for land-satellite radio channels, which determine the effects of fading in...