Results 31 to 40 of about 4,022,934 (291)
Remote Sensing, 2021 To acquire the enhanced underwater ship-radiated noise signal in the presence of array shape distortion in a passive sonar system, the phase difference of the line-spectrum component in ship-radiated noise is often exploited to estimate the time-delay ...
Chuanqi Zhu +5 more
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Rapid fluorescent mapping of electrochemically induced local pH changes
Advanced Sensor and Energy Materials, 2022 We present a fluorescent microscopic method using an ultra-pH-sensitive polymeric probe to rapidly map within subsecond the pH distribution resulting from oxygen reduction reaction electrocatalysed by an array of platinum nanoparticles.
Jia Gao +4 more
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Bayesian Fusion Based Robust Array Shape Estimation for Distorted Towed Hydrophone Array
Journal of Marine Science and EngineeringTowed hydrophone arrays are widely employed for underwater target detection and direction-of-arrival (DOA) estimation. However, array shape distortion induced by ocean currents, internal waves, and platform maneuvers severely degrades beamforming ...
Chuanqi Zhu +3 more
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Machine Learning Technique Using the Signature Method for Automated Quality Control of Argo Profiles
Earth and Space Science, 2020 A profile from the Argo ocean observation array is a sequence of three‐dimensional vectors composed of pressure, salinity, and temperature, appearing as a continuous curve in three‐dimensional space. The shape of this curve is faithfully represented by a
Nozomi Sugiura, Shigeki Hosoda
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The Retrieval of Drop Size Distribution Parameters Using a Dual-Polarimetric Radar
Remote Sensing, 2023 The raindrop size distribution (DSD) is vital for applications such as quantitative precipitation estimation, understanding microphysical processes, and validation/improvement of two-moment bulk microphysical schemes.
GyuWon Lee +2 more
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Array shape estimation via piecewise subarray beamforming [PDF]
The Journal of the Acoustical Society of America, 1986 Deformation produced when towing a linear array can remove L-R ambiguities in conventional beam patterns, provided the beamformer knows the deformed array shape. In practice, however, this shape is usually unknown. Thus it is desirable to have a processor that determines the shape and uses this information to form the beams. A method which accomplishes
Deanna M. Caveny +3 more
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L-shaped coprime array structures for DOA estimation
Multidimensional Systems and Signal Processing, 2019 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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New Directions In Sparse Sampling and Estimation For Underdetermined Systems [PDF]
, 2013 A central objective in signal processing is to infer meaningful information from a set of measurements or data. While most signal models have an overdetermined structure (the number of unknowns less than the number of equations), traditionally very few ...
Piya Pal, Pal, Piya
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Iraqi Geological Journal, 2023 Landslide investigation in Laeya Village of North Buton Regency, Indonesia, is necessary since this area is frequently experiencing landslides.
Jamhir Safani +5 more
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An L-shaped array for estimating 2-D directions of wave arrival [PDF]
IEEE Transactions on Antennas and Propagation, 1991 A simple structured 2-D array, the L-shaped array, is presented. The L-shaped array consists of two uniform linear arrays (ULA) connected orthogonally at one end of each ULA. It is shown that the Cramer-Rao bounds (CRB) of the estimated wave directions based on the L-shaped array are about 37% smaller than those for the cross array.
Hua, Y, Sarkar, TK, Weiner, DD
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