A5101965399- Ocean Waves and Remote Sensing
- Oceanographic and Atmospheric Processes
- Coastal and Marine Dynamics
- Scientific Research and Discoveries
- Precipitation Measurement and Analysis
- Planetary Science and Exploration
- Acoustic Wave Phenomena Research
- Soil Moisture and Remote Sensing
- Astro and Planetary Science
- Electromagnetic Scattering and Analysis
- Underwater Acoustics Research
- Microwave Engineering and Waveguides
- Spectroscopy and Laser Applications
- Meteorological Phenomena and Simulations
- Photoacoustic and Ultrasonic Imaging
- Advanced Fluorescence Microscopy Techniques
- Advanced Sensor and Control Systems
- Electromagnetic Simulation and Numerical Methods
- Wind and Air Flow Studies
- Wave and Wind Energy Systems
- Advanced Biosensing Techniques and Applications
- Cell Image Analysis Techniques
- Spacecraft and Cryogenic Technologies
Huazhong University of Science and Technology
2011-2025
Nankai University
2019
The comparison and verification of ocean wave spectrum by remote sensing in-situ measurements at the spectral level is quite rare, because use traditional method lead to very limited spatio-temporal matching pairs. In this paper, a new proposed. With method, under different sea conditions (wind mainly/swell mainly) surface speed smaller than 20m/s, significant height from 1m 7m), mean directional spectra SWIM (Surface Waves Investigation Monitoring) are compared buoy counterparts, in classes...
We present and demonstrate an efficient method for the reconstruction of profiles acquired by multifocal structured illumination microscopy (MSIM) utilizing few raw images. Firstly, we propose a to produce nine images with enhanced modulation depth accomplish uniform sample. Then, combing parameter arrays, perform standard construct procedure (SIM) row column column. Finally, combine these restored together obtain final image resolution good contrast. Based on theoretical analysis numerical...
Keihm [1984] made a study on the effects of rough lunar surface microwave brightness temperature using geometric optics (GO), which is valid only when wavelength much smaller than radius curvature surface. This approach deficient because it has no explicit dependence. The Chang'E‐1 Lunar Orbiter carried out remote sensing maria where can be regarded as “slightly” rough, and this motivated our study. We model mare regolith multilayer planar layered media with slightly top surface, profile...
Speckle noise is inherent to radar measurements. For applications which need both a high temporal and spatial resolution, classical method for the reduction of speckle by filtering backscattered signal may not be sufficient. In particular, when observations are used estimate ocean wave spectra from relative fluctuations within given footprint, must implemented correct effect in Fourier domain (i.e., density spectrum). A theoretical background model spectrum with near-nadir incidences was...
One of the scientific objects for Chang'E (CE) project is estimating regolith depth from brightness temperature (TB) measured by a multi-channel radiometer at 3GHz, 7.8GHz, 19.35GHz and 37GHz. To establish accurate microwave radiation or scattering model lunar surface, firstly we need to determine an dielectric constant regolith. However, until now there no suitable band between 3GHz-37GHz. In this paper, extract normalized deviation τ CE-1 TB data, which filter out diurnal variation impact...
It is known that the slope probability density function (pdf) of sea surface non-Gaussian and can be expressed as a Gram-Charlier to fouth-order expension, including seven parameters: variances in upwind crosswind direction, two skewness coefficients three peakedness coefficients. Cox Munk[1] had gotten all parameters varying with wind speed using optical data. However, those for at band microwave are different, until now it not clear what values are. Wave scatterometer kind sensor specially...
The small perturbation method (SPM) for rough surface scattering has been studied extensively in many fields such as optics, remote sensing and propagation, while the energy conservation SPM is not clear. In this paper, based on Huygens' Principle extinction theorem, used to derive second order transmitted field. By calculating reflectivity transmittance of first order, we can study region validity method. It shown that violates energy, solutions conform conservation. This particularly...
SWIM can provide global wave spectra, but under small sea conditions, the presence of parasitic peaks at low wavenumber, surfboard effects, and residual speckle noise lead to performance degradation height spectrum products. To reduce impacts factors above on spectrum, in this paper, a convolution neural network (CNN) method based BU-Net is proposed for calibrating omnidirectional spectra with buoy measurements states (wind mainly/swell mainly) surface conditions speed from 9m/s 19m/s,...