搜索结果: 1-12 共查到“知识库 Reflectivity”相关记录12条 . 查询时间(0.062 秒)
New developments in ground probing radar: the possibility of reconstructing a holographic image of underground reflectivity
radar imaging polarisation holography SAR
2015/9/29
During the last decade GPR has developed rapidly: instruments have become more compact and more digital, the field of application has broadened from non-destructive testing to humanitarian demining. S...
ENHANCING CONCRETE BARRIER REFLECTIVITY WITH A FOCUS ON RECYCLED GLASS AGGREGATE REPLACEMENT
CONCRETE BARRIER REFLECTIVITY RECYCLED GLASS AGGREGATE REPLACEMENT
2014/10/22
Increased accident rates during the nighttime and wet weather conditions on theUnited States highways necessitate the enhancement of highway concrete barrier visibility. The visibility of these deline...
Assimilating Doppler radar radial velocity and reflectivity observations in the weather research and forecasting model by a proper orthogonal-decomposition-based ensemble, three-dimensional variational assimilation method
Assimilating Doppler radar radial velocity and reflectivity observations in the weather research and forecasting model proper orthogonal-decomposition-based ensemble three-dimensional variational assimilation method
2013/9/2
Doppler radar observations with high spatial and temporal resolution can effectively improve the description of small-scale structures in the initial condition and enhance the mesoscale and microscale...
An Analysis of X-Band Calibrated Sea Clutter and Small Boat Reflectivity at Medium-to-Low Grazing Angles
X-Band Calibrated Sea Clutter Small Boat Reflectivity Medium-to-Low Grazing Angles
2009/9/3
The coherent temporal characteristics of medium-to-low grazing angle sea clutter and small boat reflectivity are considered for different radar waveforms under a range of environmental conditions and ...
Spatial mapping of electronic states in κ-(BEDT-TTF)2X using infrared reflectivity
organic conductor Mott transition phase separation
2010/1/19
We review our recent work on spatial inhomogeneity of the electronic states in the strongly correlated molecular conductors κ-(BEDT-TTF)2X. Spatial mapping of infrared spectra (SMIS) is used for imagi...
Raindrop size distributions and radar reflectivity–rain rate relationships for radar hydrology
radar hydrology raindrop size distribution
2009/3/24
The conversion of the radar reflectivity factor Z(mm6m-3) to rain rate R(mm h-1 ) is a crucial step in the hydrological application of weather radar measurements. It has been common practice for over ...
On the use of radar reflectivity for estimation of the areal reduction factor
use of radar reflectivity estimation areal reduction factor
2009/12/29
In order to estimate the rainfall fields over an entire basin raingauge, pointwise measurements need to be interpolated and the small-scale variability of rainfall fields can lead to biases in the rai...
Reconstruction of reflectivity vertical profiles and data quality control for C-band radar rainfall estimation
reflectivity vertical profiles data quality control C-band radar rainfall estimation
2010/1/22
Microwave Doppler radars are considered a fairly established technique to retrieve rain rate fields from measured reflectivity volumes. However, in a complex orographic environment radar observations ...
Clutter and rainfall discrimination by means of doppler-polarimetric measurements and vertical reflectivity profile analysis
Clutter and rainfall discrimination doppler-polarimetric measurements vertical reflectivity profile analysis
2010/1/22
The estimation of rainfall rate and other parameters from radar scattering volume is heavily affected by the presence of intense sea and ground clutter and echoes which appears in anomalous propagatio...
2-D spatial distribution of rainfall rate through combined use of radar reflectivity and rain gauge data
2-D spatial distribution rainfall rate radar reflectivity rain gauge data
2010/1/22
This paper describes and comments the results obtained applying a data processing method to a joint set of radar and a rain gauge data for estimating the 2-D rainfall field at ground averaged over a g...
Single Mode Optical Radiation Distribution and Reflectivity Calculations in Novel-Hot Electron Light Emission and Lasing In Semiconductor Heterostructures VCSELs
Optical Radiation Distribution Electron Light Emission Reflectivity Calculations
2010/4/12
In this work, we calculate the power reflectivity in vertical cavity surface emitting lasers (VCSELs) using a new method. In VCSELs, the stop band of the reflectivity spectrum should exhibit a dip at ...
X-Ray Reflectivity Study of Reactive DC Sputter Deposited Al2O3 Thin Films
X-Ray Reflectivity Reactive DC Sputter Al2O3 Thin Films
2010/12/15
X-ray reflection was performed on Al2O3 thin films obtained by dc magnetron sputtering of aluminium in an argon/oxygen atmosphere. Two kind of films (amorphous and γ-Al2O3) were deposited on polished ...