搜索结果: 1-15 共查到“理学 microwave”相关记录116条 . 查询时间(0.15 秒)
THEORETICAL MODELLING STUDY ON THE RELATIONSHIP BETWEEN MULTI-FREQUENCY MICROWAVE VEGETATION INDEX AND VEGETATION PROPERTIES (OPTICAL DEPTH AND SINGLE SCATTERING ALBEDO)
Microwave Vegetation Index Matrix Doubling Model Optical Depth Single Scattering Albedo Soil Moisture Roughness
2018/5/15
This paper presents a theoretical study of derivation Microwave Vegetation Indices (MVIs) in different pairs of frequencies using two methods. In the first method calculating MVI in different frequenc...
VALIDATION OF THE DAILY PASSIVE MICROWAVE SNOW DEPTH PRODUCTS OVER NORTHERN CHINA
Snow Depth Products Snow Cover Passive Microwave Validation Northern China
2018/5/15
Passive microwave sensors have the capability to provide information on snow depth (SD), which is critically important for hydrological modeling and water resource management. However, the different a...
A MODIFIED TWO-SCALE MICROWAVE SCATTERING MODEL FOR A GAUSSIAN-DISTRIBUTED CONDUCTING ROUGH SURFACE
Two-scale Model Rough Surface Backscattering Model Wavelet Packet Transform AIEM
2018/5/16
A modified two-scale microwave scattering model (MTSM) was presented to describe the scattering coefficient of natural rough surface in this paper. In the model, the surface roughness was assumed to b...
2017微波光子学研讨会（Workshop on Microwave Photonics: An Enabling Technology for 5G）
2017 微波光子学 研讨会
2017/9/22
5G technology will be especially demanding in several end-user requirements, such as latency, massive machine-to-machine communication, spectral efficiency, energy consumption, and data rates. In orde...
2017第一届IEEE国际微波生物会议（2017 First IEEE MTT-S International Microwave Bio Conference）
2017 第一届 IEEE国际微波生物 会议
2017/3/29
The International Microwave Bio-Conference (IMBioC) is as an international forum for the exchange of ideas and information on state-of-the-art research in microwave and RF theory and techniques that b...
Optical and Microwave Technologies offer a wide range of significant technical and operational advantages in the communication ecosystem meeting complementary needs.Breakthroughs in Optical Technologi...
The 2017 International Topical Meeting on Microwave Photonics(MWP 2017)
The 2017 International Topical Meeting Microwave Photonics
2017/2/15
Microwave Photonics (MWP) is an inter-disciplinary field of study that concerns the interactions between microwave and optical waves for the generation, processing, control and distribution of microwa...
Advances in Sea-Ice Research Based on Remotely Sensed Passive Microwave Data
Advances Sea-Ice Research Remotely Sensed Passive Microwave Data
2015/8/19
Sea-ice cover is the most significant feature of the polar ocean environment. Annual cycles of sea-ice cover and their interannual variations contribute significantly to changes in surface reflectivit...
Simulation of the microwave emission of multi-layered snowpacks using the Dense Media Radiative transfer theory: the DMRT-ML model
microwave emission multi-layered snowpacks
2014/12/12
DMRT-ML is a physically based numerical model
designed to compute the thermal microwave emission of
a given snowpack
Microwave radiometric estimation of excess electrical path - an overview
Microwave propagation delay radiometry water vapor liquid water
2014/11/25
The most promising technique available for making the vapor measurement is the use of
passive microwave radiometry. The dual frequency technique for taking care of unwanted
signal from non-prcipit...
A small discussion on microwave application for groundwater exploration: A review
Electromagnetic technique ecology geology oceanography
2014/11/24
This review article presents the electromagnetic (EM) technique are the most common
implemented methods by geophysicist for mineral exploration. The use of EM technique in
environmental and engine...
POLARBEAR seeks cosmic answers in microwave polarization（图）
microwave polarization POLARBEAR
2014/12/1
An international team of physicists has measured a subtle characteristic in the polarization of the cosmic microwave background radiation that will allow them to map the large-scale structure of the u...
Feasibility of Characterizing Snowpack and the Freeze–Thaw State of Underlying Soil Using Multifrequency Active/Passive Microwave Data
Freeze Characterizing Snowpack Freeze–Thaw State
2013/9/2
Abstract—An ensemble-based data assimilation approach isdeveloped to characterize the snow water equivalent (SWE)and underlying soil freeze–thaw tate (including the soil surfacetemperature and both so...
Sub-femtosecond absolute timing precision with a 10 GHz hybrid photonic-microwave oscillator
Sub-femtosecond absolute timing precision optics
2012/5/29
We present an optical-electronic approach to generating microwave signals with high spectral purity. By circumventing shot noise and operating near fundamental thermal limits, we demonstrate 10 GHz si...
Negative Group Velocity and Spin-Flip in Microwave Adaptors
Negative Group Velocity and Spin-Flip Microwave Adaptors Optics
2012/5/28
A Fabry-Perot like interferometer with two microwaveguide adaptors as reflectors creates a passive dielectric medium with a negative group delay time due to polarization shift. A rotational strain of ...