Results 191 to 200 of about 11,790 (229)
Some of the next articles are maybe not open access.
The ERS-1 microwave radiometer
International Journal of Remote Sensing, 1994Abstract The microwave radiometer on board ERS-1 developed at CRPE has two channels at 23·8 and 36·5 GHz. It is a nadir pointing sensor, aimed at the correction of the altimeter tropospheric path delay. It also provides the precipitable water and cloud liquid water over oceans along the satellite track. However, the measured brightness temperatures can
L. EYMARD, A. LE CORNEC, L. TABARY
openaire +1 more source
Dual frequency microwave radiometer
2010A dual-frequency microwave radiometer has been developed to remotely sense water vapor and liquid in the troposphere. An optimum frequency pair, 20.60 and 31.65 GHz, is adopted. The system consists of two Dicke radiometers (one at each frequency), both of which are controlled by a microcomputer system and mounted on a rotatable pedestal.
Yao, Zhuanliang +8 more
openaire +1 more source
Microwave vegetation indices derived from satellite microwave radiometers
SPIE Proceedings, 2008Vegetation indices are valuable in many fields of geosciences. Conventional, visible-near infrared, indices are often limited by the effects of atmosphere, background soil conditions, and saturation at high levels of vegetation. In this study, the theoretical basis for a new type of passive microwave vegetation indices (MVIs) based on data from the ...
T. J. Jackson, J. C. Shi, J. Tao
openaire +1 more source
Microwave vegetation indexes derived from satellite microwave radiometers
2007 IEEE International Geoscience and Remote Sensing Symposium, 2007Major uncertainties in deriving vegetation indices from satellite measurements are the effects of atmosphere and background soil conditions. Through numerical simulations by surface emission model - Advanced Integral Equation Model (AIEM), we found that bare surface emissivities at different frequencies can be well characterized by a linear function ...
null Jiancheng Shi +4 more
openaire +1 more source
Antenna systems for microwave radiometers
Nanotechnology : the development , application - XXI CenturyThe paper provides an overview of the antenna systems used for microwave radiometers. Due to the development of precision agriculture, the use of radiometers for monitoring soil moisture relief is becoming relevant. Microminiaturization of antenna systems expands the possibility of using radiometers using unmanned aerial vehicles and ground-based ...
A.G. Gudkov +3 more
openaire +1 more source
Radiometer for Microwave Thermography
19th European Microwave Conference, 1989, 1989I.M. Angelov +7 more
openaire +1 more source