Results 141 to 150 of about 2,689 (195)

A Multifrequency Microwave Radiometer

[Proceedings] IGARSS'91 Remote Sensing: Global Monitoring for Earth Management, 2005
A three-frequency microwave radiometer was completed in 1990 in the Laboratory of Space Technology, HUT. The instrumentwas designed to be installed onboard a helicopter. Functional description of the radiometer will be given along with its performance parameters. The radiometer is used for remote sensing of snow, ice and forest.
E. Panula-Ontto, L. Kurvonen, M. Hallikainen   +2 more
openaire   +1 more source

1420 MHz Microwave Radiometer

2006 16th International Crimean Microwave and Telecommunication Technology, 2006
1420 MHz microwave radiometer for remote sensing investigations is presented. Microwave radiometers for this purpose must be stable and sensitive in presence of strong electromagnetic interference.
D. Skulachev, A. Rukavicyn
openaire   +1 more source

Validation of QuikSCAT Radiometer rain rates using the TRMM microwave radiometer

IEEE International Geoscience and Remote Sensing Symposium, 2003
The primary mission of the SeaWinds scatterometer on the QuikSCAT satellite is to infer surface wind vector from ocean backscatter measurements. Occasionally the backscatter measurements are contaminated by the presence of rain; therefore a reliable method of identifying rain is needed.
W.L. Jones, K. Ahmad, null Jun-Dong Park, T. Kasparis, J. Zec   +4 more
openaire   +2 more sources

Handheld L-Band Microwave Radiometer

2006 IEEE MicroRad, 2006
Continued support for remote sensing science requires increased awareness of the general public towards the benefits of this important tool. Unfortunately, information about remote sensing instrumentation and techniques remains inaccessible to many higher-educational institutions due to high cost and lack of expertise and other resources.
E. Chikando, J.R. Piepmeier, E. Levine, C. White   +3 more
openaire   +1 more source

Microwave radiometer spatial resolution enhancement

IEEE Transactions on Geoscience and Remote Sensing, 2005
Scanning radiometer data processing can allow enhancing the limited intrinsic spatial resolution. This is important for data fusion. Mathematically, the problem to be solved is an inverse ill-posed problem. In this paper we compare the classical Backus-Gilbert inversion method with the truncated singular value decomposition (TSVD) one.
MIGLIACCIO, Maurizio, GAMBARDELLA A.
openaire   +2 more sources

Reflection-free microwave radiometer

IEEE Transactions on Instrumentation and Measurement, 1993
A new microwave radiometer is proposed to make it possible to compare a noise source independently of its reflection coefficient. It is a modification of a correlation radiometer with a 3-dB, quadrature (90 degrees ) hybrid coupler instead of a 180 degrees one as the input hybrid junction followed by a noise injection circuit for realizing temperature ...
openaire   +1 more source

Airborne microwave rain-scatterometer /radiometer

International Journal of Remote Sensing, 1982
Abstract An airborne microwave rain-scatterometer/radiometer system operated at 10 and 34-45 GHz was developed for the remote sensing of precipitation, especially rain, from an aeroplane. Airborne rain-scatterometers were developed as a first step for the development of the future spaceborne rain-scatterometer.
K. OKAMOTO, S. YOSHIKADO, H. MASUKO, T. OJIMA, N. FUGONO, K. NAKAMURA, J. AWAKA, H. INOMATA   +7 more
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A Microwave Feedback Radiometer

IEEE Transactions on Aerospace and Electronic Systems, 1967
Two versions of a microwave feedback radiometer have been built and tested. One used an electromechanical feedback system; the other, an all-electronic system. The response of the servo loops proved to be fast enough and linear enough for almost any radiometer application. The rms noise fluctuation was the same as that of a Dicke radiometer.
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TRMM microwave radiometer algorithms

Proceedings of IGARSS '93 - IEEE International Geoscience and Remote Sensing Symposium, 2002
The TRMM Microwave Imager (TMI) is a modified SSM/I. Significant modifications include: the addition of 2 channels at 10.7 GHz (H and V polarization), a shift of the 22.235 GHz V channel to 21.4 GHz H, and increasing the cone angle from 45/spl deg/ to 49/spl deg/.
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SMAP Microwave Radiometer Calibration Revisit

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
The SMAP L-band microwave radiometer has completed its 3-year primary mission of measuring soil moisture and freeze/thaw state globally for quantifying the water and carbon cyclces. Instrument behavior is stable over the past 3 years and 9 months.
Jinzheng Peng, Sidharth Misra, Jeffrey Piepmeier, Simon Yueh, Emmanuel Dinnat, David Le Vine, Thomas Meissner, Priscilla Mohammed   +7 more
openaire   +1 more source