Results 91 to 100 of about 578,586 (234)

Microwave Radiometer Resolution Optimization Using Variable Observation Times

open access: yesRemote Sensing, 2010
This manuscript first revises the performance of total power, Dicke-type and noise-injection microwave radiometers. Equations for the radiometric resolution are revised or derived, and their performance in terms of the radiometric resolution improvement ...
Adriano Camps, Jose Miguel Tarongí
doaj   +1 more source

Spectral Outgoing Longwave Radiation Derived From the Polar Radiant Energy in the Far Infrared Experiment (PREFIRE) Measurements: Algorithms and Validations

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 4, 28 February 2026.
Abstract The far‐infrared (>16 μm) spectrum plays a crucial role in Earth's radiation budget but was rarely observed from space before 2024. Two Polar Radiant Energy in the Far Infrared Experiment (PREFIRE) satellites, PREFIRE2 (SAT‐2) and PREFIRE1 (SAT‐1), were launched in 2024.
Xiuhong Chen   +9 more
wiley   +1 more source

Intersensor Calibration of Spaceborne Passive Microwave Radiometers and Algorithm Tuning for Long-Term Sea Ice Trend Analysis Based on AMSR-E Observations

open access: yesRemote Sensing
Sea ice monitoring is key to analyzing the Earth’s climate system. Long-term sea ice extent (SIE) has been continuously monitored using various spaceborne passive microwave radiometers (PMRs) since November 1978. As the lifetime of a satellite is usually
Mieko Seki   +4 more
doaj   +1 more source

Correction of the SMAP Sea Surface Brightness Temperature and Retrieval of Sea Surface Salinity Incorporating CYGNSS Observables

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The correction of sea surface brightness temperature is crucial for improving the accuracy of sea surface salinity (SSS) retrieval by L-band microwave radiometer.
Zheng Li   +3 more
doaj   +1 more source

1/f-Noise Estimation From Microwave Imager Data With Periodic Gaps

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
We describe a method to estimate coefficients ${{{\bm{h}}}_{\bm{n}}}$ of a power spectral density of the form ${\bm{\Sigma}}{{{\bm{h}}}_{\bm{n}}}/{{{\bm{f}}}^{\bm{n}}}$ (${\bm{f}}\;{\bm{\ }}\text{is}$ the frequency and integer ${\bm{n}} \geq 0$) from ...
Sayak K. Biswas   +4 more
doaj   +1 more source

Multifrequency Microwave Radiometry for Characterizing the Internal Temperature of Biological Tissues. [PDF]

open access: yesBiosensors (Basel), 2022
Villa E   +6 more
europepmc   +1 more source

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