Results 241 to 250 of about 5,369,509 (275)

Cross-calibration between airborne SAR sensors

IEEE Transactions on Geoscience and Remote Sensing, 1993
A comparative study of data acquired by two different airborne synthetic aperture radar (SAR) sensors from the same site is presented. External, ground-target-based calibration has been performed on the NASA/JPL DC-8 SAR C-band data and the DLR E-SAR C-band data collected over the DLR test site in Oberpfaffenhofen.
Zink, M., Olivier, Ph. *), Freeman, A. **)   +2 more
openaire   +2 more sources

A Satellite Cross-Calibration Experiment

IEEE Geoscience and Remote Sensing Letters, 2004
Recently, the Advanced Earth Observing Satellite 2 (ADEOS-2) was launched (December 14, 2002) successfully, and the Global Imager (GLI) onboard the ADEOS-2 satellite became operational in April 2003. In a first calibration checkup, the radiometric performance of GLI was compared relatively to that of other sensors on different satellites with different
J. Nieke, T. Aoki, T. Tanikawa, H. Motoyoshi, M. Hori   +4 more
openaire   +1 more source

The Official Positions of the International Society for Clinical Densitometry: Cross Calibration, Least Significant Change, and Quality Assurance in Multiple Dual-Energy X-Ray Absorptiometry Scanner Environments.

Journal of clinical densitometry, 2019
In preparation for the International Society for Clinical Densitometry Position Development Conference (PDC) 2019 in Kuala Lumpur, Malaysia, a cross-calibration and precision task force was assembled and tasked to review the literature, summarize the ...
L. Jankowski, Sarah Warner, K. Gaither, L. Lenchik, B. Fan, Ying Lu, John A. Shepherd   +6 more
semanticscholar   +2 more sources

Truths cross-calibration uncertainty tool

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015
This paper describes a set of tools, algorithms and methodologies that have been developed and used in order to estimate the radiometric uncertainty achievable for a Sentinel 2/3 like sensor through in-flight cross-calibration using a well-calibrated hyperspectral SI traceable reference sensor such as the proposed TRUTHS (Traceable Radiometry ...
Javier Gorrono, Nigel Fox, Agnieszka Bialek, Paul Green, Tracy Scanlon   +4 more
openaire   +1 more source

Improved SAR Radiometric Cross-Calibration Method Based on Scene-Driven Incidence Angle Difference Correction and Weighted Regression

IEEE Transactions on Geoscience and Remote Sensing
Traditional absolute radiometric calibration methods for synthetic aperture radar (SAR) face challenges in terms of flexibility, maintenance, and calibration frequency.
Yongsheng Zhou, Bopeng Yang, Q. Yin, Fei Ma, Fan Zhang   +4 more
semanticscholar   +1 more source

OCO/GOSAT Preflight Cross-Calibration Experiment

IEEE Transactions on Geoscience and Remote Sensing, 2010
The Orbiting Carbon Observatory (OCO) by NASA's Jet Propulsion Laboratory (JPL) and Greenhouse gases Observing SATellite (GOSAT) by JAXA were built to provide independent measures of the global distributions of carbon dioxide (CO2) from space. GOSAT achieved a successful orbit on January 23, 2009, and OCO failed its launch attempt on February 24, 2009.
F. Sakuma, C.J. Bruegge, D. Rider, D. Brown, S. Geier, S. Kawakami, A. Kuze   +6 more
openaire   +1 more source

Cross Calibration by FFT Equalization

Journal of Dynamic Systems, Measurement, and Control, 1997
The classical calibration problem is primarily concerned with comparing an approximate measurement method with a very precise one. Frequently, both measurement methods are very noisy, so we cannot regard either method as giving the true value of the quantity being measured.
openaire   +1 more source

A Cross-Calibration Study of GE Lunar iDXA and GE Lunar DPX Pro for Body Composition Measurements in Children and Adults.

Journal of clinical densitometry, 2019
OBJECTIVE To cross-calibrate dual energy X-ray absorptiometry machines when replacing GE Lunar DPX-Pro with GE Lunar iDXA. METHODS A cross-sectional study was conducted in 126 children (3-19 years) and 135 adults (20-66 years).
A. Khadilkar, S. Chiplonkar, N. Sanwalka, V. Khadilkar, R. Mandlik, Veena Ekbote   +5 more
semanticscholar   +1 more source

Assessment of bidirectional reflectance effects on desert and forest for radiometric cross-calibration of satellite sensors

, 2020
Cross-calibration is a wildly used approach to radiometrically calibrate satellite sensors to meet uncertainty requirements. However, its accuracy is greatly influenced by bidirectional reflectance distribution function (BRDF) effects. To understand such
Qu Zhou, L. Tian, Jian Li, Wenkai Li
semanticscholar   +1 more source

The importance of cross-calibration and protecting water temperature sensors against direct solar radiation heating in hydrological studies

, 2020
Water temperature monitoring is important in many scientific studies. This study compares three models of water temperature sensors (Vemco Minilog II, HOBO TidbiT and HOBO Pendant) to test the importance of: (1) using cross-calibration to minimize ...
D. Caissie, N. El‐Jabi
semanticscholar   +1 more source