Results 31 to 40 of about 14,550 (304)

Extended Signal-Correction Observer and Application to Aircraft Navigation [PDF]

IEEE Transactions on Industrial Electronics, 2020
In this paper, an extended signal-correction observer (ESCO) is presented for signals correction and estimation, which not only can reject the large measurement error, but also the system uncertainty can be estimated, in spite of the existence of intense stochastic non-Gaussian noise.
Xinhua Wang 0001, Weicheng Wang
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Locating industrial VOC sources with aircraft observations

Environmental Pollution, 2011
Observation and characterization of environmental pollution, focussing on Volatile Organic Compounds (VOCs), in a high-risk industrial area, are particularly important in order to provide indications on a safe level of exposure, indicate eventual priorities and advise on policy interventions.
P Toscano, B Gioli, S Dugheri, A Salvini, A Matese, A Bonacchi, A Zaldei, V Cupelli, F Miglietta   +8 more
openaire   +7 more sources

Evaluation of Cloud Microphysical Properties Derived From MODIS and Himawari‐8 Using In Situ Aircraft Measurements Over the Southern Ocean

Earth and Space Science, 2020
Cloud microphysical properties from aircraft measurements during the Southern Ocean Clouds, Radiation, Aerosol Transport Experimental Study are used to evaluate the cloud products from the geostationary satellite Himawari‐8 (H‐8) and the polar‐orbiting ...
Lijun Zhao, Chuanfeng Zhao, Yang Wang, Yuan Wang, Yikun Yang   +4 more
doaj   +1 more source

Comparison of aircraft observations with ensemble forecast model results in terms of the microphysical characteristics of stratiform precipitation

Atmospheric and Oceanic Science Letters, 2020
The prediction of the particle number concentration and liquid/ice water content of cloud is significant for many aspects of atmospheric science. However, given the uncertainties in the initial and boundary conditions and imperfections of microphysical ...
Yuan FU, Hengchi LEI, Jiefan YANG, Jiaxu GUO, Jiangshan ZHU   +4 more
doaj   +1 more source

Potential of observations from the Tropospheric Emission Spectrometer to constrain continental sources of carbon monoxide [PDF]

, 2003
We have conducted an observing system simulation experiment for the Tropospheric Emission Spectrometer (TES) satellite instrument to determine the potential of nadir retrievals of carbon monoxide (CO) from this instrument to constrain estimates of ...
Jones, D.B.A., Hoffman, R.N., Jacob, D.J., Bowman, K. W., Palmer, P. I., Bowman, K.W., Jacob, D. J., Hoffman, R. N., Worden, J.R., Jones, D. B. A., Yantosca, R. M., Palmer, P.I., Yantosca, R.M., Worden, J. R., Bey, I.   +14 more
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Aircraft navigation based on differentiation–integration observer

Aerospace Science and Technology, 2017
In this paper, a generalized differentiation-integration observer is presented based on sensors selection. The proposed differentiation-integration observer can estimate the multiple integrals and high-order derivatives of a signal, synchronously. The parameters selection rules are presented for the differentiation-integration observer. The theoretical
Wang, Xinhua, Cai, Lilong
openaire   +3 more sources

Evaluation of single-footprint AIRS CH₄ profile retrieval uncertainties using aircraft profile measurements [PDF]

Atmospheric Measurement Techniques, 2021
We evaluate the uncertainties of methane optimal estimation retrievals from single-footprint thermal infrared observations from the Atmospheric Infrared Sounder (AIRS).
S. S. Kulawik, J. R. Worden, V. H. Payne, D. Fu, S. C. Wofsy, S. C. Wofsy, K. McKain, K. McKain, C. Sweeney, B. C. Daube Jr., B. C. Daube Jr., A. Lipton, A. Lipton, I. Polonsky, Y. He, K. E. Cady-Pereira, E. J. Dlugokencky, D. J. Jacob, D. J. Jacob, Y. Yin   +19 more
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Monitor for Anti-Aircraft Guidance and Observation Systems [PDF]

Problemy Mechatroniki, 2019
The fire control system operator’s monitor unit displays the video feed from online video cameras and fire control system-generated on-screen data overlays.
Rafał KRUK, Zbigniew REMPAŁA
doaj   +1 more source

Research on a Measurement Method for Middle-Infrared Radiation Characteristics of Aircraft

Machines, 2022
Aiming at the problem wherein temperature inversion accuracy is unstable due to the major differences in atmospheric transmittance under various observation paths, a method for measuring radiation characteristics of an aircraft engine’s hot parts and ...
Xuan Deng, Yueming Wang, Guicheng Han, Tianru Xue   +3 more
doaj   +1 more source

Analysis of Natural Laminar Flow Aircraft based on Airline Network Design and Fleet Assignment

, 2011
This paper demonstrates the evaluation of a future aircraft concept equipped with natural laminar fow technology (NLF) based on airline network design and fleet assignment.
Matthias Braun, Koch, Alexander, Alexander Koch, Tobias Wunderlich, Wunderlich, Tobias, Braun, Matthias, Kai Wicke, Wicke, Kai   +7 more
core   +1 more source