Computerized ionospheric tomography. See full list on link.

Computerized ionospheric tomography. Computerized Ionospheric Tomography (CIT) serves as a crucial method for ionospheric monitoring, playing a significant role in space environment surveillance an Jan 24, 2017 · Computerized ionospheric tomography (CIT) based on spaceborne synthetic aperture radar (SAR) is an emerging technique to construct the three-dimensional (3-D) image of ionosphere. , electron density distribution), making it one of the most important techniques for ionospheric observation. Abstract Computerized ionospheric tomography (CIT) based on spaceborne synthetic aperture radar (SAR) is an emerging technique to construct the three-dimensional (3-D) image of ionosphere. Apr 10, 2023 · The computerized ionospheric tomography technique is extensively being applied to imaging ionospheric electron density (IED) distributions based on Global Navigation Satellite System (GNSS) observations. com The Global Positioning System (GPS)-based computerized ionospheric tomography (CIT) has the capacity to reconstruct the 3-D ionosphere (i. However, predominant issues like unevenly distributed stations, a . Oct 19, 2020 · In computerized ionospheric tomography (CIT) with ground-based GNSS, the voxels without satellite-receiver ray traversing cannot be reconstructed directly. Tomographic methods were formulated by Radon in 1907 as a means of remotely mapping inaccessible regions of the body. Aug 29, 2021 · In computerized ionospheric tomography (CIT), the ionosphere is divided into three-dimensional voxels, and some voxels are not traversed by any satellite-receiver rays. e. We present a CIT algorithm based on virtual reference stations (VRSs), called VRS–CIT, to decrease the number of unilluminated voxels and improve the precision of the estimated ionospheric Dec 4, 2023 · A neural network (NN)-based initial ionospheric electron density (IED) prediction model (IED-NN) is proposed to provide high-precision initial IED for the computerized ionospheric tomography (CIT). Jun 14, 2024 · Computerized ionospheric tomography (CIT) has been an effective method for reconstructing the three-dimensional structure of ionospheric electron density since Austen first introduced computerized tomography to ionospheric observation. See full list on link. The voxel-based model is usually utilized in ionospheric tomography, with the ionosphere being divided into many cubic voxels. The current studies are all based on the Low Earth Orbit synthetic aperture radar (LEO SAR) which is limited by long repeat period and small coverage. IED-NN is based on a backpropagation NN (BPNN) and is trained with IED profiles from constellation observing system for the meteorology, ionosphere, and climate (COSMIC) and COSMIC-2 radio Jun 29, 2023 · The use of computerized tomography (CT) technology to solve the electron density distribution information enables the study of ionospheric tomography all over the world to carry out large-scale research on ionospheric electron density. Dec 9, 2024 · Due to factors such as the uneven distribution of ground receiving stations and the lack of effective observation rays, Global Positioning System (GPS)-based computerized ionospheric tomography (CIT) is typically of low quality and requires additional data sources. springer. Called computerized ionospheric tomography (CIT), it applies medical tomographic methods to the study of the ionosphere. hp6hc lza ss mr zbwjp2 bjjxes 675 r1fsps0 d3v nfcf2