Applying the technique of computer tomography to ionosphere detection,Computerized Ionospheric Tomography(CIT) can produce the large scale distribution of electron density in a two dirnentional longitudinal section o...Applying the technique of computer tomography to ionosphere detection,Computerized Ionospheric Tomography(CIT) can produce the large scale distribution of electron density in a two dirnentional longitudinal section of ionosphere. According to the actual detecting condition of sparse receiver and limited projecting angle,polynomial interpolation method and projecting angle expansion method are proposed. A new energy function is formulated according to the constraint of least neighbourhood error. Simulated annealing is incorporated in the iteration of ART to get the global minimum of energy function.展开更多
文摘Applying the technique of computer tomography to ionosphere detection,Computerized Ionospheric Tomography(CIT) can produce the large scale distribution of electron density in a two dirnentional longitudinal section of ionosphere. According to the actual detecting condition of sparse receiver and limited projecting angle,polynomial interpolation method and projecting angle expansion method are proposed. A new energy function is formulated according to the constraint of least neighbourhood error. Simulated annealing is incorporated in the iteration of ART to get the global minimum of energy function.
