An improved reconstruction algorithm for computerized ionospheric tomography

作者：Wu XB^*; Xu JS; Ma SY

来源：Chinese Journal of Geophysics, 2000, 43(1): 19-+.

• ionosphere
• tomography
• algorithm
• differential Doppler

An improved reconstruction algorithm of computerized ionospheric tomography is proposed in this paper. In this algorithm, both differential Doppler phase data and differential Doppler frequency data are exploited to solve the crucial problems of correctly calculating integral phase constant and appropriately choosing initial guess for iteration which prevalently exist in the study of computerized ionospheric tomography. The calculating of integral phase constant and the choosing of initial guess are integrated in the process of reconstruction. The algorithm avoids calculating phase constant separately before reconstruction, offering a more reasonable method to choose initial guess as well. Both numerical simulation example and reconstructed results from observed data show that the new algorithm works reasonably and effectively with ionospheric CT problems.

• 出版日期2000-1
• 单位武汉大学