APPLIED GEOPHYSICS     2025 22 (3):  588-599    ISSN: 1672-7975  CN: 11-5212/O

An Improved FFT Algorithm for Spherical Harmonic Analysis and Synthesis
Su Yong*, Zhang Li-wei
1. School of Civil Engineering and Geomatics, Southwest Petroleum University, Chengdu 610500, China
Received: 2024-11-22  Revised: 2025-04-02  Online: null
Supporting info