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