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One-way wave propagators have been used extensively in forward and inverse problems. The advantages of one-way wave propagators are the fast speed of computation and the large savings in computer resources. However, regular oneway wave propagators have inherent angle limitation to within 90°of the preferred direction ͑e.g., z-direction͒. We propose to overcome the limitation by a superwide-angle oneway method, which combines and interpolates two orthogonally propagated one-way wavefields in thedoi:10.1190/1.3124686 fatcat:tu5ury5drrflzd5we43dggtebu