Translations:Ghost reflection/1/en

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An explosion in a lower medium (medium 2) initiates an upgoing pulse and a downgoing pulse. The upgoing pulse is reflected at the interface of medium 2 with an upper medium 1, and the downgoing reflected pulse (called the ghost reflection) forms a composite wavelet with the primary downgoing pulse (Figure 3). What will this composite wavelet look like? Suppose that the upper layer is very soft — for example, air, with . The upgoing reflection coefficients are