“…This was later extended to elastic media and non‐normal incidence cases (Frasier, 1970). Autocorrelation analysis of single‐station seismic recordings (e.g., ambient noise, coda waves) has been widely employed to extract body‐wave reflection phases to reveal the subsurface structures of the Earth (Delph et al., 2019; Gorbatov et al., 2013; Kennett, 2015; Oren & Nowack, 2017; Phạm & Tkalčić, 2018, 2021; Qin et al., 2020; She et al., 2022; Tibuleac & von Seggern, 2012; Zhou & Zhang, 2021) and Moon (Nishitsuji et al., 2016, 2020). Recent autocorrelation analysis on Mars detected a strong P‐wave reflection phase at 10.5–11.5 s two‐way traveltime (Compaire et al., 2021; Deng & Levander, 2020; Schimmel et al., 2021).…”