“…However, in the case of the cross‐polarisations, some non‐Bragg scatter components varied rapidly, such as gravitational wave scatter and breaking wave scatter, are dominant. That means sea clutter in the two co‐polarisations is much stronger than that in the cross‐polarisations [33]. Hence, in terms of (12), the cross‐polarisations may have higher ASCRs than the co‐polarisations at most of the data sets.…”