Abstract
Ships and their wakes can often be detected in the high‐resolution synthetic aperture radar (SAR) imagery provided by satellites. Image processing techniques can be used to enhance extremely weak ship wake patterns, but occasionally, the ship in the SAR image remains invisible. In the SAR image below (Figure 1), two trailing, dark, turbulent wakes are seen. In addition to the dark, turbulent wakes, one side of a ship's Kelvin wake can sometimes be seen as a bright line. One of the ships is seen as a bright spot caused by backscattering at the end of the trail above A in Figure 1. The other ship remains hidden, however.
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