{'fraction_non_alphanumeric': 0.018995929443690638, 'fraction_numerical': 0.021709633649932156, 'mean_word_length': 5.417391304347826, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Short pulse backscattering by a rough surface: analytical results and computer simulation of travel times and intensities of the earliest arrivals

Statistical properties of travel times and intensities of the first two arrivals of short pulses backscattered by a Gaussian rough surface in two-dimensions are obtained by computer simulation. Two specific cases are investigated: a collimated incident beam that is sufficiently wide with a plane wavefront, and a spherical wavefront generated by a point source located sufficiently far from the surface. The simulated results obtained are in a good agreement with theoretical estimates published recently by Fuks and Godin (see Waves in Random and Complex Media, 2004, 14 (2004) 539–562).