The radar cross-sections (RCS) at Iband for two boats were measured as a function of range and aspect angle by illuminating the boats with 9.3 GHz horizontally polarised microwaves using a purpose built coherent pulsed radar. The total RCS of a mean profile was determined for each aspect angle at which RCS profiles were obtained. The mean of these total RCS values, over all aspect angles, was 33 dBm2 for the water/fuel lighter HMAS Warrigal, and 37 dBm2 for the torpedo recovery boat HMAS Tuna.
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Moon et al. (1991) studied this question.
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