2023 Volume 79 Issue 3 Article ID: F3-0127
In recent years, severe sediment-related disasters have occurred due to heavy rains. In the event of the disaster, a prompt survey is required. Therefore, the authors have developed the disaster investigation support system that aims to enhance the safety of investigators and their work efficiency by using a multi-band receiver. In this paper, the fixed-point positioning accuracy of some RTK receivers was compared at the site in Hiroshima Prefecture. The results of the multi-band receiver showed the horizontal positioning error of 22 mm or less (2DRMS) in the experiment on check dam. In another experiment in the forest, the horizontal positioning error was 0.65 m or less (2DRMS). As a result, the usefulness of the multi-band receiver in the sediment-related disaster investigation was confirmed.
