At present, indoor positioning technology is used in all aspects of life. I study the positioning method of UWB radar network. Because of the interference in the indoor environment, the UWB radar measurement data produce abnormal values. In order to eliminate the outliers, the method of fitting the known true value with the actual measured value is used to obtain the linear relationship between the true value and the measured value, so as to get the unknown true value through the measured value.

Bidirectinal muographic measurements were conducted at the ancient burial mound built in the beginning of the 6th century and later collapsed after a landslide caused by the 1596 Fushimi Earthquake, one of the largest earthquakes over last few centuries in Japan. The result indicated large-scale vertical cracks at the top of the mound, which caused its collapse and thus, an intrinsic problem was suggested with the stability of the basic foundation of the mound before this earthquake.