Abstract:

In order to determine the boundary of ancient wall remains and to understand their distribution direction, the γ-ray spectrometry was employed to detect the areas of Liangzhu ancient ruins. Because of the γ-ray spectrometry data measured usually influenced by terrain, climate, statistical fluctuation, local interference factors, etc., the authors provided a method to correct the surface influence factors by calibration factor obtained from the statistical analysis on the soil data affected by ground factors such as different composition, humidity, vegetation, etc., and the method of wavelet filtering was employed to suppress both local interference and statistical fluctuation. Though the contrast with the result of multi-point smoothing method, this processing procedure has a better suppression on local interference factors and statistical fluctuation, and the 40-meter-wide boundary of ancient wall remains was clearly showed in the result image. The result obtained was coincided with the excavation result. This had been played an important role in the determination of ancient wall remains.

Key words: archeological detection exploration, γ-ray spectrometry, wavelet filtering