DIGITAL DATA PROCESSING TECHNIQUE FOR NON-DESTRUCTIVE INSPECTION OF PILES BY REFLECTED WAVE

With respect to the single processing means for the inspection signal of pile,based on the time-domain waveform analysis of reflected wave for non destructive inspection of pile,the authors apply the digital data processing technique,such as frequency spectrum analysis,digital filting,correlation analysis and three instantaneous calculation and so on for the quality inspection of a pile.These methods are accurate and efficient in pile inspection.