JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI ›› 2005, Vol. 22 ›› Issue (4): 30-33.
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YANG Yu-Shan, LIU Tian-You, WANG Fa-Gang, LI Yuan-Yuan
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Abstract: Based on the higher -order -statistics (HOS), a new method for identifying geologic cavities was introduced. By bispectrum time -frequency analysis (BTFA) to GPR signals, the variation of Gaussian properties generated from the geologic cavities to identify it was obtained. Theoretical and experimental results indicated that, the higher -order -statistics method is capable of recognizing the non-Gaussian signals under the disturbance of the strong Gaussian noise, and it can obtain clearer results than traditional methods when being applied to detect cavities.
YANG Yu-Shan, LIU Tian-You, WANG Fa-Gang, LI Yuan-Yuan. Weak Signal Identification Method Based on Higher-order Statisticsand Its Application in Detecting Cavities[J]. JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI, 2005, 22(4): 30-33.
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http://ckyyb.crsri.cn/EN/Y2005/V22/I4/30