Application of Bispectrum Estimationin Digital Earthquake Precursory Monitoring Data
기관명 | NDSL |
---|---|
저널명 | 西北地震學報 = Northwestern seismological journal |
ISSN | 1000-0844, |
ISBN |
저자(한글) | LIU, Xiqiang,ZHOU, Yanwen,LI, Hong,WANG, Mei,SHI, Yuyan,ZHANG, Kun |
---|---|
저자(영문) | |
소속기관 | |
소속기관(영문) | |
출판인 | |
간행물 번호 | |
발행연도 | 2007-01-01 |
초록 | The test results for emulative signal indicate that the time delay estimation method of bispectrum has the capacity to suppress Gauss noise and can accurately estimate the time delay of signals. Compared with Fourier transform method, the spectrum power reconstruction method of bispectrum has higher accuracy and capability.The research results show that the characteristic parameter distribution of bispectrum has a good consistent characteristics to the normal earthquake precursory monitoring data, but has a obvious dispersion characteristics to the abnormal data,which indicats that bispectrum has the discrimination capability to earthquake precursory anomalies in monitoring data. |
원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=NART51686576 |
첨부파일 |
과학기술표준분류 | |
---|---|
ICT 기술분류 | |
DDC 분류 | |
주제어 (키워드) | Bispectrum theory,Time delay estimation,Power spectrum reconstruction,Bispectrum characteristic parameter,Earthquake precursory anomaly discrimination |