摘要
应用独立分量分析 (ICA)方法对海底管道缺陷漏磁法检测中电磁干扰的消除进行了研究 ,阐述了漏磁检测和负熵法ICA快速算法的原理 ,应用相应的分析工具研究了试验数据。结果表明 ,在试验室条件下该方法能很好地分离出缺陷信号和电磁干扰信号。
Independent component analysis (ICA) method was used to decrease the electromagnetic noises in the inspection of seabed pipelines by magnetic flux leakage method. The principle of magnetic flux leakage testing and negentropy law of ICA were introduced. Experimental data were processed using relative analysis tools and results showed that ICA was used to separate defect signals from electromagnetic noises effectively in laboratory.
出处
《无损检测》
2003年第6期317-319,共3页
Nondestructive Testing
基金
国家 8 63计划资助项目 (2 0 0 1AA60 2 0 2 1)