信息与控制2011，Vol.40Issue(1)：8-13,6.DOI:10.3724/SP.J.1219.2011.00008
泄漏信号定位中的时延估计算法
Time Delay Estimation Algorithms for Leak Signal Location
摘要
Abstract
The basic principle of leak location and leak signal models are analyzed.A variety of time delay estimation (TDE) algorithms such as cross-correlation(CC), generalized cross-correlation(GCC), and the adaptive least mean square (LMS), etc.are also studied.These TDE algorithms which show different anti-noise capability, are applied to diverse application scenarios.Experiments are conducted on a synthesis acoustic signal to estimate the time delay and compare the performance of the algorithms in the conditions that time delay is diverse while the signal noise ratio is equivalent and time delay is equivalent while the signal noise ratio is diverse.The cross-correlation method is used to leak location for oil pipeline, and the error of location results is not more than 5％关键词
时延估计/相位变换广义相关/最大似然广义相关/自适应最小均方/泄漏检测分类
信息技术与安全科学引用本文复制引用
杨荣根,任明武,杨静宇..泄漏信号定位中的时延估计算法[J].信息与控制,2011,40(1):8-13,6.基金项目
国家自然科学基金资助项目(60875010). （60875010）
