双谱特征在地下输水管道泄漏检测中的应用

Bispectrum Feature Applied to the Leakage Detection of Underground Conveying Water Pipelines

非高斯信号处理是信号处理的一个新领域。阐述了地下输水管道泄漏检测系统原理 ,并利用双谱时延估计法对地下输水管道漏点进行检测和定位 ,提高了准确性和精确性。实验结果表明 。

Researching non Gaussian signal is a new field of signal processing. The authors describe the principle of the leakage detection of underground conveying watering pipelines ,and use Bispectrum Feature Time Delay Estimation to estimate the position of the goal, and then to locate it in the leakage location of underground conveying water pipelines.The experimental results indicate that high order spectrum has great potentialities in the leakage detection of underground conveying water pipelines.