针对海底石油管道超声检测信号的噪声消除问题，本文研究了基于小波分析的噪声消除方法。
Aimed at noise cancelling cut for ultrasonic inspecting signal of seabed oil pipeline flaw, a kind of noise cancellation method based on wavelet analysis is studied.
但目前小波分析处理超声检测信号的应用领域还很有限，并且应用过程中没有考虑最优小波基的选取问题。
But now the field is finite that wavelet analyses is used in the ultrasonic testing signal processing, and the problem of selecting the best wavelet didn't be considered in the application of wavelet.
实例分析表明：该模型能基本反映超声检测信号的特点，而且此算法对钛合金超声检测信号去噪效果比较理想。
Examples prove that the model can reflect the character of the ultrasonic signal and noise correctly, and the result of the denoising using this algorithm is satisfactory.
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