echo-signal meaning in English

回声信号,回波信号

Denoising in pipeline ultrasonic echo - signal based on empirical mode decomposition
基于经验模态分解的管道超声回波信号噪声消除
The paper presents a detailed scheme on the reliable recognition of the ultrasonic echo - signal in high noise background . based on the scheme , a detailed discussion of the application of the traditional digital processing methods in this field is proposed in this paper . based on the traditional methods of wavelet analysis , some of novel algorithms are also proposed in the paper and have been programmed using matlab
本文对高噪声背景下超声回波信号的可靠识别问题进行了深入研究，讨论了经典数字处理方法应用于这个问题的不足之处，并在小波分析的几种传统方法的讨论基础上，做了几点改进，以适合所要解决的超声回波信号的可靠识别问题，并进行了程序实现。