并将该诊断系统实际应用到KM178F小型柴油机的故障诊断中,通过对其声信号的实际识别表明效果良好。
The effect is also testified by putting it into the use on the fault diagnosis of the KM178F mini-diesel.
当研究水声信道和信号在其中的检测效果时,利用本文的结果可以选择最佳的接收方向。
Investigating the channel of the underwater sound and the effect of the signal detection in it, by utilizing the obtained results, the optimum receiving direction can be chosen.
后者直接应用广义s变换的时频谱实现,用于含高斯白噪声信号的滤波,达到了突出有效信号和压制噪声的效果。
Another applied in filtering signal containing Gaussian white noise is computed directly by utilizing time-frequency spectrum of GST, which can enhance non-stationary signal and suppress noise.
由于发动机噪声的频率成分比较复杂,如果采用主动降噪技术不能适时采集到源噪声信号,就达不到理想的降噪效果。
Because engine noise takes on complicated frequency characteristics, if original noise signal is not collected, the noise control effect will not be evident.
试验结果表明,在选择了适当的小波基函数和阈值的情况下,采用小波变换的消噪方法对舰船辐射噪声信号进行消噪处理,可以取得良好的效果。
The results prove that we can get a very effective outcome by the method of wavelet transformation if the adaptive wavelet base and threshold value are chosen.
对已有改进自适应算法性能进行分析,并尝试将其应用于有源滤波器谐波检测中。实验表明这些变步长算法的性能极易受到系统中噪声信号的干扰,改进效果不明显。
A number of conventional time-varying step size algorithms have been tried on the active filter, and experiments indicate that their performance is highly sensitive to the noise disturbance.
对已有改进自适应算法性能进行分析,并尝试将其应用于有源滤波器谐波检测中。实验表明这些变步长算法的性能极易受到系统中噪声信号的干扰,改进效果不明显。
A number of conventional time-varying step size algorithms have been tried on the active filter, and experiments indicate that their performance is highly sensitive to the noise disturbance.
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