论文部分内容阅读
在分析当前的解调方法原理和实现方法的基础上，针对宽带解调方法将不包括故障的两时域相加信号，也以频率之差作为调制信号解出而引起误诊断的特点［４］，提出将带通滤波与希尔伯特变换和细化重抽样有机结合起来的解调算法。提高了解调分析的速度和精度，克服了希尔伯特变换应用的局限性。
Based on the analysis of the principle and implementation of the current demodulation method, the broadband demodulation method will not include the added signals of the two time domains of the fault, but also the characteristic of misdiagnosis caused by the difference of the frequency as the demodulated signal [4 ], A demodulation algorithm combining band-pass filtering with Hilbert transform and thinning resampling is proposed. Improve the speed and accuracy of demodulation analysis, and overcome the limitations of Hilbert transformation.