2.倒频谱处理技术由于实验环境的复杂及测试技术方面的困难,长期处于恶劣运用工况中的铁路轴承的故障信号频谱较图6更为复杂。为分析这类调制信号,还可采用倒频谱处理技术。倒频谱技术是分离频谱中缓慢变化的成分与波 2. Cuts spectrum processing technology Due to the complexity of the experimental environment and the testing technology, the frequency spectrum of the fault signal of the railway bearing, which has been in a bad use condition for a long time, is more complicated than that in FIG. 6. To analyze such modulated signals, cepstral spectrum processing techniques can also be used. Cepstrum technology is the separation of slowly changing components of the spectrum and waves