【摘要】 介绍了信号自适应处理的基本方法和自适应对消原理 ,利用正弦合成信号和正弦与噪声合成信号的对消实例验证了该方法。在对PZ1 2V1 90B型柴油机缸盖振动信号的分析中 ,用非爆发段信号作为待消信号 ,对原信号进行了对消 ,抑制了噪声及其他信号 ,突出了有效信号。更多还原

【Abstract】 The basic method of adaptive signal processing and the principles of canceling are introduced. The interference canceling is proved by processing sines signal and sines noise signal with this method. In the processing of the vibration signal picked from cylinder cover of PZ12V190B diesel engine, the adaptive signal is canceled by taking the no working stroke signal as canceling signal. This method can get good results in restraining noise and getting effective signal.更多还原