基于遗传算法自适应滤波器稳态条件下的误差分析

The Analysis of the Error with the Adaptive Filter on the Basis of the Genetic Algorithm on the Steady Condition

在机械故障诊断稳态条件下 ,用遗传算法自适应滤波器进行信号处理时 ,滤波结果有时会产生误差。这与输入信号中的有用信号和参考信号有关 ,两者包含的频率成份不能相等 ;若两者相等 ,则滤波结果的有用信号便会失真 ,与真值相比出现偏差 。

Sometimes on the steady condition of the mechanical failure, errors occur in the signal processing handled with the adaptive filter on the basis of the genetic algorithm, which is related to the input useful signal and the reference signal. The component frequencies of the two must not be equal.As if they are equal, the useful signal of the flitting outcome would be distorted, and an error would occur if compared with the real value. Great attention should be paid to it in its application.