基于卡尔曼滤波的火花激发光源电压滤波研究

Research of spark excitation light source voltage filtering based on Kalman filter

针对火花激发光源电压中所含噪声对激发稳定性的影响,提出了一种复合滤波去噪方法。介绍了由限幅滤波和卡尔曼滤波组成的复合滤波原理,并进行仿真实验。仿真结果表明,对电压采样值进行复合滤波去噪能够有效地消除数据中的噪声,滤波效果理想,提高了火花激发光源电压稳定性。

In order to reduce the influence of the noise in the voltage of spark excitation source to the stability of the excitation,a new method of composite filtering is proposed. In this paper,the principle of the composite filter consisting of limiting filter and Kalman filter is introduced,and the simulation experiment is carried out. The simulation results show that the composite filter to the voltage sampling value can effectively eliminate the noise in the data,the filtering effect is ideal,and the voltage stability of the spark excitation light source is improved.