一种抗海浪扰动实时控制信号滤波方法  

A Filtering Method of Anti-waves Disturbance Real-time Control Signal

作　　者：赵江[1] 肖昌美[1] 雷霏霖[1] 江涛[1] 王超[1] 

机构地区：[1]海军装备研究院,北京100161

出　　处：《鱼雷技术》2014年第1期35-38,共4页Torpedo Technology

摘　　要：为了克服伺服控制系统中滤波效果与系统相位裕度不能兼顾,消除高频噪声会损失有用低频信号的问题,以卡尔曼滤波算法为基础,提出了一种抗海浪用实时控制信号滤波方法,该方法运用状态空间法描述系统,采用2阶自回归模型计算系统参数,以递推算法实现计算机实时处理,从而达到大幅降低信号高频噪声,抑制陀螺漂移,提取有用信号的目的。仿真结果表明,该滤波方法简单,实现方便,抑制性好,可有效减小系统的相位损失,消除了高频干扰,对提高系统带宽与系统开环增益有很大贡献。To solve the problem that filtering effect is incompatible with phase margin in servo control system, while eliminating high-frequency noise will lose useful low-frequency signal, we present a filtering method of anti-waves disturbance real-time control signal based on Kalman filter algorithm. In this method the system is described by state space method, the second-order autoregression model is used to calculate the system parameters, and recursive algorithm is adopted to achieve real-time process of computer, thus the high-frequency noise can be significantly removed, the gyro drift can be suppressed and the useful signal can be extracted. Simulation result shows that this method is simple and convenient in implementation, and has good disturbance suppression performance. Moreover, it effectively reduces the loss of system phase, eliminates the high-frequency interference, and greatly contribute improvement to the system bandwidth and the open loop gain.

关 键 词：高频噪声 实时控制 扰动 

分 类 号：TJ630.34[兵器科学与技术—武器系统与运用工程] TB53[理学—物理]