基于非理想情况对加速度计信号的滤波

Signal Filtrating of Accelerometer for Imperfect Condition

为消除舰艇加速度计的噪声信号，提出一种先对信号用扩展卡尔曼滤波器进行非线性滤波，再用巴特沃斯低通滤波器来提取其有用信号的方法，仿真结果表明此方法能够有效地消除舰艇在非理想状态时加速度计的复杂噪声。

In order to clear up the noise signals of the accelerometer in the ship, a method that signals are dealt with by nonlinear filter, useful signals are distilled by low-pass filter is presented. The result of simulation indicates that this method is feasible to clear up the complex noise of accelerometer when ships sail in imperfect condition.