摘要
舰艇在非理想状态下航行时，惯导系统中的非线性因素不能忽略，且加速度计的量测信号夹杂许多不同类型的复杂噪声信号。本文设计一种首先对加速度计的量测信号进行非线性滤波，再用低通滤波器来提取其有用的信号方法。仿真结果表明：这种方法是可行的。
Nonlinear elements of inertial navigation system can＇t be neglected when naval ship sailing in unperfeet state, and there are many different kinds of complex yawp signals among metrical signals of accelerometer. This paper designs a method which filtrates nonlinearly the metrical signals of aceelerometer at first, then distills useful signals through low-pass filter. The result of simulation indicates that this method is feasible.
