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中文摘要：
基于序贯抗差估计方法针对简化了的旋转调制陀螺寻北仪输出信号进行了寻北仿真研究.介绍了该型寻北仪的基本原理,在经典充贯平差的基础上,结合抗差M估计的原理,得到了序贯抗差估计的计算流程与公式.将寻北仪输出信号划分为2个阶段,对上述方法进行了仿真应用.仿真结果表明：通过该算法所得寻北结果误差均值与标准差均优于其它算法.
英文摘要：
Research is carried out on output signal of simplified rotation-modulated gyro north seeker based on sequential robust estimation. Fundamental principle of the north seeker is introduced, on the basis of classical sequential adjustment method, computation procedures and formula of sequential robust estimation is deduced combining the theory of robust M estimation. Divide output signal of north-seeker to two parts, above method is simulated and applied. Simulation result shows that the mean error and standard error of north seeking result gained by the deduced algorithm is better than other algorithms.
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