CAJ | 학술논문

采用旋转调制技术，研究了以动调陀螺为角速率传感器的全姿态寻北仪。为了控制有色噪声对动态寻北的影响，利用观测残差建立了有色噪声的AR模型，对有色噪声进行了拟合与预报，并利用改正后的观测信息、基于抗差估计原理构造了高崩溃污染率的初值辅以IGGⅢ方案迭代解算的混合算法。计算结果表明：采用AR模型对有色噪声进行拟合与预报，能够有效控制有色噪声的影响，并提高动态寻北的精度和可靠性。
채용선전조제기술，연구료이동조타라위각속솔전감기적전자태심북의。위료공제유색조성대동태심북적영향，이용관측잔차건립료유색조성적AR모형，대유색조성진행료의합여예보，병이용개정후적관측신식、기우항차고계원리구조료고붕궤오염솔적초치보이IGGⅢ방안질대해산적혼합산법。계산결과표명：채용AR모형대유색조성진행의합여예보，능구유효공제유색조성적영향，병제고동태심북적정도화가고성。
An all-attitude north seeker adopting rotary modulation technology is researched, which employs dynamically tuned gyroscope as angular velocity sensor. In order to control influence of colored noises on dynamic north seeking,AR model of colored noise is established and model parameters are fitted as well as colored noises are predicted by using observation residuals. On the basis of robust estimation,a mixed iterative algorithm based on high breakdown point initial value and assisted by IGG Ⅲ scheme is constructed by using corrected observations. The cal-culations show that fitting and predicting colored noises by adopting AR model can effectively control influence of colored noises on dynamic north seeking. In turn,precision and reliability of dynamic north seeking are improved.