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在大失准角条件下,研究了自抗扰捷联罗经对准算法.基于欧拉平台误差角概念建立了适用于自抗扰控制的二阶水平通道状态空间模型.以水平速度误差作为量测实现水平姿态对准,从稳定的水平通道指令角速度中提取方位失准角信息,完成方位自对准.仿真结果表明,该对准算法可较快地实现大失准角的自对准且对准精度与经典罗经对准法相当.
Under the condition of large misalignment angle, the algorithm of self-anti-jamocarlo compass alignment was studied.A second-order horizontal channel state-space model suitable for ADRC was established based on the concept of error angle of Euler platform.The horizontal velocity error The alignment of horizontal attitude is measured and the information of azimuth misalignment is extracted from the stable horizontal channel command angular velocity to complete the azimuth self-alignment.The simulation results show that the alignment algorithm can realize the self-alignment of large misalignment angle quickly Alignment accuracy is comparable to classical compass alignment.