旋转惯导系统误差自补偿原理分析及试验验证  

Errors autocompensation principle analysis and experiments verification for rotational inertial navigation systems

作　　者：李魁[1] 徐烨烽[1] 张仲毅[1] 张京娟[1] 

机构地区：[1]北京航空航天大学仪器科学与光电工程学院,北京100191

出　　处：《系统工程与电子技术》2011年第10期2268-2271,共4页Systems Engineering and Electronics

基　　金：国家自然科学基金(61079017;60804056);航空科学基金(20080851020)资助课题

摘　　要：为分析旋转惯导系统误差自补偿原理,分别推导陀螺漂移的随机常值分量、时间相关分量以及随机游走分量在捷联惯导系统和旋转惯导系统中造成的角度误差及其统计特性,并进行对比。结果表明,旋转可将陀螺漂移中的常值分量完全调制并能抑制时间相关分量的影响,但对随机游走分量造成的误差无调制效果。采用0.1(°)/h漂移率的陀螺和0.2mg偏置的加速度计研制旋转惯导系统样机并进行导航试验,试验结果表明,该系统可以达到0.2nmile/h导航精度。To analyze the autocompensation principle of rotational inertial navigation systems （INS）, plaform misalignment and its statistic characteristics in strapdown INS and rotational INS caused by gyro drifts, which can be divided into the random constant components, time-related components and random walk compo nents, are discussed and compared. The results show that the rotational INS can eliminate errors caused by the constant components of the drifts, and can restrain that caused by the time-related components, but it has no effect s on the random walk components. Rotational INS configured with the gyros of 0.1 （°）/h drifts and accelerom eters of 0.2 mg biases is used to do the verification experiments and a 0.2 n mile/h navigation accuracy is achieved.

关 键 词：惯性导航 误差分析 陀螺漂移 加计零偏 

分 类 号：U666.1[交通运输工程—船舶及航道工程]