中文摘要：

针对旋转式惯性导航系统中旋转角速度选取无理论支撑的问题,提出了一种旋转角速度的设计原则.利用旋转式惯导系统误差模型及拉氏变换、拉氏反变换理论求解出系统速度误差的解析表达式.利用理论推导,提出旋转角速度的设计原则.利用该原则能够准确得到在特定的惯性器件水平下的最优旋转角速度.在理论分析的基础上进行了仿真和试验验证,仿真和试验结果均表明,采用该原则所设计出的旋转角速度时系统的定位精度高于其他旋转角速度,验证了该设计原则的有效性.

英文摘要：

Aiming at the problem that there is no theoretical support for the optimal selection of the rotation angular rate of rotary strapdown inertial navigation system （INS）, a design principle of the rotation angular rate is proposed in this paper. The analytical expressions of the system velocity error is obtained by using the rotary SINS error model, La- place transform and inverse Laplace transform methods. The design principle of the rotation angular rate is proposed ac- cording to the theoretical analysis ,with which the optimal rotation angular rate can be accurately obtained for specific inertial device. Simulation and experiment were carried out based on the theoretical analysis. The simulation and experi- ment results show that adopting the rotation angular rate designed with the proposed principle, the system positioning accuracy is higher than that for other rotation angular rates, which verifies the effectiveness of the design method.