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首页> 外文会议>Saint Petersburg International Conference on Integrated Navigation Systems; 20030526-28; St.Petersburg(RU) >SOME WAYS OF IMPROVING THE TECHNICAL AND OPERATIONAL CHARACTERISTICS OF STRAPDOWN INERTIAL NAVIGATION SYSTEMS
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SOME WAYS OF IMPROVING THE TECHNICAL AND OPERATIONAL CHARACTERISTICS OF STRAPDOWN INERTIAL NAVIGATION SYSTEMS

机译：改善捷联惯导系统技术和运行特性的几种方法

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摘要

The brief review designed in institute the methods of increase of accuracy the inertial sensors of strapdown inertial systems (SINS) - laser gyroscopes (LG) and accelerometers is resulted. In the basis of these methods: for LG - improved method of compensation of influencing of dither mechanism on an output signal of the device and "intellectual" control the resonator oscillations ensuring essential noise reduction in a signal; for accelerometers - measuring method of their parameters the ensuring calibration accuracy is not worse than 0,5 arc. second (1σ), that almost on the order better used now. The offered method of calibration called "scalar", does not require the expensive equipment for precise orientation of accelerometers that considerably makes cheaper process. Usage of a scalar method improves effective accuracy of accelerometers at the expense of a decrease of a level of "reserves" in the tolerances necessary for compensation the errors of calibration. The main attention in the report is given to last researches, directional on guarantee the fulfillment of the requirements on duration and accuracy of the alignment SINS on the oscillating basis and usage the new conditions, obtained before result ins. The new approaches to allocation of acceleration vector G from its sum with arbitrary vector of a linear acceleration of object is described, the capabilities of its usage are substantiated at the alignment, and are cited data about method accuracy. In connection with increase of the requirements to reliability SINS the concern to redundant measuring systems has increased. The outcomes of researches verifying a capability of calibration by a scalar method of redundant meters of a linear acceleration with not orthogonal location of accelerometers with the same accuracy are resulted as well as at calibration of orthogonal triads.
机译：通过对机构设计的简要回顾，得出了提高捷联惯性系统（SINS）的惯性传感器-激光陀螺仪（LG）和加速度计的精度的方法。在这些方法的基础上：对于LG –补偿抖动机制对设备的输出信号的影响的改进方法，并且“智能”控制谐振器振荡，从而确保信号中的基本噪声降低；对于加速度计-参数的测量方法，确保校准精度不低于0.5弧度。秒（1σ），几乎可以更好地利用现在的顺序。提供的校准方法称为“标量”，不需要昂贵的设备即可对加速度计进行精确定位，从而大大降低了过程的成本。标量方法的使用提高了加速度计的有效精度，但以补偿补偿校准误差所必需的公差的“储备”水平降低为代价。该报告的主要关注点是最近的研究，方向是保证在振动的基础上满足对对准SINS的持续时间和精度的要求，并使用在结果之前获得的新条件。描述了从加速度矢量G的总和到对象的线性加速度的任意矢量来分配加速度矢量G的新方法，在对齐时证实了其使用能力，并引用了有关方法精度的数据。随着对可靠性SINS要求的提高，对冗余测量系统的关注也增加了。研究结果证实了通过线性加速度冗余仪表的标量方法进行标定的能力，该加速度计的加速度计不具有正交的位置，并且具有相同的精度，以及正交三脚架的校准。

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