| 1. | The hemispherical resonator gyros ( hrg ) is a new type of gyro invented in 1960s
半球谐振陀螺是20世纪60年代才出现的一种新型陀螺。 |
| 2. | It is shown that the flp filtered signal can track the change of the output signal of hrg
滤波后发现, flp滤波能够跟踪陀螺输出信号的变化。 |
| 3. | On the aspect of signal filtering of hrg , the forward linear prediction ( flp ) filtering method is introduced first
在通过陀螺信号滤波提高半球谐振陀螺精度方面,本文引入了flp滤波方法。 |
| 4. | In the end of this chapter , the power spectrum density ( psd ) analysis of hrg is given , which shows that the main noise of hrg is low frequency noise
论文还对陀螺信号进行了功率谱密度分析,分析结果表明陀螺的主要误差都集中在低频段。 |
| 5. | Due to some factors induced by the fabrication technology and fitting process , the inevitable hrg structure error can affect the amplitude detection and control
半球谐振陀螺由于制造工艺和装配过程中的因素，其结构难免出现误差，对振幅的检测和控制产生影响。 |
| 6. | On the basis of quadrature theory and dynamic characteristics , the amplitude detection and control theory for hrg ( hemispherical resonator gyro ) is studied in this paper
摘要基于正交理论和半球谐振陀螺的动力学分析，研究了半球谐振陀螺的振幅检测和控制原理。 |
| 7. | Another advantage of flp filter is that it can build error model at each startup of hrg , which has advantage in the case that the error model changes at the startups
Flp滤波方法的另一优点是可以每次启动时进行随机建模,这就适用于每次启动时陀螺误差随机模型不同的情况。 |
| 8. | The allan variance ( av ) analysis method is used to evaluate the hrg signal . the result indicates that the main random error of hrg is angle random walk ( arw )
论文采用allan方差法对半球谐振陀螺的信号进行随机误差分析,分析结果表明,半球谐振陀螺的角度随机游走误差是陀螺随机误差的主要部分。 |
| 9. | At the end of the chapter , the output of hrg is used in the simulation . the result indicates that the eular angle error is lower after flp filtering if proper step size is chosen
本文还把半球谐振陀螺实际数据引入该算法的仿真,仿真的结果表明,选择合适的阶数可以使flp滤波后的欧拉角误差小于滤波前。 |
| 10. | On the aspect of its application feasibility in moon vehicle , a kind of orientation and positioning system based on hrg is discussed . simulation results of an attitude deducing algorithm which is based on kalman filter are present
在半球谐振陀螺应用于月球车组合导航的可行性方面,本文讨论了采用半球谐振陀螺的月球车定向定位系统,对基于kalman滤波的月球车方向姿态递推算法进行了仿真。 |
