国防科技大学学报
國防科技大學學報
국방과기대학학보
JOURNAL OF NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGY
2010年
1期
112-115,132
,共5页
机械抖动激光陀螺%抖动控制%系统解耦
機械抖動激光陀螺%抖動控製%繫統解耦
궤계두동격광타라%두동공제%계통해우
DRLG(Dither Ring Laser Gyro)%dither control%system decoupling
抖动控制是影响机械抖动激光陀螺性能的重要因素,基于激光陀螺的抖动动力学响应特性,研究了一种抖动控制回路解耦方法,指出相位反馈能实现机抖激光陀螺抖动谐振频率的稳定跟踪.稳定跟踪抖动谐振频率时,如果在抖动位置零点改变驱动信号幅度,则抖幅响应可以简化为一阶惯性系统响应,抖幅控制支路可以从抖动控制回路中解耦为一阶控制回路,实现抖动控制回路的解耦,提高了激光陀螺抖动系统的控制性能.
抖動控製是影響機械抖動激光陀螺性能的重要因素,基于激光陀螺的抖動動力學響應特性,研究瞭一種抖動控製迴路解耦方法,指齣相位反饋能實現機抖激光陀螺抖動諧振頻率的穩定跟蹤.穩定跟蹤抖動諧振頻率時,如果在抖動位置零點改變驅動信號幅度,則抖幅響應可以簡化為一階慣性繫統響應,抖幅控製支路可以從抖動控製迴路中解耦為一階控製迴路,實現抖動控製迴路的解耦,提高瞭激光陀螺抖動繫統的控製性能.
두동공제시영향궤계두동격광타라성능적중요인소,기우격광타라적두동동역학향응특성,연구료일충두동공제회로해우방법,지출상위반궤능실현궤두격광타라두동해진빈솔적은정근종.은정근종두동해진빈솔시,여과재두동위치영점개변구동신호폭도,칙두폭향응가이간화위일계관성계통향응,두폭공제지로가이종두동공제회로중해우위일계공제회로,실현두동공제회로적해우,제고료격광타라두동계통적공제성능.
Dither control is an important factor for the performance of dither ring laser gyro (DRLG). The decoupling method of DRLG dither control system is studied based on gyro oscillation characteristics. It is studied that the phase feedback is a good selection to trace resonant dither frequency. On tracing resonant frequency, as well as changing amplitude of dither drive signal on the zero-position-point, the dither amplitude responses can be simplified as a 1-order system, and the dither-amplitude-control is independent to frequency-tracing to realize the decoupling control,which improves the control performance of DRLG dither control system.