CAJ | 학술논문

针对捷联惯导系统中光纤陀螺零偏在快速启动和不同温度条件下漂移较大的问题,从理论和大量试验上研究了其静态时、温漂特性,建立了影响导航系统姿态精度的温度漂移误差补偿的数学模型,并给出了模型参数.试验结果表明,该光纤陀螺零偏的温度输出特性具有较好的重复性,补偿后其在全温工作范围内的航向和姿态保持精度达到0.5(°)/300 s,较补偿前提高了60%以上,并将准备时间由原来的3 min缩短到10 s内,满足某型弹载系统要求.
침대첩련관도계통중광섬타라령편재쾌속계동화불동온도조건하표이교대적문제,종이론화대량시험상연구료기정태시、온표특성,건립료영향도항계통자태정도적온도표이오차보상적수학모형,병급출료모형삼수.시험결과표명,해광섬타라령편적온도수출특성구유교호적중복성,보상후기재전온공작범위내적항향화자태보지정도체도0.5(°)/300 s,교보상전제고료60%이상,병장준비시간유원래적3 min축단도10 s내,만족모형탄재계통요구.
Aimed at the problem of the zero drift of the fiber gyros in INS under the conditions of various temperature and quick turn-on, the static time and temperature characteristic are studied through theory and experiments. The error model was established to compensate the drift and also the parameters were given in details. Tests showed that the static drift' characteristic of the fiber gyros is repeated well. After compensating, the azimuth and attitude of the gyro working in the whole temperature range reaches 0.5(° )/300 s, increasing more than 60%. And the preparation time reduced from 3 minutes to 10 seconds, which meets the demand of the relevant system's demand.