| 摘要: |
| 为了提高某小型化制导仪中的低精度三轴MEMS（Micro-electromechanical Systems）陀螺仪的测量精度，建立了误差补偿模型，并基于三轴转台安排了标定试验，求得模型参数，并进行解耦验证。由于惯性器件温度漂移和温度测量过程中的滞后现象，针对陀螺仪进行-40℃~50℃的温度标定试验，采用一元高阶模型对陀螺仪温度漂移误差进行补偿，并通过MATLAB对该温度范围内的标定测试数据进行曲线拟合，得到零位相对温度变化的的拟合函数，并分离出相应的系数。试验结果表明，采用该种标定与误差补偿方法比传统方法节省了大量时间和人力，而且还能够快速标定出温度系数，从而有效地提高了陀螺仪的测量精度。 |
| 关键词: 制导仪 三轴MEMS陀螺仪 误差补偿 标定 |
| DOI： |
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| 基金项目: |
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| Research on Calibration and Error Compensation Technology ofMiniaturization MEMS Micro-mechanical Missile Director |
| CHEN Rui-juan,WU Chun-mei |
| (Guizhou Aerospace Control Technology Co.，Ltd.) |
| Abstract: |
| In order to improve the measure performance of low-accuracy three axes MEMS（Micro-electromechanical Systems）gyroscope which is in the miniaturization missile director，the error compensation model of gyroscope was analyed.Based on three axes turntable，calibration experiment has been implemented.Parameters got in the experiment have been used to decouple.Because of the inertial sensor temperature drift and temperature hysteresis，calibration experiments from -40℃ to 50℃ have been implemented.High order model of one variable has been used to compensation temperature drift of gyroscope.Use of calibration data，curve fitting method can be employed to get fitting function and to extract corresponding coefficients.The results show that this calibration-compensation method could save us much time and manpower，further more it could effectively improve the measure accuracy of the gyroscope. |
| Key words: Missile director Three axes MEMS gyroscope Error compensation Calibration |
