捷联惯测组合快速标定测试及性能自评估技术研究  

The study on fast calibration test and performance self-estimation technology of strapdown inertial messurement unit

作　　者：李春权 

机构地区：[1]中国航天科工集团第九总体设计部,武汉430040

出　　处：《战术导弹控制技术》2012年第2期1-7,共7页

摘　　要：介绍了一种捷联挠性惯测组合快速标定方法及性能评估方法。该方法利用加速度表和陀螺的误差模型。通过特定的速率和科学编排的十二位置，解算出捷联挠性惯测组合的标定参数．使测试设备可在不进行对北和调节水平的情况下进行标定；同时采用均方根偏差和惯测组合精度预测等方法，对其性能进行自评估。目前该方法通过大量的工程试验验证，证明其可缩短捷联挠性惯测组合测试时间，提高其测试效率，延长了其使用寿命，并可克服过去靠频繁翻位置检测其弊端，可广泛应用航天、航空军事领域和民用领域惯性器件测试。This paper introduces a fast calibration and performance estimation method of the strapdown flex IMU. Referring to the error model of accelerometers and gyros, through specifically designed angular rates and positions, the method can resolve the error parameters of the strapdown flex IMU. In addition, the method can evaluate the performance of the IMU using the RMS residual and IMU precision estimation methods. The method does not require the calibration turntable to be north-aligned and leveled. The method has gone through many real-case tests, which prove that it saves IMU test time, improves disadvantages of frequent turntable rotations in traditional test inertial devices in aerospace and aviation areas. test efficiency, elongates IMU lifetime and overcomes the calibration methods. The method can be broadly used to

关 键 词：捷联惯测组合 快速标定 自评估 

分 类 号：V448[航空宇航科学与技术—飞行器设计]