中文摘要：

由于采样电路延迟、陀螺频率特性等原因,使得惯性测量组件中三轴陀螺输出呈现不同步的现象。文中从姿态解算方程出发,分析推导了当载体两个轴向存在不同输入相角的正弦晃动时,时间不同步误差对姿态解算影响大小,指出当输入相角分别为正交和同相时,影响达到最小和最大。分析了0~100 Hz振动环境下,陀螺时间不同步误差的影响特性,并对惯性测量组件的设计环节提出了相应改进意见。

英文摘要：

Because of time-delay of sampling circuit and frequency response of gyros,output of three gyros in inertial measurement unit is asynchronous. On the basis of attitude computation equations,the effect of gyros＇ asynchronization on attitude calculation was analyzed and deduced firstly when phase angles of sine swaying along the vehicle＇s two axes were different. It is indicated that when phase angles are orthotropic and same,the effect reaches minimum and maximum respectively. The impact characteristics of gyros＇ asynchronous behavior was analyzed under vibration environment through 0 ~ 100 Hz,and the paper offers some proposals related to the design of inertial measurement unit.