降低动力调谐陀螺输出噪声的方法

Method used in the suppression of DTG output noise

视轴Lineofsight(LOS)抖动量的大小直接影响到陀螺稳定平台的性能 ,引起该抖动的主要原因之一是系统中动力调谐陀螺Dynamicallytunedgyro(DTG)的输出噪声。通过对动力调谐陀螺输出噪声的分析 ,选用Kalman滤波方法来降低陀螺的输出噪声。仿真实验表明 ,所采用的方法可降低噪声 4 .7dB 。

The jitter in line-of-sight (LOS) can result in the degraded performance of a gyro stabilized platform directly.And one of the main reasons leading to the jitter is the output noise from the dynamically tuned gyro (DTG). Analyzing the characteristics of DTG output noise, it is available for us to suppress the DTG output noise by applying Kalman filtering algorithm. The simulation results have shown that the output noise is suppressed by 4.7dB with Kalman filtering effectively