frequency-amplitude characteristic meaning in Chinese

幅频特性

Frequency - amplitude characteristic
幅频特性
The rigid and flexible trusses were simulated respectively . the dependences of the attitude angle degree and angle velocity of the spacecraft on the rigid and flexible situation in the deployment process and drive velocities loaded on the joints were derived . the frequency - amplitude characteristic curves were gained from the attitude angle velocity curves of the deployment of the flexible truss and locked flexible truss after deployment through the fast fourier transition ( fft ) method
文中给出了展开前后的动力学固有特性;对展开过程中分别为刚性桁架和柔性桁架两种情况进行了仿真计算,对比了两种情况的桁架展开过程中卫星姿态角及姿态角速度的变化;比较了柔性桁架不同展开速度对卫星姿态角及姿态角速度的影响;分析了柔性桁架展开过程对卫星非展开方向的姿态角度及角速度的影响及原因;对柔性桁架展开过程中及展开锁定后的卫星姿态角速度的变化曲线进行快速傅立叶变换,得到柔性桁架展开过程即展开锁定后卫星姿态角速度的频幅特性曲线。