横滚 meaning in English
barrel roll
dutch roll
rolling
Examples
- Motion errors are given first , and then theoretical analysis , simulation result show affections caused by 3 kinds of typical motion errors both on the doppler and the image . last the phase error criterions are given . 4
4 .研究了机载双站sar中偏航、俯仰和横滚三种姿态误差对回波多普勒频率和雷达成像的影响,并分析研究了天线指向误差对回波幅度的影响,最后通过仿真实验证明了研究的正确性。 - After analyzing compensation conditions for 3 - axis stabilization to overcome disturbance from ship surge , sway and yaw , two control strategies - feed - forward compensation and closed - loop feedback compensation - are given . these two strategies are applied to antenna stabilized tracking system with good performance . intelligent pid is used in closed - loop feedback compensation to get high tracking precision and rapid response
重点分析了天线稳定控制系统的三轴补偿条件，提出了稳定系统抑止载体扰动的控制策略：对于横滚和俯仰系统采用前馈补偿的控制策略；对于方位系统，在以步进电机为驱动元件的特定条件下，研究了变控制周期的闭环反馈策略，同时成功将智能pid算法应用于实际系统，提高了系统的跟踪精度和响应快速性。 - Frequency sweep flight technique is used to collect the flight data of a model helicopter near its hover and low speed working condition , window frequency spectrum is combined to obtain the frequency response of both lateral and longitudinal channels , then weighted fitting method is utilized to obtain the transfer functions of the two channel
摘要利用扫频试飞技术获取了某无人直升机在悬停工作点附近的舵机输入和直升机动态输出数据，利用组合窗频谱分析的方法获取了直升机横滚通道与俯仰通道动态的频率响应特性，利用加权拟合的方法获取了各自的传递函数。