ID 原文 译文
8494 与其他方法相比,所提方法大大减少了校正阵列的复杂度。 Compared with other methods, the proposed approach greatly reduces the correction of the complexity of the array.
8495 仿真结果表明了该算法的有效性。 The simulation results show the effectiveness of the algorithm.
8496 针对临近空间高超声速飞行器非匹配不确定性姿态控制问题,提出一种新型匹配化滑模姿态控制系统设计方法。 In view of the near space hypersonic aircraft mismatched uncertainty attitude control problem, put forward a new kind of matching design method of sliding mode attitude control system.
8497 首先将含有非匹配不确定性的模型进行匹配化变换,得到匹配的不确定性模型。 Will first with mismatched uncertainty model matching transform, uncertainty of matched model.
8498 采用扩张干扰观测器估计不确定项,用来补偿系统输出量的微分。 Using extended disturbance observer to estimate uncertainties, to compensate the system output differential.
8499 其次,基于干扰观测器及频域滤波器设计了一种渐近收敛的复合微分器,用来获取系统输出的一阶导数。 Secondly, based on disturbance observer and frequency domain filter designed a asymptotic convergence of compound differentiator, used to obtain the system output of the first derivative.
8500 在此基础上,采用变结构控制方法,提出了一种匹配化滑模姿态控制方法。 On this basis, using the method of variable structure control, this paper proposes a matching sliding mode attitude control method.
8501 最后,通过数字仿真验证了该方法的有效性,并与反步法进行了对比,对比结果表明本文的方法具有更好的快速性及鲁棒性。 Finally, the effectiveness of the proposed method is verified by digital simulation, and compared with the footwork, comparison results show that the method has better speediness and robustness.
8502 多普勒频移对现代扩频通信系统性能有着重要影响,设计跳频序列时需考虑具有时延和多普勒频移情形下序列的相关性。 Doppler frequency shift has an important influence on modern spread spectrum communication system performance, the design of frequency hopping sequences should be considered with time delay and doppler frequency shift in case the correlation of sequence.
8503 研究了跳频序列集时频最大周期汉明相关值的理论界,计算了Cai跳频序列集的时频二维周期汉明相关值,用该理论界检验了这类跳频序列集的二维周期汉明相关值,并进一步得到了部分达到最优的跳频序列; Frequency hopping sequence set is studied in the time-frequency hamming correlation value of the theoretical maximum cycle, when calculating the Cai frequency hopping sequence set frequency two-dimensional periodic hamming correlation value, using the theory test for this kind of frequency hopping sequence set of two-dimensional periodic hamming correlation value, and further get the part to achieve the optimal frequency hopping sequence;