| ID | 原文 | 译文 |
| 54767 | 结果表明,新构建模型能够充分利用系统的多个历史时次资料,模拟和预测精度都高于传统优化GM(1,1)幂模型,进一步拓展了灰色模型的应用范围。 | The results show that the new building model can make full use of time when multiple historical data of the system, simulation and prediction accuracy is higher than traditional GM (1, 1) model of power, to further expand the application scope of grey model. |
| 54768 | 最后,以我国高中升学率的数据为例验证了所构建模型的优越性和有效性。 | Finally, China's high school graduation rates data as an example is given to demonstrate the superiority and effectiveness of the proposed model. |
| 54769 | 针对存在未知转动惯量和外部干扰力矩的敏捷航天器快速大角度姿态机动问题,结合非线性反步法和Lyapunovo稳定性分析方法设计控制力矩和转动惯量估计值的非线性鲁棒自适应控制律。 | For external disturbance and unknown rotational inertia moment of agile spacecraft large Angle manetwer question fast, an inverse nonlinear footwork and Lyapunovo design control stability analysis method and moment of inertia estimation of nonlinear robust adaptive control law. |
| 54770 | 在控制力矩控制律中,加入非线性阻尼项对外部干扰力矩进行补偿,证明了系统的全局一致最终有界稳定性。 | In the control torque control law, to join the nonlinear damping term external disturbance torque compensation, proved that the system is globally uniformly ultimate bounded stability. Introducing nonlinear dynamic coefficients increase system dynamic performance, to improve the ability of fast stability after the fast maneuvering gesture. |
| 54771 | 引入非线性动系数增加系统的动态性能,提高了姿态快速机动后的快速稳定能力。在Maltlab/Simulink环境下进行航天器姿态机动控制仿真研究,仿真结果验证了所设计控制器的有效性和可行性。 | Under the environment of Maltlab/Simulink spacecraft attitude maneuver control simulation, simulation results verify the feasibility and effectiveness of the designed controller. |
| 54772 | 针对网络中心化C4ISR系统结构的定量设计与分析问题,以网络中心战结构模型和观察、调整、决策以及行动(observe,orient,decide,act,OODA)过程模型为理论依据,建立了系统结构"五环"概念,采用网络化效能因子(coefficient of networked effectiveness,CNE)衡量系统结构的网络化效能,形成系统结构"五环"效能表征模型,并给出了指导网络中心化C4ISR系统结构设计的若干推论,仿真实验验证了表征模型的有效性。 | For quantitative network centric C4ISR system architecture design and analysis, with structure of network centric warfare model and observation, adjust, decision and action, observe, and received, decide and act, OODA) process model as the theoretical basis, system structure is established "rings" concept, using network efficiency factor (coefficient of networked effectiveness, CNE) measuring system structure of network performance, the formation of "rings" performance characterization system structure model, and gives the guidance of network centric corollaries of C4ISR system structure design, simulation results verify the validity of the model. |
| 54773 | 针对常规直接序列扩频水声通信数据传输速率低及M元扩频水声通信接收机复杂度高的问题,提出了一种正交频分复用(orthogonal frequency division multiplexing,OFDM)技术和循环移位键控(cyclic shift keying,CSK)技术相结合的调制方式,该调制能很大程度地提高系统的带宽使用率。 | In view of the conventional direct sequence spread spectrum underwater acoustic communication data transmission rate is low and high M yuan spread spectrum underwater acoustic communication receiver complexity of problem, put forward a kind of orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) technology and the cyclic shift keying (CSK, cyclic shift keying) modulation technology of combining the way, the modulation can greatly improve the bandwidth utilization of the system. |
| 54774 | 从理论上对该方法在高斯白噪声信道条件下的误码率进行了分析。 | Of this method in white gaussian noise channel theoretically under the condition of bit error rate is analyzed. |
| 54775 | 同时,采用Chu序列作为扩频序列,通过理论推导得出其峰均功率比(peak to average power ratio,PAPR)的上限为3dB。 | At the same time, Chu sequence is used as a spread spectrum sequence, through theoretical derivation their peak power ratio (PAPR) peak to average power thewire, up to 3 db. |
| 54776 | 利用实际湖试测量得到的多径信道模型,与DSSS-OFDM方法进行了误码率性能的分析比较。 | Lake using actual measured the multipath channel model, with the ber performance of DSSS - OFDM method analysis and comparison. |