ID | 原文 | 译文 |
54937 | 火箭前期飞行通过程序指令控制基准弹道,以满足期望的高度与当地弹道倾角约束为目的将弹道优化转参数优化问题处理,减少了约束条件;后期飞行通过姿态交变机动的闭路能量管理制导方法,耗散多余能量控制飞行速度,达到了满足终端速度、高度、倾角等多约束条件的火箭不同高度入轨。 | Program instruction control benchmark through the early stage of the rocket flight trajectory, in order to meet the high expectations with the local elevation Angle constraint for the purpose of transfer trajectory optimization processing parameter optimization problem, reduces the constraint condition;Late flight through attitude alternating motor closed-loop energy management guidance method, control the speed, the dissipation of excess energy to meet the terminal velocity, height and Angle constraint conditions such as different altitude orbit rocket. |
54938 | 仿真结果表明,该能量管理制导方法有效可行且在不同轨道运载任务中具有较好的适用性。 | The simulation results show that the energy management guidance method is effective and feasible and has good applicability in different rail transport task. |
54939 | 针对BBV等传统加权网络模型生成的网络聚类系数较小、簇度幂律特征偏弱等不足,提出了一个变聚类系数加权网络模型,其中新节点的加入根据节点强度和初始吸引度共同驱动的优先连接机制或三角连接机制与网络中的旧节点建立连接。 | For traditional like BBV weighted network model generated by the network clustering coefficient is smaller, weaker power-law characteristics such as insufficient cluster degree, put forward the network model, a variable weighted clustering coefficient of the addition of new nodes based on node strength and initial attraction degree preferential attachment mechanism of common drive or triangle connection mechanism and the old node in the network connection is established. |
54940 | 仿真表明,当初始吸引度和三角连接概率取不同值时,生成网络的度、强度和边权都服从幂律分布,并且聚类系数可调,特别是随着三角连接概率的变大,簇度之间的幂律特征更加明显。 | Simulation shows that when the initial attraction and take different values, triangle connection probability generating network degree, strength and edge weight follows power-law distribution, clustering coefficient and adjustable, especially as the triangle connection probability, cluster degree between the characteristics of power law is more obvious. |
54941 | 最后构建了基于加权网络的级联故障模型,分析了权重因素、聚类系数等对网络级联抗毁性的影响。 | Finally built a cascading failure model based on the weighted network, analyzes the weighting factors, clustering coefficient and so on the influence of network cascade anti-destroying ability. |
54942 | 对导弹俯仰通道过载控制系统进行线性二次型最优控制设计,利用输出反馈和状态重构推导出广义的导弹三回路结构从而引申出改进的分数阶控制结构,据此研究了不同的分数阶控制策略对系统响应的影响。 | The pitch channel of missile overload control system for linear quadratic optimal control is designed, using output feedback and state is deduced general missile three loop structure so as to lead to improved fractional order control structure, on the basis of different fractional order control strategy is studied the impact on the system response. |
54943 | 为便于参数选择,通过粒子群(particle swarm optimization,PSO)算法整定分数阶控制器参数,同时提出一种综合频域和时域指标的适应值函数来加快算法收敛速度。 | For convenience of parameter choice, through particle swarm (particle swarm optimization, PSO) algorithm is setting fractional order controller parameters, and puts forward a comprehensive index of frequency domain and time domain adaptive value function to speed up the algorithm convergence speed. |
54944 | 仿真结果表明优化结构的分数阶控制器具有良好的效果。 | Simulation results show that the optimization of the structure of the fractional order controller has a good effect. |
54945 | 二维近程微波全息成像技术已被考虑应用于人体安检、医疗成像、隐匿武器检测等,该技术采集前、后向散射数据,入射场完全由测量或模拟直接获得,成像质量和分辨率相比近程毫米波全息成像技术有一定提高。 | Two-dimensional short-range microwave holographic imaging technology has been applied to human security, medical imaging, concealed weapons testing, etc. , before and after the technology acquisition to the scattering data in field completely obtained by measurement or simulation directly, imaging quality and resolution than short-range millimeter-wave holographic imaging technology have improved. |
54946 | 但该技术现阶段还没有成像系统,仍处于起步阶段。 | But haven't imaging system at present stage, the technology is still in its infancy. |