ID 原文 译文
49307 针对云层遮挡影响光学卫星成像质量的问题，以新一代敏捷卫星任务规划问题为背景，对云层信息进行建模，提出了一种云层遮挡时间窗口计算方法，通过引入预判和二分法推进计算环节来提高遮挡窗口的求解效率。 For cloud cover problem, affecting the quality of optical satellite imaging to a new generation of agile satellite mission planning problem as the background, the cloud information modeling, this paper proposes a method to calculate the cloud cover time window, through the introduction of anticipation and dichotomy advance calculation link to improve the efficiency of solving the keep out the window.
49308 根据任务约束条件建立了考虑云层信息的敏捷卫星任务规划模型，并利用蚁群算法进行寻优计算。 According to the task constraints is established considering the clouds agile satellite mission planning model of information, and the use of ant colony algorithm for optimization calculation.
49309 具体设计了状态转移规则、任务安排规则和信息素更新规则。 The concrete design of state transition rules, task arrangement and pheromone update rules.
49310 通过10个不同规模的情景案例进行仿真对比分析，仿真结果验证了云层模型和提出的处理方法在敏捷卫星任务规划问题上的有效性。 Through 10 different scale of case simulation comparison analysis, the simulation results verify the processing of cloud model and puts forward the effectiveness of the method on agile satellite mission planning problem.
49311 为了确定非圆信号波达方向(direction-of-arrival，DOA)估计中参数化校正的方差下限，基于阵列误差影响下的随机性非圆信号模型与联合信源时域自相关特性的非圆信号模型，分别推导了DOA参数与阵列误差参数的联合估计克拉美罗界(Cramer-Rao bound，CRB)。 In order to determine the non-circular signal DOA (direction of - concatenated, DOA) variance threshold to estimate the parameterization of correction, based on the array error under the influence of the randomness of the non-circular signal model and joint source autocorrelation characteristics of non-circular signal model of DOA and array error parameters was deduced respectively joint estimation of gram luo world of Latin America (Cramer - Rao bound, the CRB).
49312 通过将推导的非圆性能界与未利用非圆特性的性能界进行对比分析，理论证明了非圆性能界比未利用非圆特性的性能界更低，且两者的差异在低信噪比和大非圆率信号入射的情况下较大。 By putting a non-circular performance bound is derived with unused non-circular characteristic industry, this paper compares and analyzes the performance of theory proved that the non-circular performance bound than unused non-circular characteristic performance bound is lower, and the differences in the rate of low SNR and large non-circular signals under the condition of incident is bigger.
49313 实验结果不仅验证了理论分析的正确性，同时表明信源时域自相关信息有助于进一步提升阵列误差的校正精度。 The experimental results validate the correctness of theoretical analysis, not only at the same time shows that source temporal autocorrelation information helps to further enhance the array error correction precision.
49314 为解决大型相控阵天线维修成本高及维修时机难以确定、维修优化建模难度大、优化模型仿真计算困难等问题，提出一种基于区域量化的天线阵面维修优化模型。 To solve the large phased array antenna high maintenance cost and maintenance time is difficult to determine, difficult maintenance optimization modeling, optimization model for the simulation calculation difficulties and other issues, put forward a kind of antenna array based on regional quantitative surface maintenance optimization model.
49315 通过分析天线单元失效对天线性能的影响，建立了天线阵面的区域量化模型，将天线阵面的维修问题转化成多个子区域的维修优化问题。 By analyzing the effect on the performance of antenna, antenna unit failure to establish the quantitative model of the antenna array area, will be on the surface of the antenna array maintenance problem into multiple child area maintenance optimization problem.
49316 在此基础上，以使用可用度为约束条件、以单位时间维修费用最小为优化目标，建立了阵面分布不均匀的大型相控阵天线视情维修优化模型。 On this basis, to use the availability as constraint conditions, the minimum maintenance cost per unit time as the optimization goal, has established the uneven distribution of front large phased array antenna as optimization model of maintenance.