ID | 原文 | 译文 |
6614 | 算法首先以SAR图像目标边缘的ROEWA算子的负指数函数为边缘指示函数,对区域可伸缩能量项和弧长项进行加权,消除了原模型中梯度算子对于乘性相干斑满布的SAR图像边缘检测失效的弊端,还防止了目标弱边界的泄漏,避免了边界缺失; | Algorithm firstly on the edge of the target in SAR image edge ROEWA operator with negative exponential function of the indicator function, and arc strength of regional scalable energy weighted, eliminates the gradient operator in the original model for multiplicative coherent spot with the drawbacks of the failure of SAR image edge detection, also prevents the target weak boundary leakage, to avoid the lack of boundaries; |
6615 | 其次在零水平集演化的偏微分方程中加入权系数可变的面积项,提升了算法在目标边缘处的自适应捕获能力,同时也提高了算法对目标多层轮廓的检测能力,并且最大化地保留了目标的外轮廓; | Second in the zero level set evolution of partial differential equation with variable weights area of study, improve the adaptive algorithm in the target edge capture ability, but also improves the algorithm of target layers of contour detection ability, and maximize the keep the outer contour of the target; |
6616 | 面积项的可变权系数可根据目标的ROEWA算子的模值来自动调整大小,很好地保持了目标的边缘细节。 | Area of variable weights according to the target's modulus of ROEWA operator to automatically adjust the size, well keep the edge details of the target. |
6617 | 改进算法不受初始轮廓的影响,对相干斑噪声不敏感,且实验证明算法的计算复杂度仅与图像的尺寸有关。 | Improved algorithm is not affected by the initial contour of coherent spot is insensitive to noise, and the experimental results show the algorithm computational complexity is only related to the size of the image. |
6618 | 通过对合成与真实的SAR图像数据进行实验,验证了所提方法的直观性和有效性。 | Based on synthetic and real SAR image data of the experiment, intuitive and effectiveness of the proposed method was verified. |
6619 | 针对以往研究利用指数分布等典型分布导致系统可靠性建模约束条件过于严格的问题,以包含n个单元的温储备可修系统为研究对象,考虑系统具有单一维修台,采用可近似拟合任意分布的Phase-type(PH)分布构建了一种描述能力更强的系统可靠性模型。 | According to previous research using the index distribution of typical distribution system reliability modeling constraints is too strict, to contain n unit temperature reserve repairable system as the research object, considering the system has a single repair units, the can approximate fitting arbitrary distribution of Phase - type (PH) build the a stronger ability to describe the distribution of system reliability model. |
6620 | 假设工作单元、备用单元寿命和维修时间分别服从不同的PH分布,得出了系统稳态可用度、系统平均连续工作时间、维修台故障单元到达率等一系列可靠性参数的解析表达式。 | Assuming that the unit of work, the spare life of the unit and maintenance time obey different PH distribution, it is concluded that the system steady-state availability and average continuous working time, arrival rate and a series of maintenance machine fault units the analytical expressions of reliability parameters. |
6621 | 最后,通过算例分析验证了该方法的正确性和适用性。 | Finally, an example analysis proves the correctness and applicability of the method. |
6622 | 多机种战时的出动架次系统是一个复杂的离散事件系统,适合运用Petri网理论对其进行建模。 | Heterogenous wartime sortie system is a complex discrete event system, suitable for using Petri net theory of modeling. |
6623 | 本文运用Petri网理论构建多机种战时的出动架次模型,应用着色Petri网(coloured Petri nets,CPN)Tools软件仿真模拟基层级的维修保障过程,重点分析通用性维修保障设备的配置对多机种同场次出动架次率的影响,并以多机种的出动架次率为优化目标,获得通用性保障设备的最优配备比(保障设备数:飞机数),最后对影响多机种出动架次的因素进行敏感性分析。 | Petri net theory, this paper construct a heterogenous wartime sortie model, application of colored Petri net (coloured Petri nets, CPN) simulation Tools software maintenance support process of grass-roots level, mainly analyzes the configuration of general maintenance support equipment for heterogenous sortie rate with the game, and heterogenous sortie rate as the optimization goal, obtain optimal equipped with protection devices than commonality (support equipment count: the number of aircraft), finally, the effect factors of heterogenous sortie for sensitivity analysis. |