ID 原文 译文
48896 水声通信实验结果表明在通信距离1.8km、2kHz有效带宽内,新方法在第2次迭代后即可实现2kb/s的无误码传输,可以有效提高系统可靠性和传输速率。 Underwater acoustic communication experimental results show that the communication distance of 1.8 km, 2 KHZ bandwidth effectively, a new method after the second iteration 2 KB/s error free transmission can be realized, can effectively improve the system reliability and transmission rate.
48897 在观测编队目标时波束内容易出现多个目标,可能引起距离像邻近甚至混叠,难以判断距离像簇与目标之间的对应关系,导致无法准确提取单个目标的距离像信息。 When the observation groups within the beam prone to multiple targets, like nearby aliasing, even may cause distance is difficult to judge distances as the corresponding relationship between cluster and target, result in unable to accurately extract a single target distance as information.
48898 基于距离像目标识别的需求,在海面编队结构信息的约束下,分析了波束内多目标出现概率,定义了多目标距离像之间的4种关系。 As the demand of target recognition based on distance, on the surface of the wing structure information, under the constraint of beam is analyzed in multi-objective occurrence probability, defines the multi-objective like the four kinds of relationship between the distance.
48899 利用目标的距离和方位角信息进行二维聚类来判断距离像簇与多目标之间的对应关系,从而实现波束内多个舰船目标的距离像提取。 Using two-dimensional target distance and azimuth information clustering to judge distances like clusters and the corresponding relationship between multi-objective, so as to realize the distance of beam in multiple ship target as extraction.
48900 仿真实验表明该算法能够在不同信噪比和带宽条件下很好地区分编队内不同目标的距离像,为下一步基于距离像信息的目标识别和稳定跟踪提供了重要条件。 Simulation results show that the algorithm can under different signal-to-noise ratio and bandwidth well distinguish formation in different target distance, for the next step for target recognition based on distance as information and stable tracking provides important conditions.
48901 针对国内外研究热点和难点——装备可靠性、维修性、保障性(reliability,maintainability and sup-portability,RMS)一体化设计,提出其中的瓶颈是RMS之间的强耦合机制及其设计知识流动控制问题。 In view of the domestic and foreign research hot spot and the difficulty, equipment reliability, maintainability, and supportability (reliability, maintainability and sup - portability, RMS) integration design, put forward the bottleneck is a strong coupling between the RMS mechanism and design knowledge flow control problem.
48902 为此,分析、论证并提出了一种装备RMS一体化设计的创新研究方案:首先采用具有严格数学基础的图论方法———分层加权有向图进行RMS建模,以系统、科学、客观地刻画RMS强耦合关系;引入图书情报、管理工程中的知识流理论以实现RMS耦合设计知识的流动控制;采用模糊粗糙集理论以解决RMS不确定知识问题。 Therefore, analysis, demonstration, and proposes a kind of equipment integrated design of RMS innovation research plan: first with graph theory method on the basis of the strict mathematical --, hierarchical weighted directed graph was used to model the RMS, with system, scientific and objectively describe the RMS strong coupling relationship;Introducing the theory of book intelligence, management of knowledge flow in order to realize the coupling of RMS design knowledge flow control;Fuzzy rough set theory in order to solve the problem of the RMS uncertain knowledge.
48903 可为装备RMS一体化设计理论的发展提供一种创新的、可行的参考思路。 Can be equipped with the RMS of the development of the theory of integrated design provides an innovative idea and feasible reference.
48904 在对定期维护条件下的产品进行可靠性分析时,由于现有性能退化处理方法没有考虑维修行为对产品性能信息的影响,导致处理结果无法准确反映工程需要。 Under the condition of regular maintenance in analysis, the reliability of the product because of the existing treatment method does not consider maintenance performance degradation behavior influence on product performance information, lead to can not accurately reflect the project need processing results.
48905 考虑维护对该类产品退化量的影响,利用复合Pois-son过程对其退化过程进行了建模,并给出了模型参数的矩估计方法,进而给出了一种与定期维护条件下的产品退化过程更加相符的可靠性评估方法。 Considering the influence of the maintenance of the degradation product quantity, using composite Pois son - process of its degradation process modeling, and gives the method of moment estimation model parameters, and then presents a and regular maintenance under the condition of product reliability evaluation method of degradation process more consistent.