ID 原文 译文
49046 建立航空发动机性能衰退模型,将健康因子求解问题转化为有边界约束的非线性优化问题。 Aeroengine performance degradation model is established, the health factor to solve the problem into a nonlinear optimization problem with boundary constraints.
49047 利用免疫克隆选择算法解决了测量参数少于目标部件性能参数的优化求解问题,得到表征发动机部件性能的健康因子的变化趋势,实现对现役典型发动机部件性能健康状态的准确评价。 Using immune clonal selection algorithm to solve the measurement parameter is less than the target component performance parameters optimization to solve the problem, get the performance characterization of engine components to change trend of health factors, realize the current typical engine parts performance accurately evaluate health status.
49048 经验证,计算结果与测量数据吻合较好,为制定航空发动机健康监控的性能衰退标准提供理论依据。 Validated, the calculated results are in good agreement with the measurement data, for the development of aeroengine health monitoring standards provide theoretical basis for the performance of the recession.
49049 受时变色散信道及多径效应的影响,短波通信协议的识别存在截获信号质量差、单一特征识别准确率低等问题。 Under the influence of time-varying dispersive channel and multipath effect, identification of short-wave communication protocols exist to intercept the signal quality and low single feature recognition accuracy of problem.
49050 提出了协议特征向量和自熵,设计了一种具有自适应学习能力的协议识别模型和相应的识别算法,最后给出了参数寻优结果以及识别准确率分析。 Proposed protocol characteristic vector and the entropy, we design a protocol identification model with adaptive learning ability and the corresponding recognition algorithm, finally gives the parameter optimization results and the analysis of the identification accuracy.
49051 本文的工作为短波通信协议识别技术的应用提供了重要参考。 The work of this paper for the application of short-wave communication protocol recognition technology provides an important reference.
49052 高频地波超视距雷达能够完成视距外的海洋环境监测以及目标检测与跟踪,但是电离层杂波的存在会使高频地波超视距雷达的目标检测和目标跟踪等性能严重降低,特别是当目标方位与电离层杂波方位一致或相近时,目标检测难度大大增加。 Hf ground wave over-the-horizon radar is able to complete the horizon of the Marine environment monitoring and target detection and tracking, but the existence of the ionospheric clutter makes high frequency ground wave over-the-horizon radar target detection and target tracking performance severely reduced, especially when the target bearing and the ionosphere miscellaneous functions consistent or similar, target detection more difficult.
49053 利用实测数据分析了电离层杂波的相关性,根据电离层杂波的特点,提出了基于空时自适应处理方法抑制电离层杂波,并通过实测数据,验证了方法的有效性。 Analysis of the ionospheric clutter correlation with measured data, according to the characteristics of the ionosphere clutter, is proposed based on the space-time adaptive processing method to suppress ionospheric clutter, and through the measured data, verify the validity of the method.
49054 提出了基于多属性权衡空间探索方法的卫星导航系统安全防护设计方法。 Is proposed based on multiple attribute weighing space exploration method of satellite navigation system safety design method.
49055 该方法由4个步骤组成:第一步,将决策者关注的任务需求和导航系统性能定义为各种属性;第二步,通过分析这些属性,提出各种设计变量,即各种防护手段;第三步,建立系统模型,将防护手段映射到属性和费用;第四步,权衡空间分析,在同一个权衡空间下比较各不相同的防护方案和手段。 The method consists of four steps: first step, the policy-makers focus on the task of demand and navigation system performance is defined as the various properties;The second step, through the analysis of these attributes, the paper puts forward a variety of design variables, namely various protective means;The third step, establishes the system model, map the protection to the property and cost;The fourth step, weigh the space analysis, in the same measure space under the comparison of different protection schemes and means.