ID 原文 译文
19005 所提算法将遥测数据中的系统、载荷、指标以及时间等多维因素作为统一的整体进行张量建模,以完整、准确地表达数据的高维特征; The proposed algorithm makes accurate predictions by modeling the telemetry data as a Tensor to integrally utilize its high-dimensional feature;
19006 其次,通过张量分解计算数据模型的成分特征,通过成分特征可对张量模型进行准确重构,并在重构过程中对缺失数据进行准确预测;最后,提出一种高效的优化算法实现相关的张量计算,并对算法中最优参数设置进行严格的理论推导。 Computing the component matrixes via Tensor Factorization to reconstruct the Tensor which gives the predictions of the missing data; An efficient optimization algorithm is proposed to implement the related tensor calculations, for which the optimal parameter settings are strictly theoretically deduced.
19007 实验结果表明,所提算法的预测准确度优于当前大部分预测算法。 Experiments show that the proposed algorithm has better prediction accuracy than the most existing algorithms.
19008 针对雷达采取间歇辐射的射频隐身管控措施,以双站测向交叉定位为例,该文研究了辐射时间比与定位性能的影响关系。 For the radio frequency stealth control measure of radar intermittent radiation, the relationship between radiation time ratio and positioning performance is studied which takes cross location with two stations as an example.
19009 首先分析了雷达间歇辐射的管控方法,然后在载机做匀速直线运动的假设下,采用克拉美罗下界(CRLB)方法,建立了辐射时间比对定位精度的影响模型。 Firstly, the control method of radar intermittent radiation is analyzed. Then, under theassumption of uniform linear motion of the carrier aircraft, the influence model of radiation time ratio onpositioning accuracy is established by using the Cramer-Rao Lower Bound (CRLB).
19010 最后给出了模型的求解步骤并进行了仿真验证。 Finally, the solution stepsof the model are given and verified by simulation.
19011 仿真结果表明,不同辐射时间比对定位性能的影响不同,在初始距离为100 km,辐射时间比小于0.5时,定位收敛时间超过10 s,可以有效降低测向交叉定位的性能。 The simulation results show that different radiation timeratios have different effects on the location performance. When the initial distance is 100 km and the radiationtime ratio is less than 0.5, the location convergence time exceeds 10 s, which can effectively reduce the performance of cross location with two stations.
19012 双星TDOA/FDOA联合定位通过时差曲面和频差曲面进行定位,定位的精度受时差/频差测量精度的影响。 Dual satellite TDOA/FDOA localization is achieved by the TDOA hyperboloid and FDOAhyperboloid. The accuracy of localization is affected by TDOA/FDOA accuracy.
19013 针对精确测量时差/频差的需求,该文提出一种基于短合成孔径的双星干涉测量时差/频差的方法,利用一定长度的合成孔径提高测量精度。 In order to measure accurately theTDOA/FDOA, a method of TDOA/FDOA measurement based on short synthetic aperture is presented. This method improves the measurement accuracy by using a certain length of synthetic aperture.
19014 对于窄带信号,该方法有估计单星多普勒频率的能力,通过两颗卫星单独估计的结果得到频差; For narrow band signals, the method has the ability to estimate a single satellite Doppler frequency, and the frequency difference can be obtained from the results estimated by the two satellites.