ID 原文 译文
24095 导弹在末制导阶段因惯导误差导致弹体实际位置和惯导指示位置存在较大偏差，影响导引头对目标的准确定位，无法满足精确打击的应用需求。 There is a large deviation between the actual position of the missile and inertial guidance position in the final guidance stage due to the inertial navigation error, which influences seeker's accuration on positioning to the target, so it can not meet the application needs of precision strike.
24096 由于弹载合成孔径雷达在导弹俯冲下降段特殊的成像几何构型，目标点对应斜视角所在的平面与成像平面异面，因而传统的基于多普勒测角的定位方法已不再适用。 Due to the special imaging geometry of the missile borne Synthetic Aperture Radar (SAR) in the descending section, the squint angle plane of the target point is different from the imaging plane, so the traditional positioning method based on Doppler angle measurement is no longer applicable.
24097 该文利用图像匹配获取的高精度地面点相对位置信息和雷达到各目标点的高精度斜距信息，通过构建欧拉四面体几何模型，以场景数字高程作为先验信息筛选参考点，解算出以目标点为原点构建的北天东坐标系下的弹体实际位置，从而为弹体修偏提供准确信息。 This paper uses image matching to obtain high precision ground point relative position information and the high precision slant range information between radar and target point. By constructing a Euler tetrahedral geometry model, using the scene digital elevation as a priori information to screen the reference point, the actual position of the missile in the established North-sky-East coordinate system with an origin of the target point is calculated. Then it can provide accurate information for the missile maintenance.
24098 仿真实验验证了该定位方法能很好地满足导弹末制导阶段的目标定位需求。 Simulation results show that this method can meet the requirements of target positioning on missile terminal guidance stage well.
24099 论文提出基于平行嵌套阵互协方差的 2 维(Two Dimensional, 2D)波达角(Direction Of Arrival, DOA)联合估计算法。 A Cross Covariance Matrix (CCM) based Two Dimensional (2D) Direction Of Arrival (DOA) estimation algorithm for parallel nested array is proposed.
24100 算法基于两个互相平行的嵌套阵的互协方差生成较长虚拟阵列，同时将 2 维 DOA 估计问题降维为 1 维 DOA 估计问题。 A long virtual array can be achieved based on the CCM between the two parallel nested arrays, and 2D DOA estimation can be transformed to a 1D DOA estimation problem.
24101 在构造协方差矩阵时，利用方向矩阵范德蒙特性增加虚拟快拍数，保证了孔径的最小损失。 Thereafter, virtual snapshots are increased by exploiting the Vandermonde structure of direction matrix, and the aperture loss is minimized when constructing covariance matrix from the virtual array.
24102 最后算法基于酉旋转不变技术(Estimation of Signal Parameters via Rotational Invariance Technique, ESPRIT)和总体最小二乘(Total Least Squares, TLS)方法进一步降低噪声影响，并获得了自动配对的 2 维 DOA 估计。 Finally, the proposed algorithm employs unitary Estimation of Signal Parameters via Rotational Invariance Technique (ESPRIT) and Total Least Squares (TLS) to reduce further the influence of noise and achieve automatically paired 2D DOA estimation.
24103 相比传统平行阵下的 DOA 估计算法，该算法拥有更好的 DOA 估计性能，能辨识更多的空间信源，对空间色噪声有更强的鲁棒性。 Compared to DOA estimation algorithms using conventional parallel array, the proposed algorithm can achieve better DOA estimation performance, identify more signals and is more robust to spatial color noise.
24104 仿真结果验证了算法的有效性。 The simulation results verify the effectiveness of the proposed algorithm.