ID 原文 译文
48756 文中证明构造的序列集的零相关区扩展倍数不小于序列长度扩展倍数,且利用最佳零相关区序列集时可以获得最佳或渐近最佳的零相关区序列集。 In this paper, we prove that tectonic sequence set extension ratio is not less than zero correlation zone sequence length extension ratio, and the best sequence set zero correlation zone can be used to get the best or asymptotic optimal set of zero correlation zone sequence.
48757 该方法降低了对正交矩阵以及零相关区序列集的要求,使生成的序列集具有灵活的维度和长度。 This method reduces the set of orthogonal matrix and zero correlation zone sequence requirements, make the generated sequence set with flexible dimension and length.
48758 最后,数值仿真证明了该方法的有效性。 Finally, the numerical simulation proves the effectiveness of the method.
48759 为了估计脉冲的到达时间和脉冲宽度,将图像处理领域的边缘检测思想应用于电子对抗中的脉冲信号检测问题,提出了一种基于盒差分(difference of boxes,DOB)滤波器的脉冲边沿检测算法。 In order to estimate the arrival time of pulse and pulse width, the ideas of edge detection in the field of image processing is applied to the pulse signal detection problem of electronic countermeasures, this paper proposes a difference (difference of boxes, DOB) based on the box filter pulse edge detection algorithm.
48760 推导并给出了算法的基本流程,仿真分析了不同滤波器阶数和不同信噪比条件下的脉冲检测结果。 Derivation and give the basic process of the algorithm and simulation analysis for different filter order number and different SNR of pulse test results.
48761 仿真结果表明,该算法的检测性能优于能量检测算法,但检测采用的DOB滤波器大小不能大于脉内信号的采样点数。 The simulation results show that the detection performance of the proposed algorithm is superior to the energy detection algorithm, but detection using pulse signal in DOB filter size is not greater than the sampling points.
48762 由于共形天线载体曲率不同,阵列中每个阵元的方向图的指向各不相同,这导致了阵列中各个阵元极化特性(polarization diversity,PD)的差异。 Because conformal antenna carrier curvature is different, each array element in the array in the direction of the figure of the point to each are not identical, this led to the polarization characteristics of each array element array (polarization'm, PD) difference.
48763 因此,共形阵列天线的数学模型中考虑了不同阵元的极化特性。 As a result, the mathematical model of the conformal array antenna in considering the characteristics of different polarization.
48764 共形阵列实现波达方向(direction of arrival,DOA)估计的过程中,主要难点在于信源方位参数与极化状态的去耦合。 Conformal array to realize DOA (direction of concatenated, DOA) estimate of the process, main difficulties is the source azimuth parameters and the polarization state of the coupling.
48765 本文利用圆柱的单曲率特性,通过合理摆放子阵中的天线阵元,结合传播算子方法(propagator method,PM)和子阵分割技术,提出了一种适合于柱面共形阵列的DOA估计方法。 This paper, by using of single curvature of the cylindrical feature, by reasonable put submatrix of antenna array yuan, propagator method (propagator method, PM) and the submatrix segmentation technology, put forward a kind of suitable for cylindrical conformal array DOA estimation method.