ID 原文 译文
38796 此外,进一步研究发射方向图响应和多维模糊函数,并结合仿真实验分析时移误差对空间探测范围,距离、角度维分辨率和副瓣电平等特性的影响。 Launch in addition, further research direction figure response and multidimensional fuzzy function, and combined with the simulation analysis of shift error detection range, to the space distance, sidelobe electricity equal Angle resolution and characteristics.
38797 Chinese Abstract English Abstract
38798 针对复杂战场电磁环境下，基于全脉冲参数的传统分选算法准确率下降这一问题，本文提出一种提取信号高次频谱对称Holder系数作为脉内特征参数的信号分选方法。 Aiming at the problem that the accuracy rate of the traditional sorting algorithms based on full pulse parameters is reduced in the complex electromagnetic environment of battlefields, this paper proposes a signal sorting method, which extracts the symmetrical Holder coefficients of the higher-order spectrums of the signals as the in-pulse feature parameters.
38799 该方法首先利用对称Holder系数法提取信号高次频谱的脉内特征，而后将提取到的脉内特征参数与稳定的脉间参数组成新的特征向量，最后使用K-means算法对信号进行分选。 This method first uses the symmetric Holder coefficient method to extract the intra-pulse features of the higher-order spectrums of the signals, and then combines the extracted intra-pulse feature parameters and the stable inter-pulse parameters into a new feature vector, and finally uses the K-means algorithm to sort the signals.
38800 作为一种脉内特征，信号的高次频谱对称Holder系数相比于一次频谱相像系数具有更大的寻优空间。 As an intra-pulse feature, the symmetric Holder coefficients of high-order spectrum have a larger space for optimization than the resemblance coefficients of 1 st-order spectrum.
38801 将该特征加入信号特征向量可使新的特征向量具有更强的可分性。 Adding this feature to the signal feature vector can make the new feature vector more separable.
38802 对四种雷达信号的仿真实验结果表明，在特征向量中加入该特征，能够有效提高信号分选的正确率。 The simulation experiment results of four kinds of radar signals show that adding this feature to the feature vector can effectively improve the accuracy of signal sorting.
38803 在无线通信系统的实际传输中，当窃听用户距离合法接受者足够近，或者位于合法接收机信号的无线电波路径上时，就会出现主信道与窃听信道相关的场景。 In the actual transmission of the wireless communication system, main channel will be correlated with eavesdropping channel when the eavesdropping user is close enough to the legal receiver or is located on the radio wave path of the received signal.
38804 为此我们考虑一个多输入单输出，并且存在一个单天线被动窃听者的无线通信系统，研究了当基站采用最大比发射技术发送信号时，相关对系统性能的影响。 To this end, we consider a wireless communication system with a multiple-input, a single-output and a single antenna passive eavesdropper. We studied the impact of correlation on system performance when the base station uses maximum ratio technology to transmit signals.
38805 推导了安全中断概率与平均安全容量的闭合表达式。 The closed expressions of secrecy outage probability and average secrecy capacity are derived.