ID 原文 译文
18965 针对高超声速(HSV)平台雷达系统,该文提出一种基于高超声速平台前斜视多通道合成孔径雷达地面动目标检测(SAR-GMTI)杂波抑制方法。 According to the HyperSonic Vehicle (HSV) borne radar platform system, a multi-channel SAR-GMTI clutter suppression method is presented based on hypersonic platform forward squint mode.
18966 该方法先进行时域距离走动校正和距离压缩,并补偿距离向通道相位误差实现距离向包络对齐; First, range walk correction and range compression are completed in the time domain, and the distance envelope is aligned simultaneously with phase error compensation.
18967 然后再对方位多普勒扩展的信号进行3阶线调频傅里叶变换(CFT)压缩,并补偿方位向通道相位误差实现方位向包络对齐; Then, the Doppler extended signal is compressed by three-orderazimuth Chirp Fourier Transform (CFT), and the azimuth envelope of the echo is aligned with phase errorcompensation simultaneously.
18968 接着在距离时域-方位CFT域利用数字波束形成(DBF)技术对杂波及其模糊分量置零进行空时自适应处理(STAP),从而可以有效抑制静止杂波及其模糊分量并提取出无模糊的运动目标回波信号。 Next, the Digital Beam Forming (DBF) technology is applied to the range time-azimuth CFT domain by nulling the clutter and its ambiguous components to achieve Space-Time AdaptiveProcessing (STAP). The stationary clutter and its ambiguous components can be suppressed effectively and theecho signs of the moving target without blurring can be extracted.
18969 为研究敌我识别(IFF)辐射源信号的细微特征,针对目前在复杂噪声环境中IFF辐射源个体识别研究不足的问题,该文提出一种基于集成固有时间尺度分解的IFF辐射源个体识别算法。 In order to study the subtle feature recognition of Identification Foe or Friend (IFF) radiation source signals, this paper proposes an IFF individual recognition method based on ensemble intrinsic time-scale decomposition to solve the problem of insufficient research on individual identification of IFF radiation source in complex noise environment.
18970 该算法应用集成固有时间尺度分解(EITD)将采样信号自适应划分为若干有实际意义的信号分量并求取IFF辐射源信号在时频域的能量分布图。 In this algorithm, the Ensemble Intrinsic Time-scale Decomposition (EITD) is applied to dividing the sampled signals into several practical signal components and obtaining the energy distribution diagram of the IFF radiation source signals in time-frequency domain.
18971 通过对时频能量谱的纹理分析,以图像的纹理特征表征辐射源信号的无意调制特征,送入支持向量机(SVM)中进行分类识别。 Through the texture analysisof time-frequency energy spectrum, the unintentional modulation feature of the radiation source signals isrepresented by the texture features of the image, which are sent to the Support Vector Machine (SVM) forclassification and recognition.
18972 实验表明,所提算法相较于基于希尔伯特-黄变换(HHT)、基于固有时间尺度分解(ITD)的辐射源个体识别方法在识别准确度上有较大提升。 Experiments show that the proposed method is more accurate than the Hilbert-Huang Transform (HHT) and Inherent Time scale Decomposition (ITD) based method.
18973 针对相控阵雷达时间资源分配问题,该文提出一种基于价值优化的任务调度算法。 A task scheduling algorithm based on value optimization is proposed for phased array radar.
18974 首先建立任务调度属性参数,对跟踪任务队列进行可行性分析和筛选操作,确定跟踪任务调度属性。 Firstly,the schedulability of tracking tasks is obtained through feasibility analysis and selecting operation on the taskqueue, using the proposed schedulability parameters.