ID 原文 译文
17235 不同于传统时域或频域的杂波抑制方法，该方法根据气象和杂波在距离-多普勒(RD)域内的特征不同进行前者的保留和后者的抑制。 Unlike the traditionaltime- or frequency-domain clutter suppression methods, this method retains the weather echoes and mitigatesclutter according to their differences in the Range Doppler (RD) domain.
17236 首先利用频谱极化特征构造SPP，结合形态学方法，在RD域内生成一个2元掩模。 Firstly, the SPPs are defined byexploiting the polarimetric features in the RD domain. With the help of the morphological method, the binarymasks are generated.
17237 基于面向对象的思想，将2元掩模标记为气象对象掩模和杂波对象掩模。 Then, with the object-oriented idea, the binary masks are labeled as weather-object masksor clutter-object ones.
17238 然后引入谱宽作为额外的参数，筛选出所有气象对象掩模，将其进行叠加可以获取完整的气象信息，最终生成SPP杂波滤波器。 The spectral width is introduced as an additional parameter to select weather-objectmasks, all of which are added up to form the clutter suppression filter and hence the complete weatherinformation can be remained.
17239 实测X波段和C波段气象雷达数据验证了所提方法的有效性。 The X- and C-band polarized weather radar data are used to demonstrate theeffectiveness of the proposed method.
17240 与移动双重谱线性退极化比(MDsLDR)滤波器和基于时域的门限因子杂波抑制方法相比，SPP滤波器在保留弱气象信息方面效果更好。 As compared with Moving Double spectral Linear DepolarizationRatio(MDsLDR) filter and the time-domain clutter suppression method using threshold factor, the proposedSPP clutter suppression filter is more effective in retaining relatively weak weather information.
17241 此外，该方法计算复杂度低，可以实时应用于同时发射同时接收(STSR)和交替发射同时接收(ATSR)双极化气象雷达。 Moreover, theSPP filter has low computational complexity and can be applied to real time for dual-polarization weatherradars working in either Simultaneous Transmission and Simultaneous Reception (STSR) mode or AlternateTransmission and Simultaneous Reception(ATSR) mode.
17242 常规宽带能量检测在多目标、强干扰环境下输出信噪比(SNR)降低，检测性能大幅度下降。 The output Signal-to-Noise Ratio(SNR) of conventional broadband energy detection is reduced in multi-target and strong interference environment, and the detection performance is great reduced.
17243 针对此问题，该文提出一种将子阵导向最小方差(STMV)宽带空域自适应波束形成与频域Eckart滤波结合的空-频联合最优滤波宽带检测方法。 In order to solve the problem, a broadband detection method based on space-frequency joint optimal filtering which combines subarray STeered Minimum Variance(STMV) broadband adaptive beam forming with Eckart filtering is proposed.
17244 该方法首先通过子阵导向最小方差波束形成进行空间自适应处理，利用自适应波束形成的干扰抑制能力在空域实现最优滤波； Firstly, the spatial adaptive processing is carried out by subarray STMV beamforming, and theoptimal filtering is realized in spatial domain by using the interference suppression ability of adaptivebeamforming.