ID 原文 译文
53677 然后，从全局字典中找到与杂波点匹配度较高的原子为中心，构建局部 STAP 字 典， Secondly, the atoms with high matching degree with clutter points were found from the global dictionary as the center, and the local dictionary was constructed.
53678 并利用贝叶斯后验概率最大思想进行局部搜索，找到与杂波点匹配度最高的网格点。 In addition, the local search was carried out by considering the posterior Bayesian, and the clutter point with highest matching degree was founded.
53679 最后，得到了经过修正后的 STAP 字典和最优 STAP 滤波权，优化了离网情况下 STAP 算法性能。 Finally, the calibrated dictionary and the optimal STAP filter weight were obtained, which optimizes the performance of STAP algorithm in off-grid situation.
53680 通过仿真验证了所提算法消除离网误差的有效性。 The effectiveness of the proposed algorithm was verified by simulations.
53681 地基合成孔径雷达( Ground Based Synthetic Aperture Ｒadar，GBSAＲ) 是目前露天矿山工作帮及排土场进行亚毫米级形变监测的主要技术手段之一，但监测过程中出现的多径效应造成的差分相位变化会被错误识别为形变。 Ground based synthetic aperture radar ( GBSAＲ) is one of the main techniques for sub millimeter deformation monitoring of working slope and dump in open pit mine. However, the differential phase change caused by multipath effect in the monitoring process will be mistakenly identified as deformation.
53682 针对识别形变精度低的问题，本文开展了差分干涉相位时序特征表达方法的研究，并以此为基础提出了一种基于注意力网络模型的地基 SAＲ 时序差分相位分类方法，以形变变化趋势与区域范围作为依据来区分突变区域和缓变区域，通过模型预测出真实形变分布。 Aiming at the problem of low accuracy of deformation recognition, this paper studies the expression method of differential interferometric phase sequence features, and proposes a time-series differential phase classification method for ground-based SAＲ Based on attention network model. Based on the deformation trend and regional range, the abrupt change region and the gradual change region are distinguished, and the re- al deformation distribution is predicted by the model.
53683 经过实验结果证明，注意力网络模型可以较为准确的提取出形变分布，有效减少多径效应造成的误差干扰。 The experimental results show that the attention network model can accurately extract the deformation distribution, and effectively reduce the error interference caused by multipath effect.
53684 为了准确反映复杂环境下移动通信节点间的无线信道传播特性，本文研究了具有受限多普勒功率谱的信道仿真模型， In order to describe the wireless channel propagation characteristics in complicated radio environment, this paper proposes a novel channel model with restricted Doppler power spectrum.
53685 讨论了三种建模方法:单路滤波法、双路滤波法、改进拼接法的原理和仿真实现方法， The principles and implementation methods of three modeling methods are discussed in details, including single-path filtering method, dual-path filtering method, and improved splicing method.
53686 对比了典型模型生成信道随机过程的自相关函数、多普勒谱的算法复杂度和内存占用度。 The comparison analysis of autocorrelation function, Doppler spectrum, algorithm complexity and memory occupation of of the three typical models that generate the channel stochastic process are also presented.