ID 原文 译文
20275 该算法中冗余字典的构造采用了Pei型分数阶傅里叶快速分解方法，不需要反复对信号进行时频域解耦，并且迭代次数较少，运算效率较高。 Pei type fractional Fourier decomposition method is used in construction of redundant dictionary. Modulation and demodulation between time and frequency domain are avoided in this method, which leads to improvement in fewer iteration times and higher arithmetic speed.
20276 现代星载合成孔径雷达(SAR)系统要求同时具备高分辨率和宽测绘带的能力，而传统单通道星载SAR系统在分辨率和测绘带两个重要指标之间存在固有矛盾，因此方位向多通道的方法被提出并用于解决上述问题。 The modern spaceborne SAR system requires both high resolution and wide swath, and the conventional single channel spaceborne SAR system has a contradiction between the two important indexes, the azimuth multichannel method is proposed and used to solve the above problem.
20277 该文在分析方位向多通道回波模型的基础上，结合Relax算法的特点，提出了一种基于Relax算法的星载SAR高分宽幅(HRWS)成像方法，并给出了新方法的详细迭代流程。 Based on the analysis of the azimuth multichannel echo model and the characteristics of the Relax algorithm, a spaceborne SAR HighResolution Wide Swath (HRWS) imaging method is proposed, and the iterative process of the new method is described in detail.
20278 通过点目标回波仿真，并与传统的方位向多通道HRWS重建方法进行对比，验证了新方法的可靠性和有效性。 By the simulation of point target echo, and comparing with the traditional azimuth multichannel HRWS reconstruction methods, the reliability and effectiveness of the proposed method are verified.
20279 针对直接利用卷积自编码网络未考虑视频时间信息的问题，该文提出基于贝叶斯融合的时空流异常行为检测模型。 Focusing on the problem that convolutional auto-encoder network based anomaly detection ignores time information, a novel anomaly detection model based on Bayesian fusion of spatial-temporal stream is proposed.
20280 空间流模型采用卷积自编码网络对视频单帧进行重构，时间流模型采用卷积长短期记忆(LSTM)编码-解码网络对短期光流序列进行重构。 A convolution auto-encoder network is used in spatial stream model to reconstructs video frames, anda convolutional Long Short-Term Memory (LSTM) encoder-decoder network is used to reconstruct short-termoptical sequence in the temporal stream model.
20281 接着，分别计算空间流模型和时间流模型下每帧的重构误差，设计自适应阈值对重构误差图进行二值化， Then, the reconstruction errors under spatial and temporal stream are calculated separately. Meanwhile, an adaptive thresholds is designed to obtain the reconstruction binary error maps.
20282 并基于贝叶斯准则对空间流和时间流下的重构误差进行融合，得到融合重构误差图，并在此基础上进行异常行为判断。 Finally, the Bayesian fusion strategy is developed to combine the reconstruction error of spatial and temporal stream to obtain the final fusion reconstruction error map based on which the abnormal behavior can be determined.
20283 实验结果表明，该算法在UCSD和Avenue视频库上的检测效果优于现有异常检测算法。 Experimental results show that the proposed algorithm is superior to the existinganomaly detection algorithms in UCSD and Avenue datasets.
20284 该文给出了基于差族的高斯整数互补序列构造方法。 Constructions of Gaussian integer periodic complementary sequences are presented in this paper.