ID 原文 译文
8764 最后,利用自适应阈值方法进一步除噪,改善信号质量。 Finally, using the adaptive threshold method in addition to the noise, further improve the signal quality.
8765 实验结果表明,与其他5种方法相比,所提消噪方法可以有效抑制噪声,保留脉冲星信号细节信息,具有更高的消噪性能。 The experimental results show that, compared with the other five kinds of methods, the proposed denoising method can effectively suppress noise and keep the details of the pulsar signal, has better denoising performance.
8766 以Ka频段宽带干涉测量为背景,分析了通道群时延的主要表现形式。 With Ka band broadband interference measurement as the background, the major form of channel group delay are analyzed.
8767 针对通道宽带群时延非线性失真问题,提出了基于相位校正信号互相关的标校方法。 For nonlinear distortion channel broadband group delay, phase correction is proposed based on signal cross-correlation method of calibration.
8768 利用相位标校信号梳状谱和线性相位特性,通过提取相位标校信号的互相关相位谱获取通道的相频特性曲线,并以此计算通道的群时延。 By use of the comb spectrum phase calibration signal and linear phase characteristic, by extracting phase calibration signal cross-correlation phase spectrum access channel phase frequency characteristic curve, and thus calculate the group delay channel.
8769 针对抛物线型群时延,采用三阶非线性拟合代替传统的一阶线性拟合。 For parabolic group delay, the use of third order nonlinear fitting instead of the traditional first-order linear fitting.
8770 仿真结果表明,在信噪比为-10dB的条件下,三阶拟合比一阶拟合与原始相频特性曲线有更高的吻合度,且标准差为一阶拟合的1/4,得到的群时延结果逼近真实群时延,证实了算法的有效性。 The simulation results show that the SNR conditions for - 10 db, the third order fitting than first-order fitting to the original phase frequency characteristic curve has a higher alignment, and standard deviation for a quarter of first-order fitting, get close to real group delay, group delay results confirm the validity of the algorithm.
8771 近似消息传递(approximate message passing,AMP)的高相变性能与低计算复杂度使其非常适用于图像重构等大数据量应用领域。 Approximate messaging (approximate message passing, AMP) of high phase transition performance with low computational complexity makes it very suitable for large amount of data application fields such as image reconstruction.
8772 如何充分利用图像的结构化稀疏先验是基于AMP研究图像重构的一个关键问题。 How to make full use of the structured sparse prior of the image is a key problem of image reconstruction based on AMP research.
8773 将卡通-纹理模型引入AMP图像重构,根据迭代滤波中待处理图像卡通、纹理成分的不同特点,设计基于双树复数小波变换与全变差的层次化AMP滤波算子; Will introduce a cartoon - texture model AMP image reconstruction, according to the iterative filtering to be processed in the different characteristics of the cartoon image, texture component design based on dual tree complex wavelet transform and the total variation of hierarchical AMP filter operator.