ID 原文 译文
25655 引入归一化最小和(Normalized Minimum Sum，NMS)译码算法，在校验点信息数据量化的基础上乘以一个取值区间为(0，1)的改进因子减小误差。 The NMS decoding algorithm is introduced to reduce the error by multiplying an improved factor with a value range of (0,1) on the basis of quantization of check point information data．
25656 通过研究改进因子的合理取值，提出了一种随迭代次数取不同改进因子改善量化结果的新量化方法。 By studying the reasonable value of the improvement factor, a new quantization method is proposed to improve the quantization results by taking different improvement factors with the iteration times．
25657 研究对象为空间数据咨询委员会(The Consultative Committee for Space DataSystems，CCSDS)标准中近地空间应用的(8176，7154)LDPC 码，在 MATLAB 上设计编译码算法程序并完成仿真。 The research object is the (8176，7154)LDPC code of near earth space application in the CCSDS standard. The encoding and decoding algorithm program is designed and simulated on MATLAB．
25658 仿真结果表明改进量化方法完成译码所需的迭代次数更少，提高了译码性能。 Simulation results show that the improved quantization method needs less iterations to complete decoding and improves the decoding performance．
25659 通过分析不同信噪比下迭代次数的变化，发现在较高噪声干扰下优势更明显。 By analyzing the change of iteration times under different signal-to-noise ratio, the advantage is more obvious under higher noise interference．
25660 为了满足集成微波器件进行高分辨率微波近场测量的需求，本论文提出了一种基于金刚石氮空位(Ni-trogen-Vacancy，NV)色心的微波近场成像技术。 In order to meet the needs of integrated microwave devices for high-resolution microwave near-field measurement, this paper proposes a microwave near-field imaging technology based on the diamond Nitrogen-Vacancy (NV)colorcenter．
25661 该技术可用于查找芯片等集成微波器件的干扰源和信号串扰。 This technology can be used to find interference sources and signal crosstalk of integrated microwave devices such as chips．
25662 此微波近场成像方法采用金刚石 NV 色心颗粒作为场传感器，其中金刚石颗粒固定在锥形光纤的末端。 This microwave near-field imaging method uses diamond NV color center particles as a field sensor, where the diamond particles are fixed at the end of a tapered fiber．
25663 由于塞曼效应，NV 色心的光探测磁共振(Optical Detection Magnetic Ｒesonance，ODMＲ)谱在外部静磁场环境中会分裂成为 8 个峰，通过测量共振峰频点的 Ｒabi 振荡谱，能够得到 Ｒabi 频率，接着通过 2. 8MHz/Gauss 换算得出该处的微波场强度，最后通过将所测得所有数据点进行二维图像处理即可得到所测芯片和集成微波器件的表面微波场近场图像。 Due to the Zeeman effect, the optical detection magnetic resonance (ODMＲ) spectrum of the NV color center will split into 8 peaks in the external static magnetic field environment. By measuring the Ｒabioscillation spectrum of the resonance peak frequency point, the Ｒabi frequency can be obtained, and then use 2. 8MHz / Gaussto calculate the microwave field strength. Finally，the near-field image of the surface microwave field of the chip and the integrated microwave device can be obtained by performing two-dimensional image processing on all measured data points．
25664 针对短文本特征稀疏性问题，提出一种熵权约束稀疏表示的短文本分类方法。 Aiming at the problem of short text feature sparsity, a short text sparse representation classification method based on entropy weighted constraint is proposed．