ID 原文 译文
14855 该系统可应用于对不同形状的物体进行分类，如流水线工厂中分类不同形状的物件，工业上检测固定形状零件损坏情况等。 The system can be used toclassify different shapes of objects, such as classifying different shapes in assembly line factories,and detecting the damage of fixed shape parts in industry.
14856 语音端点检测是声源定位中一个非常重要的环节。 Speech endpoint detection is a very important part in sound source localization.
14857 在高信噪比环境下，双门限法语音端点检测具有很好的效果，但在低信噪比环境下双门限语音端点检测性能迅速降低，端点检测无法达到预期效果。 The doublethreshold speech endpoint detection has a good effect In high SNR environment, but the performanceof double threshold speech endpoint detection decreases rapidly and the endpoint detection can notachieve the expected effect in low SNR environment.
14858 为此，将传统的双门限法中的短时能量和短时平均过零率分别替换成短时 Teager 能量和频谱质心特征，提出了一种改进的双门限语音端点检测算法。该法首先对分帧加窗后的每一帧带噪语音进行经验模态分解求其短时 Teager 能量，然后对语音信号进行短时傅里叶变换求其每一帧语音的频谱质心，最后对特征曲线进行中值滤波平滑处理后再选取合适的门限值。 The short-term energy and short-term average zerocrossing rate in the traditional double threshold method are replaced by short-term Teager energy andspectral centroid features respectively. Then an improved double threshold speech endpoint detectionalgorithm is proposed. Firstly, the empirical mode decomposition (EMD) is used to calculate the shorttime Teager energy of the noisy speech in each frame after windowing.
14859 仿真实验表明，所提出的改进算法在低信噪比环境下比传统的双门限法具有更好的端点检测效果。 Then, the short-time Fouriertransform is used to calculate the spectral centroid of each frame. Finally, the median filter is usedto smooth the characteristic curve, and then the appropriate threshold value is selected. Simulationresults show that the improved algorithm has better endpoint detection effect than the traditionaldouble threshold method in low SNR environment.
14860 首先简述了电阻抗成像基本原理，系统构成，技术优势。 Firstly, the basic principle, system structure and technical advantages of electricalimpedance imaging are introduced.
14861 其次针对局部细剖分静态重构图像抗噪性能较差，为提高其重构图像抗干扰性，将节点法引入到局部细剖分重构算法中进行优化，形成以局部细剖分为基础的节点法图像重构。 Secondly, in view of the poor anti-noise performance of thestatic reconstructed images with local fine subsection, in order to improve the anti-interferenceperformance of the reconstructed images, the node method was introduced into the local fine subsectionreconstruction algorithm for optimization, and the node method based on local fine subsection wasformed.
14862 仿真实验证明 ：基于节点法的局部细剖分重构图像在抗噪性能和成像效果方面均明显优于局部细剖分成像，达到了预期效果。 The simulation results show that the local fine section reconstruction image based on the nodemethod is superior to the local fine section image in terms of anti-noise performance and imagingeffect, and achieves the expected effect.
14863 综合试验支撑平台需对系统中的关键分立器件进行测试筛选，以保证系统测试的准确性。分立器件测试过程中涉及多项微弱电流、微弱电压信号的施加及测量，平台测试系统的噪声、外部电磁干扰等都会对此类信号的测量精度造成影响，致使测试结果与实际值偏离。本文就微弱电流源产生、微弱电流测量、微弱电压测量及系统级干扰进行了分析，并针对性提出来解决方案。 To ensure the accuracy of the system test，The integrated platform of test support needsto test and screen the key discrete devices of the system。The testing process of discrete devicesinvolves the application and measurement of multiple weak current and weak voltage signals.The noiseof the testing system in the platform and external electromagnetic interference will affect the measurement accuracy of these signals, resulting in deviation between the test results and the actual value.In this paper, the generation of weak current source, weak current measurement, weak voltage measurement andsystem level interference are analyzed, and the targeted solutions solutions are put forward.
14864 为了更加有效与合理地适应无线传感器网络性能需求的动态变化，本文将博弈论引入到传统的无线传感器网络拓扑控制中，并基于拓扑博弈控制对双效用函数予以采用，得到一种双效用函数应用下的无线传感器网络拓扑博弈控制算法。 In order to more effectively and reasonably adapt to the dynamic change of wireless sensornetwork performance requirements, the paper uses game theory into traditional wireless sensor networktopology control, and adopts double-effect functions based on topological game control. On this basis,a topology game control algorithm for wireless sensor networks based on the application of doubleeffect function is proposed.