| 1. | Frequency spectrum characteristics of electromagnetic emission of loaded coal
受载煤体电磁辐射的频谱特征 |
| 2. | Separation of artery and vena in cerebral cortex based on spectrum features
基于频谱特征的脑皮层动静脉分离 |
| 3. | Research and analysis were carried on frequency spectrum characteristics of loaded coal ' s eme during deformation and fracture process
摘要对受载煤体变形破裂时电磁辐射( eme )的频谱特征进行了研究分析。 |
| 4. | Experimental results showed that the composites exhibited multiple damage modes and the characteristics of ae signals were remarkably affected by damage mechanism
实验分析表明，拉伸过程中破坏机制对声发射信号的特征具有显著影响，不同损伤模式的信号频谱特征存在明显的差异。 |
| 5. | Here we used wavelet and spectral analysis to different kind seismic waves in volcanic area , in order to pick up their spectral character and determine the type of these earthquakes
本文对火山区不同种类的地震波形运用小波分析和频谱分析的方法，希望能提取不同类型火山地震的一些频谱特征，确定火山地震的类型。 |
| 6. | Finally , this thesis constructs the system of speech emotion recognition by importing the processed cepstral features to neural network model , and proves the efficiency of the proposed method according to the experiments
最后,本文将处理后的频谱特征参数同原有的人工神经网络模型有效地结合起来,形成完整的语音情感识别系统,取得了较为满意的识别结果。 |
| 7. | A sorting method of the helicopter noise sources is given . the temporal waveform and spectrum of the noise signature is analyzed . at last , the sound pressure spectrum density level is estimated with the experimental data taken from a specific navy helicopter
扼要阐述了直升机噪声的产生和分类，考察了直升机信号的波形和频谱特征，并对特定的直升机噪声的声压谱密度级进行了计算。 |
| 8. | The test results show that different patterns of pd correspond to different demodulating signal waveforms , the pd phase angle in ac , and spectrum characteristics . therefore the pd patterns can be recognized by the uhf characters of different pd signals in gis
试验结果表明，不同缺陷类型的局部放电在其检波信号波形、局部放电工频相位分布和超高频频谱特征是有所不同的，可以依据这些特征对gis内的局部放电类型进行识别。 |
| 9. | After analyzing the result of the experiment and the feature for text - independent recognition , we make a solution to the defects of the system . then long - time spectrum parameter and lpcc or mfcc are blended to be studied in detail to make the feature parameter . using these technologies , a high recognition rate was made
针对单独使用lpcc或mfcc应用于说话人识别中存在识别率还不够高的问题,分析了原因,然后又对长时频谱特征进行了研究,并把长时频谱特征分别与lpcc和mfcc结合起来共同应用于说话人识别试验,从而在一定程度上减少了单独使用lpcc或mfcc运用于说话人识别中存在的问题,提高了系统的识别性能,取得了较好的效果。 |
| 10. | The moving manner of reciprocating i . c . e . shows its working processing of shock characteristic , simultaneously generates wild vibration and noise signal and often changes its operate speed . so it ' s difficult to get unique and simple spectrum unlike a rotary machine
内燃机往复式活塞和曲柄连杆机构的运动方式，决定了它具有冲击特点的工作过程，并且在实际应用中这种过程还是变工况的，它所产生的振动与噪声信号十分杂乱，不像旋转机械那样具用简洁的频谱特征。 |
