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- This paper proposes a novel method for detecting gas leakage from cracks in pipes using acoustic signal power spectrum analysis and clustering support vector machine(CSVM). 本文提出了一种基于声学信号功率谱分析和聚类支持向量机的检测管道损坏导致气体泄漏的新方法。
- (2) The probationary period plan estimates the signal power spectrum; 试用周期图法估计信号的功率谱;
- A decrease in signal power as measured between two points. 信号能量在两点间测量出来的减小量。参阅signal。
- Surface electromyography signal power spectrum during static load using two-dimensional mapping analysis 静态负荷表面肌电信号功率谱的二维地形图分析
- Power spectrum of the autodyne signal of CO2laser[J]. 引用该论文 戴永江;王林;皮名嘉.
- Effects of Noise and Music on EEG Power Spectrum. 噪声和音乐对脑电功率谱的影响。
- signal power spectrum 信号功率谱
- The DC loop is essential however, to convey the signal power. 直流回路是必需传达讯息。
- This method resolves the problem of signal detection with high side lobe levels, but loses information of the power spectrum density. 这样解决了高旁瓣下信号检测的问题,但却丢失了功率谱密度信息。
- The gain is the amount of increase in signal power or voltage. 增益就是信号功率或电压增加的数量。
- After the signal is decomposed and reconstructed by wavelet functions, the unmeasurabled noise jamming is eliminated, then use power spectrum coefficient method to analyse it. 实验表明这种方法与单一使用功率谱比值法的方法相比,动作模式识别率得到了提高。
- By DEMON we can get more and stabler line spectrum information than by LOFAR, which is to make power spectrum analysis of signal directly. Several demodulation methods are introduced and compared. 通过包络解调技术可获得轴频等调制信息,这就是常用的DEMON谱分析方法。
- By the relation between the Allan variance of signal noise and power spectrum density (PSD), the sources of some kinds of noise and its properties are analyzed and calculated using fitting algorithm in the least square method(LSM). 根据光纤陀螺信号漂移和噪声的Allan方差与功率谱密度(PSD)关系,在Allan标准差模型的基础上采用最小二乘法(LSM)进行样本数据拟和,有效地分离和辨识出了光纤陀螺零漂信号中的各项误差源随机误差系数和误差贡献大小。
- The flow field of the precessing jet is obtained by a hot wire anemometer at the nozzle exit and the precession frequency is identified from a power spectrum density analysis to the velocity signal. 用热线风速仪测量出口射流的速度并进行功率谱分析,得到旋进射流的频率及流场特性。
- The temporal power spectrum of atmosphere turbulence-induced wavefront error fo r laser-guide-star (LGS) is analyzed. 分析了激光导星发出的波前通过湍流大气所造成的波前相位畸变的时间功率谱;
- Just the signal source and the load on the DC loop should share the signal power. 作为信号源和负载的直流回路功率应分担信号。
- The absolute summability of autocorrelation sequence imposes only the continuity constraint on the power spectrum. 另外,绝对可加性自相关数列之假设只是意指在频谱中必须连续。
- In another words, the diode causes the signal power to be restricted to the signal power source and the load. 换句话说,造成信号二极管限于信号电源和负荷。
- As showed in the wavelet power spectrum figures,ENSO influences the Luzon Strait transports at different layers. 吕宋海峡年际体积(热量)输送的小波谱图较明显地反映出ENSO现象对吕宋海峡不同层次的输送均产生一定影响。
- An increase in signal power, voltage, or current by an amplifier, expressed as the ratio of output to input. 扩大率,倍率扩大器中功率、电压、电流输出量的增加值与输入量之比