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- Theoretical and actual result analyses show that high frequency detection is an effective method in the prediction of carbonate reservoir beds. 理论及实际效果分析表明 ,高频检测是预测碳酸盐岩储集层的有效方法 ,该方法在充分利用地震波的频率信息预测岩性及油藏领域方面开辟了一新思路 ;
- DSO covers the theories of signal pretreatment, data collection, frequency detection, automatic control, analysis of frequency spectrum and data processing. 其中涉及到信号预处理、数据采集、同步触发、测频、自动控制、数据显示和处理、频谱分析等诸多方面的理论。
- Using Mallat algorithm on the basis of wavelet transform and multiresolution analysis(MRA) in connection with traditional FFT,a new speech signal fundamental frequency detection method is presented. 将基于小波变换与多分辨分析 (MRA)下的Mallat算法与传统的快速傅立叶变换(FFT)相结合 ,提出了一种新的语音信号的基音频率检测方法。
- frequency detection by taking count of the pulses 脉冲计数式鉴频
- Dual Tone Multi Frequency detection [DTMF detection] 双音调多频探测
- Methods 25 patients who had foreign body inside the digestive tract but the X-ray exploration was negative, were exarnined with ultrasonic inspection with high and Iow frequency detecting head. 方法对25例有明确异物吞入史,但X线探查为阴性的患者,运用超声高、低频探头对可疑部位进行探查定位。
- Whole frequency detection method of the weak sine signal 微弱正弦信号的全频域检测方法
- He varied the transmission frequency. 他变换了无线电传送的频率。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- Instantaneous Frequency Detection Approach Using Topology Contravariant Functor 基于拓扑反变算子的瞬时频率检测方法
- Weak Sinusoidal Signal Frequency Detection Via The Array Of Duffing Oscillators 杜芬振子阵列实现弱正弦信号频率检测
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- driving frequency detecting method 驱动频率检测系统
- Speech Signal Fundamental Frequency Detection Based on Wavelet Transform 基于小波变换的语音信号基音频率检测法
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
- Recognition of Double-curvature Arch Bridge Natural Frequency Detection Signal Using Welch Power Spectrum Estimation Welch法在双曲拱桥固有频率检测信号识别中的应用
- He manipulated the frequency dial of the radio. 他开始调拨频率键盘。
- The pitch depends on the frequency. 音调的高低是由频率决定的。
