您要查找的是不是：
- Fourier amplitude spectrum 傅立叶幅值谱
- In the system,fast Fourier transform and multichannel signal time domain waveform,amplitude spectrum and cross-power spectrum is plotted and displayed. 该系统实现了快速傅里叶变换,多通道时域波形,幅值谱,互功率谱的绘制与显示。
- We quantify and simplify the model in order to simulate, we write the poincare maps, axes contrails, phase plane portraits, times-history and amplitude spectrum program. 对建立的动力学模型,编写相应的庞卡莱图,轴心轨迹图,相位图,波形图,频谱图的作图分析程序。
- The radially averaged log amplitude spectrum of potential field can be modeled by lines with different slopes, which are the depths of the corresponding equivalent source layers. 位场信号的径向平均对数振幅谱可以由多条斜率不同的直线段拟合，直线的斜率即为相应的等效层的深度。
- If there is hydrocarbon in the formation, an abnormal value will occur in the low frequency part of the amplitude spectrum ratio eurve o On the contrary, when no hydrocarbon exists in the formation there will be no abnormal value on the curve. 当地层含有油气时,在振幅谱比曲线的低频部分就出现异常值; 反之,不含油气时,就不出现振幅谱曲线异常。
- By the decomposition of the minimum and maximum phase components, the group of wavelets with the same amplitude spectrum and different phase spectrum could be found in cepstrum domain. 摘要利用子波的最大相位和最小相位分解技术，在复赛谱域得到一组具有相同振幅谱、不同相位谱的子波集合。
- The method not only can be applied to the complex reflection spectrum but also can be adapted to treat the amplitude spectrum alone, therefore it makes the method more practicactical. 此方法既适用于已知复反射系数谱,又适用于只知道反射系数振幅情况,从而使本方法更实用。
- first-order spatial amplitude spectrum 基频模
- amplitude spectrum characteristic 幅频特性
- A New Method of Correcting Amplitude Spectrum Based on DSP 基于DSP修正幅值谱的一种新方法
- The spectrum characteristics of the phase truncation error and amplitude quantization error are analyzed by the method of Fourier series. 文章最后还简单介绍了几种改善杂散误差的方法。
- Sound waves are measured by their amplitude. 声波是根据其振幅来测量的。
- The survey covered a broad spectrum of topic. 这本简史涉及的话题范围很广。
- The amplitude or loudness of a sound. 音量声音的响度或强度
- Red and violet are at opposite ends of the spectrum. 红色和紫色位于光谱相对的两端。
- By their comprehensiveness and amplitude these picture fille the imagination. 这些照片以其综合性和丰富而充满了想像力。
- Principles of Fourier Optics and Diffraction. 傅立叶光学和衍射原理。
- First course in wavelets with fourier analysis II. 小波与傅里叶分析基础2。
- It analyses the content of a sound and derives the Fourier spectrum. 该曲线分析了声音的构成并推出傅里叶频谱。
- There's a wide spectrum of opinions on this problem. 对这个问题的说法众说纷纭，莫衷一是。
