spectrum amplitude

For a thin interbed of sand and shale, the periodicity of its amplitude or phase spectrum can be unveiled with Fourier analysis in a narrow window.

对砂泥岩薄互层段，用短时窗对地震道做傅里叶分析，可以显示薄层振幅谱和相位谱的周期性。

This paper analyzes the principle of time domain measurement function of high per-formance spectrum analyzer and its use in Amplitude modulation ( AM), Frequency modulation ( FM) and pulse modulation test.

本文分析了高性能频谱分析仪时域测量功能的原理，并给出其时域测量功能在调幅、调频、脉冲调制测试中的应用。

The pulse jitter of gain-switched Fabry-Perot laser with external cw-light injection was experimentally investigated by using harmonic spectrum analysis. The time jitter is 0.905 ps and amplitude noise is 2.83%.

利用谐波频谱分析法测量了外连续光注入下增益开关F-P激光脉冲的抖动，时基抖动为0.905ps、振幅噪声为2.83%，并与取样示波器的测量结果进行比较。

This paper contrasts the means of amplitude value with the means of power spectrum, and studies the bridge's change rule in track geometry status synthetically, it can provide tech support for establishing repair and maintain standard reasonably.

本文采用不平顺幅值和功率谱相对比的方法，综合分析大桥在重载快速行车条件下的轨道几何状态变化规律，为合理制定相应的养修标准提供了技术支持。

The spectrum amplitude of time delay disturbed signal equals to that of the original signal.

随机时脉迟延造成之受扰讯号其频谱强度与原讯号频谱相同.

Comparative items for dynamic difference research includes mooring line damping, dynamic tension force per unit amplitude, tension spectrum and tension RAO.

动态差异研究比较项目包括锚泊阻尼，单位振幅动态张力，张力谱以及张力传递函数RAO等。

This paper presents a new method of measuring difference: sampling numerical and self-power-spectrum amplitude correction method.

本文提出一种测量同频率正弦信号相位差的新方法: 采样数字和自功率谱幅值校正相位差测量法.