Physical meaning: the self-correlation function and the energy spectrum density function compose a Fourier transform pair.

物理含义：能量信号的自相关函数与能量谱密度函数构成傅立叶变换对。

youdao

This paper studies the causality and analyticity characteristics in harmonic oscillator, and from which drives Hilbert transform pair.

本文对谐振子的因果律和解析性质进行了研究，并由此推导出谐振子的希尔伯特变换对。

youdao

Relationship between the target scattering function and the echo signal is deduced to hold as a Fourier transform pair by analyzing the texture of echo signal for a passive radar imaging system;

首先分析了无源雷达成像系统的目标回波形式，得到了目标散射分布函数和雷达接收信号之间的傅里叶变换对关系；

youdao

Actually, the view of vectors we take nowadays is that vectors are associated with a pair of numbers which, on the rotation of axes, transform like this.

实际上,今天我们讲矢量所用的观点是,矢量是和一组坐标值相对应的,在坐标轴旋转的过程中像这样变换

耶鲁公开课 - 基础物理课程节选

But it wasn't until the 2010 installment of the Games in Vancouver that Williams, who was born and raised by his West Indian mother in Canada, was spurred on to transform his pipe dream into a reality, as another pair of underdogs took on the establishment.

CNN: Cool Runnings: A skiing sequel for Jamaica's 'Dream Chaser?'