Physical Foundations of Signal's Power Density Spectrum

CHEN Yan-pu; BIAN Zheng-zhong; ZHANG Jie-qiu

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Physical Foundations of Signal's Power Density Spectrum

更新时间：2025-07-16

- Physical Foundations of Signal's Power Density Spectrum
- Acta Electronica Sinica Vol. 29, Issue 10, Pages: 1427-1429(2001)
- 作者机构：
  
  1. 西安交通大学,陕西,西安,710049
  2. 空军工程学院,陕西,西安,710038
  3. 西安交通大学陕西西安,710049
  4. 空军工程学院陕西西安,710038
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911
- Published：2001
- 稿件说明：
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CHEN Yan-pu, BIAN Zheng-zhong, ZHANG Jie-qiu. Physical Foundations of Signal's Power Density Spectrum[J]. Acta Electronica Sinica, 2001, 29(10): 1427-1429.
DOI：

CHEN Yan-pu, BIAN Zheng-zhong, ZHANG Jie-qiu. Physical Foundations of Signal's Power Density Spectrum[J]. Acta Electronica Sinica, 2001, 29(10): 1427-1429. DOI：

摘要

借助于信号对简谐振子和简谐振子阵列的作用

定义了信号的瞬时能量谱密度

进一步引入了信号的瞬时能量、功率谱密度、功率、能量谱密度及总能量等基本物理量.给出了功率谱密度的主要性质以及功率谱密度与其它各物理量之间的关系.

Abstract

In virtue of the actions of a signal upon harmonic oscillator and harmonic oscillator array

the instantaneous energy density spectrum of a signal is defined.Furthermore

definitions of the instantaneous energy

the power density spectrum

the power

the energy density spectrum and the total energy of a signal are introduced.Properties of power density spectrum and the relationships between the power density spectrum and other physical quantities are presented.

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