Unbiased Estimation of Instantaneous Frequency Using the Discrete WVD

孙圣和; 吴岩巍

您当前的位置：

首页 >

文章列表页 >

Unbiased Estimation of Instantaneous Frequency Using the Discrete WVD

更新时间：2025-12-08

- Unbiased Estimation of Instantaneous Frequency Using the Discrete WVD
- Acta Electronica Sinica Issue 9, (1996)
- 作者机构：
  
  哈尔滨工业大学无线电工程系
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.7
- Published：1996
- 稿件说明：
移动端阅览
[1]孙圣和,吴岩巍.WVD瞬时频率无偏估计研究[J].电子学报,1996(09):102-105.

孙圣和, 吴岩巍. Unbiased Estimation of Instantaneous Frequency Using the Discrete WVD[J]. Acta Electronica Sinica, 1996, (9).
[1]孙圣和,吴岩巍.WVD瞬时频率无偏估计研究[J].电子学报,1996(09):102-105. DOI：

孙圣和, 吴岩巍. Unbiased Estimation of Instantaneous Frequency Using the Discrete WVD[J]. Acta Electronica Sinica, 1996, (9). DOI：

摘要

通过检测Ｗｉｇｎｅｒ－Ｖｉｌｌｅ分布（ＷＶＤ）的峰值估计信号瞬时频率的方法（ＷＶＤ）频率估计器），对常幅、线性调频信号是无偏的。本文利用该估计器估计调幅－调频信号的瞬时频率时发现：如果信号满足Ｂｅｄｒｏｓｉａｎ定理，那么调幅对瞬时频率估计没有影响，从而，扩展了ＷＶＤ频率估计器的无偏条件。

Abstract

The estimation of instantaneous frequency using the peak of the Wigner-Ville distribution（WVD） is unbiased for sinusoid of constant amplrtude and linear modulated frequency. In this paper we analyze the effects of the time-varying amplitude of a monocomponent signal on the WVD peak estimator

and find that if the modulated signal satisfies the Bedrosian theorem

the time-varying amplitude does not affect the estimation of instantaneous frequency.And the unbiased condition of the peak estimator is loosened.

关键词

Keywords

references

Views

246

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Real-Time Gesture Recognition Algorithm Based on LoRa Signals

ECG Motion Artifact Filtering Based on Two-Stage Adaptive Threshold Rules

Algorithm to Eliminate Permutation of Frequency Domain Blind Source Separation Based on Influence Factor

Near-Field Source Localization Based on Sparse Symmetric Array

Related Author

HAN Chong

DU Hao

GUO Jian

SUN Li-juan

LÜ Jian-hang

LI Yu-rong

CHEN Jian-guo

GAO Ning

Related Institution

College of Computer, Nanjing University of Posts and Telecommunications

Jiangsu Key Laboratory of Intelligent Sensing and Computing for Internet of Things

College of Electrical Engineering and Automation， Fuzhou University

Fujian Key Laboratory of Medical Instrument and Pharmaceutical Technology

College of Electrical and Information Engineering, Hunan University

⁰