Method for estimating power spectral density in pulsed carrier phase noise measurements

被引：2

作者：

Chen, Xiaolong ^{[1
]}

Wang, Jiali ^{[1
]}

Sun, Lu ^{[1
]}

Feng, Dan ^{[1
]}

机构：

[1] School of Mechano-Electronic Engineering, Xidian Univ.

来源：

Xi'an Dianzi Keji Daxue Xuebao/Journal of Xidian University | 2012年 / 39卷 / 04期

关键词：

Phase noise; Power spectral density; Pulsed carrier signal; Welch method;

D O I：

10.3969/j.issn.1001-2400.2012.04.025

中图分类号：

学科分类号：

摘要：

To improve the performance of power spectral density estimation used in pulsed carrier phase noise measurement, the mathematical model of phase noise is established, the relation between phase noise and power spectrum of noise is analyzed, and a power spectral density estimation method based on the Welch method is developed. According to this method, the scheme for the data segment and the length of the window function are determined by the pulsed modulation parameter of the measured signal. Simulation results show that the proposed method has better performance on spectrum estimation than the existing ones.

引用

页码：138 / 143

页数：5

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