The application rule of simple symmetrical wave signal magneto-optical modulation in spatial azimuth measurement

被引：3

作者：

Yang, Zhiyong ^{[1
]}

Huang, Xianxiang ^{[1
]}

Zhou, Zhaofa ^{[1
]}

Zhang, Zhili ^{[1
]}

机构：

[1] Xian Res Inst High Tech, Xian 710025, Peoples R China

来源：

OPTIK | 2014年 / 125卷 / 03期

关键词：

Symmetrical wave; Magneto-optical modulation; Azimuth measurement; Application rule;

D O I：

10.1016/j.ijleo.2013.07.163

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The purpose of the study is to summarize the application rule of sine wave and other simple symmetrical wave signal magneto-optical modulation in azimuth measurement, and acquire the limit on modulation signal when establishing azimuth measurement model. Firstly, we analyze the principle of traditional azimuth measurement system based on sine wave signal magneto-optical modulation, and establish the error free measurement model based on trigonometric function, after that we present the measurement models based on mixed signal with tangent, cosine and sine function, respectively. Secondly, we discuss the application feasibility of rectangle wave, triangle wave and sawtooth wave signal magneto-optical modulation in azimuth measurement respectively, and establish the azimuth measurement models based on rectangle wave and triangle wave signal modulation respectively, and analyze the reason why the sawtooth wave signal modulation cannot be applied in the azimuth measurement. Finally, we summarize the four simple signal magneto-optical modulation and acquire the requirements on modulation signal when establishing the azimuth measurement model based on simple wave single magneto-optical modulation. The study has an important guiding significance on the application of simple symmetrical wave magneto-optical modulation in azimuth measurement. (C) 2013 Elsevier GmbH. All rights reserved.

引用

页码：1042 / 1048

页数：7

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