| 基于同步相敏解调技术的三端式磁通门信号处理 |
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| 引用本文： | 李志新,张朝阳.基于同步相敏解调技术的三端式磁通门信号处理[J].舰船电子工程,2011,31(4):179-182. |
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| 作者姓名： | 李志新 张朝阳 |
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| 作者单位： | 海军工程大学电气与信息工程学院,武汉,430033 |
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| 摘 要： | 文章研究了三端式磁通门测磁仪信号的同步相敏解调技术。在磁通门测磁仪基本工作原理的基础上,首先分析了三端式磁通门测磁仪在方波激励下的输出信号组成,微弱的偶次谐波中包含了待测磁场信号。简述了同步相敏解调技术及其检测微弱信号的特性,根据三端式磁通门测磁仪输出信号的特点,讨论了采用基于电子开关的同步相敏解调技术解调待测磁场信号的可行性和优越性,为三端式磁通门测磁仪信号处理电路的设计提供了重要理论依据。
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| 关 键 词： | 磁通门 同步相敏解调 偶次谐波 |
Signal Process of Fluxgate with Three Tips Based on Synchronous Phase Sensitive Demodulation Technology |
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| Li Zhixin,Zhang Zhaoyang.Signal Process of Fluxgate with Three Tips Based on Synchronous Phase Sensitive Demodulation Technology[J].Ship Electronic Engineering,2011,31(4):179-182. |
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| Authors: | Li Zhixin Zhang Zhaoyang |
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| Institution: | Li Zhixin Zhang Zhaoyang (College of Electrical and Information Engineering,Naval University of Engineering,Wuhan 430033) |
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| Abstract: | Signal process of fluxgate with three tips based on synchronous phase sensitive demodulation technology was studied in this paper.Based on the essential principle of fluxgate magnetometer,the component of outputting signal of fluxgate magnetometer with three tips drove by square wave was analyzed firstly,and the magnetic signal to be detected contained in the weak even harmonics.And then synchronous phase sensitive demodulation technology and its ability of weak signal detection have been said briefly,accor... |
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| Keywords: | fluxgate synchronous phase sensitive demodulation even harmonic |
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