| 基于虚拟仪器LabView的数字相敏检波算法仿真研究 |
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| 引用本文： | 梁培艳. 基于虚拟仪器LabView的数字相敏检波算法仿真研究[J]. 电子质量, 2012, 0(8): 7-9,24 |
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| 作者姓名： | 梁培艳 |
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| 作者单位： | 电子科技大学电子工程学院,四川成都,611731 |
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| 摘 要： | 微弱信号检测在现在科技发展中起着至关重要的作用,它的检测精度直接影响着天文,生化,物理等科技的发展进度。该文介绍了基于虚拟仪器技术和分段累加相关数字相敏检波算法对于微弱方波信号的检测,用于检测微弱直流信号。通过仿真此方法能有效地检测到微弱方波信号的幅值,进而可以用于检测微弱直流信号的幅值。
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| 关 键 词： | 微弱信号检测 LabView 累加相关 微直流检测 |
Simulation Study of Digital Phase Sensitive Detector Algorithm Based on LabView Virtual Instrument |
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| Liang Pei-yan. Simulation Study of Digital Phase Sensitive Detector Algorithm Based on LabView Virtual Instrument[J]. Electronics Quality, 2012, 0(8): 7-9,24 |
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| Authors: | Liang Pei-yan |
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| Affiliation: | Liang Pei-yan(School of Electronic Engineering,UESTC,Sichuan Chengdu 611731) |
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| Abstract: | Weak signal detection play a crucial role in the development of science and technology.Its detection accuracy affect the astronomical,biochemical,physics and other science development progress directly.This paper introduces weak signal detection of square wave based on virtual instrument technology and digital detection phase sensitive algorithm of subsection accumulating and relating.This method can be used to detect weak dc signal.Through simulation this method can detect the amplitude effectively of weak square wave signal and can be used to detect amplitude of weak dc signal. |
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| Keywords: | Weak signal detection LabView(Laboratory Virtual Instrument Engineering Workbench) accumulating and relating weak dc signal dection |
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