| 低频信号的精确采集与处理 |
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| 引用本文： | 蒋骏,苏红梅,张雁滨. 低频信号的精确采集与处理[J]. 大地测量与地球动力学, 2006, 26(3): 127-130 |
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| 作者姓名： | 蒋骏 苏红梅 张雁滨 |
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| 作者单位： | 华中科技大学物理系,武汉,430074;华中科技大学物理系,武汉,430074;华中科技大学物理系,武汉,430074 |
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| 基金项目： | 面向21世纪教育振兴行动计划(985计划) |
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| 摘 要： | 基于LabVIEW软件平台和NI采集卡，构建了一个具有较高精度和高采样率的固体潮采集观测系统。通过对比采集观测及实例分析，结果表明：该采集系统精度较高，准确性好，具有较好的长期稳定性，可以作为固体潮及长周期形变仪器的通用采集系统。
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| 关 键 词： | 固体潮 数据采集 信号处理 采集精度 调和分析 |
| 文章编号： | 1671-5942(2006)03-0127-04 |
| 修稿时间： | 2006-04-11 |
ACCURATE ACQUISITION AND PROCESSING OF LOW FREQUENCY SIGNAL |
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| Jiang Jun,Su Hongmei,Zhang Yanbin. ACCURATE ACQUISITION AND PROCESSING OF LOW FREQUENCY SIGNAL[J]. Journal of Geodesy and Geodynamics, 2006, 26(3): 127-130 |
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| Authors: | Jiang Jun Su Hongmei Zhang Yanbin |
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| Abstract: | The high precision and sampling acquisition rate observing system of the earth tides was build based on the software platform LabVIEW and acquisition cards NI. By comparing acquisition and observation and example analysis, the problems are identified and the improved projects are brought forward, and then the observation system is improved accordingly. In addition, with harmonic analysis of gravity tides and tilt tides, the long-term stability of the acquisition system is studied. The results show that the acquisition system is of high accuracy, high precision, and good long-term stability, it can serve as the general acquisition system of the earth tides and the long cycle deformation apparatus. |
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| Keywords: | the earth tide data acquisition digital signal processing acquisition accuracy harmonic analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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