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论文:2013,Vol:31,Issue(1):19-24 |
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引用本文： |
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何鹏举, 秦丽丽, 吴琼, 冯亮, 张捷. 音频测距信号实时消噪及半实物仿真[J]. 西北工业大学 |
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He Pengju, Qin Lili, Wu Qiong, Feng Liang, Zhang Jie. Audio Ranging Signal De-Noising and Hardware-in-the-Loop Simulation[J]. Northwestern polytechnical university |
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| 音频测距信号实时消噪及半实物仿真 |
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| 何鹏举1, 秦丽丽1, 吴琼2, 冯亮1, 张捷1 |
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1. 西北工业大学 自动化学院, 陕西 西安 710172;
2. 甘肃省地矿局 第一地质勘察院, 甘肃 天水 741020 |
| 摘要: |
| 针对声波测距系统噪声复杂,淹没在噪声中的回波难以检测的问题,文章利用时间序列分析法对音频测距系统建立了ARMA模型,采用改进的递推最小二乘算法(RELS)实现了ARMA模型系数的实时估计,在ARMA模型的基础上,利用卡尔曼滤波算法对音频测距信号实时补偿,并构建了一种半实物仿真系统。仿真结果表明,该方法具有很好的实时滤波效果,能有效地抑制噪声,提高回波测距仪的精度。 |
| 关键词:
音频测距信号
时间序列建模
RELS
卡尔曼滤波
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| Audio Ranging Signal De-Noising and Hardware-in-the-Loop Simulation |
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| He Pengju1, Qin Lili1, Wu Qiong2, Feng Liang1, Zhang Jie1 |
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1. Department of Automatic Control, Northwestern Polytechnical University, Xi'an 710072, China;
2. The First Geology Survey Institute, Gansu Bureau of Geology and Mineral Resources, Tianshui 741020, China |
| Abstract: |
| Aiming at the problem of the difficulty to detect complex noise in acoustic ranging system and weak ech-oes from signal with high noise, the audio ranging system is analyzed by means of time series analysis.The auto re-gressive Moving Average (ARMA) model is established.The recursive extended least squares (RELS) algorithm isadopted to realize the real-time estimation of parameters.The Kalman filter is used for compensating for the modelerror of the audio ranging system.It is concluded from the simulated results that the proposed methods achieve bet-ter smoothing effects and more effective inhibitions of the audio signal random noise, and improve the precision ofthe echo range finder. |
| Key words:
algorithms
computer simulation
errors
Kalman filters
least squares approximations
mathematicalmodels
parameter estimation
range finders
time series analysis;audio ranging signal
recursive ex-tended least squares(RELS)
time series model
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| 收稿日期: 2012-04-19
修回日期:
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| DOI: |
| 基金项目: 陕西省自然科学基金(2011K06-25);西北工业大学研究生创业种子基金(Z2011067);江西省教育厅基金(GJJ10480)资助 |
| 通讯作者:
Email： |
| 作者简介: 何鹏举(1961-)，西北工业大学副教授、硕士生导师，主要从事网络化测控技术的研究。
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| 相关功能 |
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| 作者相关文章 |
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| 何鹏举 在本刊中的所有文章 |
| 秦丽丽 在本刊中的所有文章 |
| 吴琼 在本刊中的所有文章 |
| 冯亮 在本刊中的所有文章 |
| 张捷 在本刊中的所有文章 |
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