| 基于正交多项式作最小二乘曲线拟合的水位流量率定系统设计与实现 |
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| 引用本文： | 刘晓艳,芮雪,刘小勇.基于正交多项式作最小二乘曲线拟合的水位流量率定系统设计与实现[J].新疆农业大学学报,2009,32(3):86-90. |
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| 作者姓名： | 刘晓艳 芮雪 刘小勇 |
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| 作者单位： | 1. 新疆农业大学,机械交通学院,乌鲁木齐,830052
2. 新疆教育学院,计算机教研室,乌鲁木齐,830034 |
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| 基金项目： | 国家科技部农业科技成果转化资金项目 |
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| 摘 要： | 为了提高灌区水资源管理水平，在“河渠电子数字水位流量计”水位流量率定系统中，通过对水位流量率定曲线的研究，利用加权正交多项式作最小二乘曲线拟合的算法，设计出了能较好反应水位流量关系的曲线，并可根据需要对曲线进行调整、拖拽。该系统以电子水尺读取水位为基础数据，通过率定的曲线生成水位流量对照表，计算出瞬时水量、累计水量，生成日报表、月报表，同时可对任意渠道的用水情况进行查询，方便水文工作者及时作出决策，合理进行水资源的配置。
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| 关 键 词： | 正交多项式 最小二乘 曲线拟合 水位流量率定 |
Design and Realization of Stage-Discharge Relation System Based on Least Square Curve-fitting of Orthogonal Polynomials |
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| LIU Xiao-yan,Rui Xue,LIU Xiao-yong.Design and Realization of Stage-Discharge Relation System Based on Least Square Curve-fitting of Orthogonal Polynomials[J].Journal of Xinjiang Agricultural University,2009,32(3):86-90. |
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| Authors: | LIU Xiao-yan Rui Xue LIU Xiao-yong |
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| Institution: | LIU Xiao-yan , Rui Xue, LIU Xiao-yong (1. College of Mechanical Engineering ＆ Communication, Xinjiang Agricultural University, Urumqi 830052,China; 2. Computer Teaching and Research Section, Xinjiang Education Institute, Urumqi 830034, China) |
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| Abstract: | This study was carried out to reveal the stage-discharge relation curve in stage-discharge relation system attached to ＂electronic and digital stage-discharge flowmeter to canal＂ to improve the management level of water resources in irrigation area. The good stage-discharge relation curve was designed by use of least square curve-fitting of orthogonal polynomials method. In addition, the curve can be adjusted and dragged in accordance with practical application. The electronic and digital flowmeter has been read as the basic stage data. This system can generate stage-discharge table by stage-discharge relation curve, calculate instant water consumption,cumulative water consumption,produce day report,month report etc and query the water situation of canal . In addition,the system helps the hydrology workers dispose the water resources reasonably,use the water resources efficiently. |
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| Keywords: | orthogonal polynomials least square curve-fitting stage-discharge relation |
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