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基于TM数据和ANN的河流水质参数监测研究

Keywords: RSGISTMANN珠江水系水质监测

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Abstract:

以珠江水系广州河段为研究对象,联合使用遥感(RS)和人工神经网络(ANN)技术对珠江水质进行分析监测。这种技术主要是利用GIS对RS图像进行地理定位,然后利用RS专用软件提取定位点的RS数据,最后通过建立前馈误差反传人工神经网络(BP网络),确定TM数据前5个波段在定位点的反射率与水质3个主要参数的映射关系,即建立RS数据与水质的映射模型。经过检验,该技术监测误差小于16%,基本能满足当前实际需要。

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