基于包络线法的滨海滩涂PLSR盐分模型研究

Advances in Marine Science(2014)

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Abstract
以辽河三角洲滨海湿地滩涂为研究区域,首先利用8种常用光谱变换方法和包络线法进行光谱特征分析,发现光谱数据经包络线法去包络后与盐分含量的相关性显著提高,并确定其对盐分敏感的最佳波段,利用PLSR建立敏感波段的土壤盐分反演模型.研究表明,模型由于保留了对土壤含盐量贡献大的波段,反演精度较高,同时减少了计算量.
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Key words
soil salinity,improved enveloping line method,PLSR,quantitative retrieval
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