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SPECTROSCOPY AND SPECTRAL ANALYSIS  2018, Vol. 38 Issue (02): 564-569    DOI: 10.3964/j.issn.1000-0593(2018)02-0564-06
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A Model on Extracting the Pollution Information of Heavy Metal Copper Ion Based on the Soil Spectra Analyzed by HHT in Time-Frequency
YANG Ke-ming1, WANG Guo-ping1,2, FU Ping-jie1, ZHANG Wei1, WANG Xiao-feng1
1. College of Geoscience and Surveying Engineering, China University of Mining & Technology (Beijing), Beijing 100083,China
2. Beijing PIESAT Information Technology Co., Ltd., Beijing 100195, China