Spectroscopy and Spectral Analysis, Volume. 40, Issue 10, 3211(2020)
Nitrate Measurement in the Ocean Based on Neural Network Model
Figures & Tables(10)
Fig. 1. Schematic diagram of the nitrate sensor
1: Light source control panel; 2: Light source; 3: Lens 1; 4: Light windows; 5: Lens 2; 6: Optical fiber; 7: Microspectrometer; 8: Control and signal processing module; 9: Interface
Fig. 6. Correlation between predicted and actual values in different models
(a): 1 hidden layer BPNN Predictive value
Table 1. Model prediction results
View tableView in ArticleTable 1. Model prediction results
Serial
numberActual Value
/(μg·L-1)1 Hidden Layer BPNN
Predictive Value/(μg·L-1)2 Hidden Layer BPNN
Predictive Value/(μg·L-1)PLS Predictive
Value/(μg·L-1)1 90.000 104.788 93.374 108.898 2 180.000 192.742 169.137 168.596 3 240.000 252.648 229.105 241.797 4 330.000 371.021 332.520 332.716 5 360.000 386.348 353.995 365.818 6 420.000 420.715 415.918 427.090 7 630.000 649.778 654.724 639.038 8 660.000 594.306 654.930 679.720
Table 2. Evaluation of the nitrate concentration by the three methods
View tableView in ArticleTable 2. Evaluation of the nitrate concentration by the three methods
Model r MAE/
(μg·L-1)MRE/% RMSEP 1h-BP 0.975 24.217 7.7 30.873 2h-BP 0.997 8.442 2.8 10.864 PLS 0.997 9.560 4.6 11.470
Tools
Get Citation
Copy Citation Text
Yao-bin HOU, Wei-wei FENG, Zong-qi CAI, Huan-qing WANG, Zeng-dong LIU. Nitrate Measurement in the Ocean Based on Neural Network Model[J]. Spectroscopy and Spectral Analysis, 2020, 40(10): 3211
Paper Information
Category: Research Articles
Received: Sep. 6, 2019
Accepted: --
Published Online: Jun. 18, 2021
The Author Email: HOU Yao-bin (ybhou@yic.ac.cn)
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20