Power Generation Technology ›› 2023, Vol. 44 ›› Issue (3): 399-406.DOI: 10.12096/j.2096-4528.pgt.21084
• Power Generation and Environmental Protection • Previous Articles Next Articles
Lifeng ZHANG, Jing LI, Zhi WANG
Received:
2022-01-10
Published:
2023-06-30
Online:
2023-06-30
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Lifeng ZHANG, Jing LI, Zhi WANG. Reconstruction of Temperature Distribution by Acoustic Tomography Based on Principal Component Analysis and Deep Neural Network[J]. Power Generation Technology, 2023, 44(3): 399-406.
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URL: https://www.pgtjournal.com/EN/10.12096/j.2096-4528.pgt.21084
峰型 | 训练次数 | |
---|---|---|
PCA处理后 | PCA处理前 | |
单峰 | 60 | 100 |
双峰 | 140 | 200 |
三峰 | 60 | 140 |
四峰 | 100 | 200 |
Tab. 1 Influence of PCA on DNN network training times
峰型 | 训练次数 | |
---|---|---|
PCA处理后 | PCA处理前 | |
单峰 | 60 | 100 |
双峰 | 140 | 200 |
三峰 | 60 | 140 |
四峰 | 100 | 200 |
重建算法 | 平均相对误差/% | 均方根误差/% |
---|---|---|
DNN | 0.33 | 0.47 |
Tikhonov | 0.70 | 1.50 |
共轭梯度 | 0.72 | 1.80 |
Tab. 2 Reconstruction error of single peaktemperature field
重建算法 | 平均相对误差/% | 均方根误差/% |
---|---|---|
DNN | 0.33 | 0.47 |
Tikhonov | 0.70 | 1.50 |
共轭梯度 | 0.72 | 1.80 |
重建算法 | 平均相对误差/% | 均方根误差/% |
---|---|---|
DNN | 0.36 | 0.85 |
Tikhonov | 0.62 | 0.97 |
共轭梯度 | 0.59 | 1.04 |
Tab. 3 Reconstruction error of twin-peaktemperature field
重建算法 | 平均相对误差/% | 均方根误差/% |
---|---|---|
DNN | 0.36 | 0.85 |
Tikhonov | 0.62 | 0.97 |
共轭梯度 | 0.59 | 1.04 |
重建算法 | 平均相对误差/% | 均方根误差/% |
---|---|---|
DNN | 0.31 | 0.67 |
Tikhonov | 0.62 | 0.94 |
共轭梯度 | 0.51 | 0.86 |
Tab. 4 Reconstruction error of three-peaktemperature field
重建算法 | 平均相对误差/% | 均方根误差/% |
---|---|---|
DNN | 0.31 | 0.67 |
Tikhonov | 0.62 | 0.94 |
共轭梯度 | 0.51 | 0.86 |
重建算法 | 平均相对误差/% | 均方根误差/% |
---|---|---|
DNN | 0.36 | 0.62 |
Tikhonov | 0.64 | 0.98 |
共轭梯度 | 0.50 | 0.89 |
Tab. 5 Reconstruction error of four-peaktemperature field
重建算法 | 平均相对误差/% | 均方根误差/% |
---|---|---|
DNN | 0.36 | 0.62 |
Tikhonov | 0.64 | 0.98 |
共轭梯度 | 0.50 | 0.89 |
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