Wavefront Distortion Restoration Method Based on Residual Attention Network

Table 1. Parameter of simulation
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Table 1. Parameter of simulation
Parameter Value
Laser wavelength $λ$ 1 550 nm
Width of phase screen $D$ 0.3 m
Beam waist $w_{0}$ 3 cm
Topological charge l 3
Radial index p 0
Transmission distance z 1 km
Number of phase screens 10

Table 2. PV and RMS values of the residual phase at different turbulence intensities

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Table 2. PV and RMS values of the residual phase at different turbulence intensities

	$D / r_{0} = 2$		$D / r_{0} = 5$		$D / r_{0} = 10$		$D / r_{0} = 15$		$D / r_{0} = 20$
	Ours	Ref.［12］	Ours	Ref.［12］	Ours	Ref.［12］	Ours	Ref.［12］	Ours	Ref.［12］
PV/rad	0.045	0.082	0.195	0.214	0.226	0.415	0.196	0.439	0.275	0.381
RMS/rad	0.011	0.024	0.032	0.081	0.046	0.169	0.053	0.225	0.071	0.315

Table 3. PV and RMS values of the residual phase at different SNR

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Table 3. PV and RMS values of the residual phase at different SNR

SNR	$D / r_{0} = 2$		$D / r_{0} = 5$		$D / r_{0} = 10$		$D / r_{0} = 15$		$D / r_{0} = 20$
	PV/rad	RMS/rad	PV/rad	RMS/rad	PV/rad	RMS/rad	PV/rad	RMS/rad	PV/rad	RMS/rad
5 dB	0.131	0.023	0.178	0.051	0.481	0.133	0.731	0.152	0.624	0.129
15 dB	0.051	0.011	0.135	0.030	0.244	0.106	0.391	0.125	0.342	0.095
25 dB	0.031	0.006	0.105	0.015	0.138	0.069	0.138	0.118	0.121	0.071

Table 4. Comparison of accuracy and calculation time of different models
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Table 4. Comparison of accuracy and calculation time of different models
Model Accuracy Time/ms
ResNet50 0.892 8.35
ResNet50+SA 0.934 9.07
ResNet50+CA 0.941 9.44
ResNet50+CA+SA 0.971 9.51

Table 5. Comparison of evaluation indexes of removing partial attention mechanism
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Table 5. Comparison of evaluation indexes of removing partial attention mechanism
Complete model Remove CA Remove SA
PV/rad 0.145 1 0.258 9 0.373
RMS/rad 0.052 7 0.077 1 0.088 1

Table 6. Comparison of evaluation indexes of partial loss function
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Table 6. Comparison of evaluation indexes of partial loss function
Complete model Remove PV Remove RMS
PV/rad 0.164 9 0.354 6 0.274 7
RMS/rad 0.039 5 0.070 8 0.080 9

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Yang CAO, Zupeng ZHANG, Xiaofeng PENG. Wavefront Distortion Restoration Method Based on Residual Attention Network[J]. Acta Photonica Sinica, 2022, 51(12): 1206002

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