Chen Sun, Yu-Tao Feng, Di Fu, Ya-Fei Zhang, Juan Li, Xue-Bin Liu. A propagation of interferogram signal-to-noise (SNR) and phase uncertainty in Doppler asymmetric spatial heterodyne spectrometer [J]. Acta Physica Sinica, 2020, 69(1): 014202-1
- Acta Physica Sinica
- Vol. 69, Issue 1, 014202-1 (2020)
Fig. 1. Schematic of the Doppler asymmetric spatial heterodyne interferometer.多普勒差分干涉仪原理图
Fig. 2. Flow chart of phase retrieval method.相位反演模型流程图
Fig. 3. Simulation results of retrieved phase uncertainty and residual with different SNR: (a) Phase uncertainty of two models; (b) the differences between two results.信噪比与相位不确定度仿真结果及残差 (a)为相位反演模型与理论模型计算的相位不确定度; (b)为两种计算结果残差
Fig. 4. Photograph of laboratory setup.实验平台
Fig. 5. Interferogram.原始干涉图
Fig. 6. Experimental results of retrieved phase uncertainty and residual with same attenuation coefficient and different integration time: (a) Phase uncertainty of two models; (b) the differences between two results.变积分时间实测数据计算结果及残差 (a)为相位反演模型与理论模型计算的相位不确定度; (b)为两种计算结果残差
Fig. 7. Experimental results of retrieved phase uncertainty and residual with different attenuation coefficients: (a) Phase uncertainty of two models; (b) the differences between two results变衰减片实测数据计算结果及残差 (a)为相位反演模型与理论模型计算的相位不确定度; (b)为两种计算结果残差
Fig. 8. Comparison and analysis of measured and simulated data with the same SNR.相同信噪比实测数据与仿真数据对比分析
Fig. 9. SNR of 1.5 s integration time interferograms积分时间1.5 s实测干涉图信噪比
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Table 1. Principle components.
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