Precision Improvement of Underwater Single Photon Imaging Based on Model Matching

In this letter, the Gaussian With Exponential Components (GWEC) model is proposed to simulate the Instrument Response Function (IRF) by the convolution of the conventional Gaussian and exponential models, which aims to solve the issue that the system failed to obtain IRF accurately, resulting in poor accuracy of the cross-correlation results. Meanwhile, the GWEC model takes the advantage of simplicity in parameter setting and high range accuracy after cross-correlation operation.