Table 2: Reconstruction performance of different interpolation methods on time reversal algorithm (15% noise).

Time reversal methodMSE (30)PSNR (30)TIME (30)/sMSE (50)PSNR (50)TIME (50)/s

Conventional0.32301.700000.19133.97490
Linear interpolation0.13845.38130.10940.05229.61850.1090
Cubic convolution interpolation0.13365.53240.01010.05119.70490.0105
Cubic spline interpolation0.12365.86950.01210.04989.81940.0123
PSO optimized SVM interpolation0.07767.87750.49780.025512.78330.4979