Table 1 PSO-OMP algorithm steps.
From: Time frequency analysis of elastic wave PSO OMP for defects in flat steel of down conductors
1 | Initialization: Initialize the particle swarm, defining the search space for the dictionary parameters. |
2 | PSO Optimization: Optimize the parameters of the dictionary atoms using PSO, aiming to minimize the fitness function (signal residual). |
3 | OMP Reconstruction: After each PSO optimization, use OMP to select the optimal atoms from the dictionary to gradually reconstruct the signal. |
4 | Iterative Update: Repeat the PSO and OMP iterations until the stopping criteria are met, such as a sufficiently small residual or the predefined number of iterations. |
