The correlation of peak intensities of VanderLugt and joint transform correlators with a single object, multiple objects, and noisy environments are analyzed. The study shows that the VanderLugt correlator can generally perform better for the multiple object case and also under a noisy environment.
Francis T. S. Yu, Q. W. Song, Y. S. Cheng, and Don A. Gregory, "Comparison of detection efficiencies for VanderLugt and joint transform correlators," Appl. Opt. 29, 225-232 (1990)