Numerical simulation and analysis of free-surface wake generated by moving submerged target

The detection method of sidelobe peaks parameter in weak signal regions based on NVPCA image enhancement

“…In 2023, WANG Zhengzhou et al proposed a far-field measurement method for detecting sidelobe peak parameters based on sidelobe beam diffraction inversion [4]. Due to the characteristic of multiple circular rings with alternating peaks and valleys in the weak signal area of the sidelobe [5], this method takes angle as the independent variable and detects the peak parameters of the one-dimensional sidelobe distribution curve at each angle in all directions at 360 degrees under pre-selected angle sampling intervals, realize the detection of the peak parameters of the entire sidelobe image.…”