Research on Solid Rate Filtering Technique based on Inverse Distance Weighted Interpolation of Navigation Radar
Shitan He, Tingzhuang Xing, Jie Ma · 2022 IEEE 10th Joint International Information Technology and Artificial Intelligence Conference (ITAIC) · 2022
An inverse distance weighted interpolation solid rate filtering method is proposed to plot radar images by echo data of surface X-band navigation radar. The method proposes an algorithm based on inverse distance weighted interpolation filtering according to the characteristics of the echo data, converting the original inhomogeneous 2D echo data into a radially equidistant data format, and thus plots the navigation radar images in polar coordinate system. and then realizes effective suppression of wave clutter via multi-stage DBSCAN clustering-based solid rate filtering. Finally, the single-channel grayscale map is converted into a three-channel pseudo-color map for subsequent detection of the target. The experimental results show that this algorithm has a good denoising function while maintaining the grayscale information of radar images.