Range Sidelobe Iterative Suppression Algorithm for Extended Target with Non-Grid Multiple Scattering Points

This paper concentrates on extended targets to suppress high sidelobes in non-grid multiple scattering points. Notice that the problem essentially resolves the high sidelobes of the non-grid multiple scatterers after locating positions; we proposed a novel iterative algorithm based on an adaptive pu...

Full description

Saved in:
Bibliographic Details
Published in:Remote sensing (Basel, Switzerland) Switzerland), 2023-10, Vol.15 (19), p.4811
Main Authors: Xu, Jing, Zhang, Yanan, Zhang, Jindong, Chen, Jiarui
Format: Article
Language:English
Subjects:
Adaptive algorithms
Algorithms
Analysis
improved MUSIC algorithm
Iterative algorithms
Iterative methods
iterative suppression
minimum mean square error
Multiple scatter
Music
non-grid multiple scattering points
Offsets
Optimization models
Pulse compression
range sidelobe
Sidelobe reduction
Sidelobes
Signal processing
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper concentrates on extended targets to suppress high sidelobes in non-grid multiple scattering points. Notice that the problem essentially resolves the high sidelobes of the non-grid multiple scatterers after locating positions; we proposed a novel iterative algorithm based on an adaptive pulse compression algorithm on the basis of an off-grid position estimation. First, the grid offsets of the multiple scattering points through decoherence and super-resolution techniques are estimated by employing an enhanced MUSIC algorithm. Then, an optimization model is constructed for the non-grid multiple scattering points of the target. Finally, a sidelobe suppression algorithm based on the minimum mean square error (MMSE) criterion is presented. Numerical results reveal that the proposed algorithm can achieve better estimation performance on the offsets of the non-grid multiple scattering points, while it suppresses range sidelobes effectively.
ISSN:2072-4292
2072-4292
DOI:10.3390/rs15194811