Multi-Channel Clutter Modeling, Analysis, and Suppression for Missile-borne Radar Systems
Date
2022-01-31
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE Transactions on Aerospace and Electronic Systems
Abstract
When a missile-borne radar system works in downward-looking surveillance mode, the broadened ground clutter signal in virtue of platform high-speed motion will be received by the radar receiver, which will cause difficulty in moving target detection and attacking. Unlike airborne and spaceborne platforms, a missile-borne platform exhibits some unique motion characteristics, such as diving, spinning, and coning, causing the clutter space-time distribution property significantly different from those of airborne and spaceborne radar platforms. In addition, the forward target striking requirements make the missile-borne clutter space-time spectrum further exhibit the severe range-dependent property. To deal with these issues, accurate motion modeling of a missile-borne radar platform is firstly carried out in this paper, where the complex platform motions including forward-looking diving, spinning, and coning are considered. Then, the autocorrelation processing combined with Iterative Adaptive Approach (IAA) is applied to estimate the clutter angle-Doppler center frequencies, so as to effectively realize the clutter non-stationary compensation along spatial and temporal directions. Finally, a time-domain sliding window based subspace projection (TSWSP) method is proposed to achieve the robust clutter suppression. Both simulation and real-measured radar data processing results are presented to validate the effectiveness and feasibility of the proposed algorithm.
Description
Copyright 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. This article was originally published in IEEE Transactions on Aerospace and Electronic Systems. The version of record is available at: https://doi.org/10.1109/TAES.2022.3147136
Keywords
Clutter, Spaceborne radar, Radar clutter, Spinning, Missiles, Doppler radar, Doppler effect
Citation
P. Huang, H. Yang, Z. Zou, X. -G. Xia and G. Liao, "Multi-Channel Clutter Modeling, Analysis, and Suppression for Missile-borne Radar Systems," in IEEE Transactions on Aerospace and Electronic Systems, doi: 10.1109/TAES.2022.3147136.