A Ship ISAR Imaging Algorithm Based on MPT-MDPT

The ship target is the focus of attention in marine monitoring activities. Due to the non-cooperative characteristic of the target, it is difficult to directly obtain the target's rotation information, so it is necessary to estimate the frequency modulation rate from the target echo. Aiming at...

Full description

Saved in:

Bibliographic Details
Published in:	2021 2nd China International SAR Symposium (CISS) pp. 1 - 5
Main Authors:	Tao, Songbo, Zeng, Yugui, Li, Miaoyu, Wang, Yingwei, Liang, Yi
Format:	Conference Proceeding
Language:	English
Published:	SISE 03-11-2021
Subjects:	Estimation Frequency modulation frequency modulation rate estimation Imaging Interference Inverse synthetic aperture radar (ISAR) imaging main peak tracking multiple delay discrete polynomial phase transform (MDPT) Radar tracking Target tracking Transforms
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	The ship target is the focus of attention in marine monitoring activities. Due to the non-cooperative characteristic of the target, it is difficult to directly obtain the target's rotation information, so it is necessary to estimate the frequency modulation rate from the target echo. Aiming at the problem that the traditional frequency modulation rate estimation algorithm requires traversal search and the calculation is large, an ISAR ship target imaging method based on main peak tracking-multiple delay discrete polynomial phase transform (MPT-MDPT) is proposed. First, perform multi-delay discrete polynomial phase transformation on the echo data after motion compensation, and then use the main peak tracking technology to determine the corresponding main peak position under different delays to eliminate the interference of pseudo peaks, and finally calculate the frequency modulation rate according to the main peak position, which greatly reduces the amount of calculation for frequency modulation rate estimation. The simulation data processing results verify the effectiveness of the proposed algorithm.
DOI:	10.23919/CISS51089.2021.9652223