Micro-motion analysis based on HRRP sequence

Author

Chen Da-qing ; Xie Su-dao ; Wang Rong-chen ; Zhang Zhe

Author_Institution

Taiyuan Satellite Launch Center, Taiyuan, China

fYear

2013

fDate

14-16 April 2013

Firstpage

1

Lastpage

5

Abstract

Since micro-motion of a target will affect the positions and phases of scatters in high resolution range profiler (HRRP), the methods of micro-motion extraction from the signals of range gates cannot be used. According to the variation features of scatter position, we treat the HRRPs as image sequence and an improved Viterbi algorithm is used to track and isolate the range-gate histories of scatters. Then the time-frequency transform and spectral analysis methods are performed to analyze the micro-motion characteristics of each scatter. The proposed algorithm is verified via simulation data and its performance under noisy environment is analyzed.

Keywords

military radar; spectral analysis; target tracking; time-frequency analysis; HRRP sequence; Viterbi algorithm; high resolution range profiler; image sequence; micromotion analysis; micromotion characteristics; micromotion extraction; noisy environment; range gates; range-gate histories; scatter position; spectral analysis methods; time-frequency transform; variation features; Viterbi; high resolution range profiler; micro motion; time-frequency transform;

fLanguage

English

Publisher

iet

Conference_Titel

Radar Conference 2013, IET International

Conference_Location

Xi´an

Electronic_ISBN

978-1-84919-603-1

Type

conf

DOI

10.1049/cp.2013.0489

Filename

6624653