Cochannel Interference Suppression for Ship-Based Passive Synthetic Impulse and Aperture Radar

Author

Ya-bin, ZHANG ; Chen Bai-xiao ; Shou-hong, Zhang ; Hai-yan, SHANG

Author_Institution

Nat. Lab. of Radar Signal Process., Xidian Univ., Xi´´an

fYear

2006

fDate

16-19 Oct. 2006

Firstpage

1

Lastpage

4

Abstract

Power distribution and correlation characteristic of cochannel interference are analyzed in ship-based passive synthetic impulse and aperture radar (SIAR) scenario. Characteristic of interference at interested range bin is estimated accurately using echoes from some positive and all negative frequency range bins after stretching with cosine weight. Thereafter, Karhunen-Loeve transformation is used to the echo from interested range bin and interference is suppressed provided that its power is stronger than radar echoes. Theoretical analysis and suppression procedure presented are confirmed by real data acquired in year 2005

Keywords

cochannel interference; echo; passive radar; ships; synthetic aperture radar; Karhunen-Loeve transformation; cochannel interference suppression; correlation characteristic; echo; ship-based passive SIAR; synthetic impulse-aperture radar; Array signal processing; Echo interference; Frequency; Interchannel interference; Interference suppression; Passive radar; Radar antennas; Receiving antennas; Synthetic aperture radar; Transmitting antennas; Cochannel interference suppression; Covariance matrix; Ship-based Passive SIAR;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar, 2006. CIE '06. International Conference on

Conference_Location

Shanghai

Print_ISBN

0-7803-9582-4

Electronic_ISBN

0-7803-9583-2

Type

conf

DOI

10.1109/ICR.2006.343408

Filename

4148445