A Direct Path Interference Cancellation Approach to Passive Radar Based on FM Radio transmitter

Author

Jiabing, Zhu ; Liang, Tao ; Yi, Hong

Author_Institution

Inst. of Signal Process., East China Res. Inst. of Electron. Eng., Hefei

fYear

2006

fDate

7-10 May 2006

Firstpage

55

Lastpage

59

Abstract

Target detection by non-cooperative illuminator is a research hotspot in electronic warfare field, with four countering´ potential advantages. One of the major problems in bistatic radars with continuous waves is the direct path interference (DPI). The conventional solution to this problem is to use an adaptive antenna by steering null towards the interference. Unfortunately the null depth obtained by this technology is not enough for surveillance radar. First of all DPI based on FM broadcast transmitter in passive radar is analyzed in this paper. Secondly, a DPI cancellation approach based on adaptive fractional delay estimation (AFDE) is in detail introduced how to deal with this problem. Finally, a passive radar experimental system based on FM broadcast transmitter is discussed. Simulation results by applying real collected data show the provided method is effective

Keywords

frequency modulation; interference suppression; passive radar; radio transmitters; search radar; FM broadcast transmitter; FM radio transmitter; adaptive antenna; adaptive fractional delay estimation; bistatic radars; direct path interference cancellation; electronic warfare field; noncooperative illuminator; null steering; passive radar; surveillance radar; target detection; Adaptive arrays; Bistatic radar; Broadcasting; Electronic warfare; Interference cancellation; Object detection; Passive radar; Radar antennas; Radio transmitters; Surveillance;

fLanguage

English

Publisher

ieee

Conference_Titel

Electro/information Technology, 2006 IEEE International Conference on

Conference_Location

East Lansing, MI

Print_ISBN

0-7803-9592-1

Electronic_ISBN

0-7803-9593-X

Type

conf

DOI

10.1109/EIT.2006.252163

Filename

4017667