Title :
Co-channel interference suppression for homo-type radars based on joint time domain and fractional Fourier domain
Author :
Cheng Chang ; Hao Huan ; Shaobo Yuan ; Xiaopeng Yang
Author_Institution :
Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China
Abstract :
In this paper, to solve the problem of co-channel interference caused by homo-type radars working in ship formation, an interference suppression method based on joint fractional Fourier domain and time domain is proposed. The interference with different modulated frequency rates from echo signal can be eliminated at fractional Fourier domain and the ones with similar modulated frequency rate can be cancelled at time domain. Computer simulation results show that interference suppression processing gain reaches 29dB. This method can present technical support for the electromagnetic compatibility (EMC) research in the ship formation.
Keywords :
Fourier transforms; cochannel interference; echo; electromagnetic compatibility; interference suppression; marine radar; recursive filters; ships; cochannel interference suppression; echo signal; electromagnetic compatibility; fractional Fourier domain; homo-type radars; joint time domain; ship formation; Chirp; Interchannel interference; Interference suppression; Radar; Signal to noise ratio; Time-domain analysis;
Conference_Titel :
Electromagnetics in Advanced Applications (ICEAA), 2014 International Conference on
Conference_Location :
Palm Beach
Print_ISBN :
978-1-4799-7325-5
DOI :
10.1109/ICEAA.2014.6903984
