DocumentCode :
2871537
Title :
Hybrid phase amplitude direction finding method
Author :
Orduyilmaz, Adnan ; Serin, Mahmut ; Yildirim, Alper ; Ceyhan, Kivanc ; Gurbuz, Ali Cafer
Author_Institution :
Tubitak Bilgem Iltaren, Ankara, Turkey
fYear :
2015
fDate :
16-19 May 2015
Firstpage :
109
Lastpage :
112
Abstract :
In this paper, hybrid monopulse phase-amplitude comparison method is presented. Design has been realized for broadband radar signals in real time in the digital environment. Multi-antenna array is used with a wide antenna pattern disposed on a plane in direction finding (DF) techniques with a traditional phase comparison method. With recommended method in the article, integrated amplitude and phase comparison method with fractured antennas´ placements is used for solution of ambiguity. It is too hard to determine phase differences by using amplitude differences coming from fractured antennas´s placements. This challenge is resolved by using FFT. For a particular incidence angle sector, analysis are performed with different antennas´ placement scenarios and different signal to noise ratio (SNR). Successful DF estimations are accomplished with recommended fractured, two antenna structure and hybrid phase-amplitude technique.
Keywords :
broadband antennas; fast Fourier transforms; radio direction-finding; DF estimations; FFT; SNR; broadband radar signals; digital environment; direction finding techniques; fractured antennas placements; hybrid monopulse phase-amplitude comparison method; hybrid phase amplitude direction finding method; incidence angle sector; integrated amplitude method; multi-antenna array; phase comparison method; phase differences; signal to noise ratio; wide antenna pattern; Antennas; Field programmable gate arrays; Maximum likelihood estimation; Passive radar; Radar tracking; Signal to noise ratio; amplitude comparison; direction finding; interferometer; phase difference;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing and Communications Applications Conference (SIU), 2015 23th
Conference_Location :
Malatya
Type :
conf
DOI :
10.1109/SIU.2015.7130142
Filename :
7130142
Link To Document :
بازگشت