scholarly journals NOVEL BLIND JOINT DIRECTION OF ARRIVAL AND POLARIZATION ESTIMATION FOR POLARIZATION-SENSITIVE UNIFORM CIRCULAR ARRAY

2008 ◽  
Vol 86 ◽  
pp. 19-37 ◽  
Author(s):  
Xiaofei Zhang ◽  
Ying Shi ◽  
Dazhuan Xu
Keyword(s):  
Direction Of Arrival ◽  
Circular Array ◽  
Joint Direction ◽  
Polarization Estimation

Circular array and estimation of direction of arrival of a broadband source

1994 ◽  
Vol 37 (2) ◽  
pp. 243-254 ◽  
Author(s):  
C. Usha Padmini ◽  
Prabhakar S. Naidu
Keyword(s):  
Direction Of Arrival ◽  
Circular Array

scholarly journals Direction of Arrival and Polarization Estimation for Nested Polarization Sensitive Array

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 156917-156928
Author(s):  
Yunlong Yang ◽  
Yuguan Hou ◽  
Xingpeng Mao ◽  
Guojun Jiang
Keyword(s):  
Direction Of Arrival ◽  
Polarization Sensitive Array ◽  
Polarization Estimation

scholarly journals Direction of Arrival Estimation of GPS Narrowband Jammers Using High-Resolution Techniques

Sensors ◽  
2019 ◽  
Vol 19 (24) ◽  
pp. 5532 ◽  
Author(s):  
Mohamed Moussa ◽  
Abdalla Osman ◽  
Mohamed Tamazin ◽  
Michael J. Korenberg ◽  
Aboelmagd Noureldin
Keyword(s):  
Linear Array ◽  
Classical Method ◽  
Spatial Separation ◽  
Direction Of Arrival ◽  
Doa Estimation ◽  
Circular Array ◽  
Gps Receivers ◽  
Fast Orthogonal Search ◽  
Jamming Detection ◽  
Ultimate Objective

GPS jamming is a considerable threat to applications that rely on GPS position, velocity, and time. Jamming detection is the first step in the mitigation process. The direction of arrival (DOA) estimation of jamming signals is affected by resolution. In the presence of multiple jamming sources whose spatial separation is very narrow, an incorrect number of jammers can be detected. Consequently, mitigation will be affected. The ultimate objective of this research is to enhance GPS receivers’ anti-jamming abilities. This research proposes an enhancement to the anti-jamming detection ability of GPS receivers that are equipped with a uniform linear array (ULA) and uniform circular array (UCA). The proposed array processing method utilizes fast orthogonal search (FOS) to target the accurate detection of the DOA of both single and multiple in-band CW jammers. Its performance is compared to the classical method and MUSIC. GPS signals obtained from a Spirent GSS6700 simulator and CW jamming signals were used. The proposed method produces a threefold advantage, higher accuracy DOA estimates, amplitudes, and a correct number of jammers. Therefore, the anti-jamming process can be significantly improved by limiting the erroneous spatial attenuation of GPS signals arriving from an angle close to the jammer.

Joint DOA-polarization estimation based on uniform concentric circular array

2013 ◽  
Vol 27 (13) ◽  
pp. 1702-1714 ◽  
Author(s):  
Lanmei Wang ◽  
Guibao Wang ◽  
Zhihai Chen
Keyword(s):  
Circular Array ◽  
Polarization Estimation
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