Spatial polarimetric time-frequency distributions and applications to direction-of-arrival estimation

2003 ◽  
Author(s):  
Yimin Zhang ◽  
Moeness G. Amin ◽  
Baha A. Obeidat
Keyword(s):  
Direction Of Arrival ◽  
Direction Of Arrival Estimation ◽  
Frequency Distributions ◽  
Time Frequency

scholarly journals An Efficient Direction of Arrival Estimation Algorithm for Sources with Intersecting Signature in the Time–Frequency Domain

2021 ◽  
Vol 11 (4) ◽  
pp. 1849 ◽  
Author(s):  
Nabeel Ali Khan ◽  
Sadiq Ali ◽  
Kwonhue Choi
Keyword(s):  
Frequency Domain ◽  
Instantaneous Frequency ◽  
Estimation Method ◽  
Direction Of Arrival ◽  
Estimation Algorithm ◽  
Direction Of Arrival Estimation ◽  
Localization Accuracy ◽  
Time Frequency ◽  
Multiple Sensors ◽  
Sensors Array

An efficient direction of arrival estimation method is proposed. The proposed algorithm accurately estimates the instantaneous frequency of signals received by multiple sensors (array of sensors/antennas). The estimated instantaneous frequency is then used to separate sources and estimate their direction of arrivals. Experimental results indicate that the proposed method achieves better performance than the existing methods both in terms of computational requirements and localization accuracy. It is also shown that the proposed method can work in under-determined situations.

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