Title :
Angle of arrival measurement using wideband linear phased array
Author :
Liou, L.L. ; Lin, D.M. ; Tsui, J.T. ; Buck, J. ; Longbrake, M. ; McCann, J. ; Buxa, P. ; Dalrymple, T.
Author_Institution :
Air Force Res. Lab., RYDR, Wright-Patterson AFB, OH, USA
Abstract :
A radio frequency (RF) signal detection algorithm is developed based on two- dimensional fast Fourier transform (FFT) on phased array time series data. The sensitivity is calculated based on two-frame signal detection criterion. A collection system consisting of a linear phased array and multiple wideband digital receivers is utilized. Simulation results are presented based on the system parameters of the channelization frequency plan including the frequency range, LO, mixer, and sampling frequency. Experimental angle of arrival data are processed, and the results are shown to be in good agreement with the simulation results.
Keywords :
direction-of-arrival estimation; fast Fourier transforms; phased array radar; signal detection; time series; angle-of-arrival measurement; channelization frequency plan; collection system; fast Fourier transform; mixer; phased array time series data; radiofrequency signal detection algorithm; sampling frequency; wideband digital receivers; wideband linear phased array; Antenna arrays; Antenna measurements; Goniometers; Phase measurement; Phased arrays; Radio frequency; Receiving antennas; Sensor arrays; Signal detection; Wideband;
Conference_Titel :
Aerospace & Electronics Conference (NAECON), Proceedings of the IEEE 2009 National
Conference_Location :
Dayton, OH
Print_ISBN :
978-1-4244-4494-6
Electronic_ISBN :
978-1-4244-4495-3
DOI :
10.1109/NAECON.2009.5426635
