Title :
A novel method for recognition of point sources [antenna arrays]
Author :
Lei, Tianhu ; Dorny, C. Nelson
Author_Institution :
Dept. of Syst., Pennsylvania Univ., Philadelphia, PA, USA
fDate :
9/1/1988 12:00:00 AM
Abstract :
Some calibration and focusing techniques for antenna arrays assume availability of point sources that radiate spherical wave fronts in free space. In practice, point sources and free-space propagation can only be approximated. Descriptions are given of technique and a decision criterion that provide a means for testing the radiation or reflection from a source to see if it acts sufficiently like a point source to permit accurate array focusing. The physical meaning of this procedure is described, and the proposed approach is demonstrated by simulation examples
Keywords :
antenna arrays; calibration; focusing; antenna arrays; calibration; focusing techniques; free-space propagation; point sources; spherical wave fronts; Amplitude estimation; Antenna arrays; Antennas and propagation; Calibration; Gaussian noise; Narrowband; Reflection; Signal to noise ratio; Testing; Working environment noise;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
