Title :
Bounds on Elevation Error Estimates of a Target in Multipath
Author :
Trunk, G.V. ; Cantrell, B.H. ; Gordon, William B.
Author_Institution :
Code 5308 Naval Research Laboratory Washington, D.C. 20375
Abstract :
The Cramer-Rao bound for an unbiased estimate of the elevation angle of a target in the presence of multipath is calculated for the symmetric (target and image symmetric about the elevation symmetry plane of antenna) and nonsymmetric cases for an antenna consisting of 21 elements. These bounds are compared to the maximum likelihood estimates and it is found that the rms error of the maximum likelihood estimate (which has a bias) is below the Cramer-Rao bound for unbiased estimates.
Keywords :
Amplitude estimation; Cramer-Rao bounds; Gaussian noise; Maximum likelihood estimation; Mean square error methods; Parameter estimation; Radar; Reflector antennas; Signal to noise ratio; State estimation;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.1979.308774
