Title
A Stochastic CRB for Non-unitary Beam-space Transformations and its Application to Optimal Steering Angle Design
Abstract
Many of modern radar systems employ antenna arrays with thousands of anetnnas. These antennas are usually grouped into a few subarrays or beams through the process of beamspace transformation, to estimate the angle of a target. In this letter, we consider a simple but pragmatic beamspace transformation that only allows beam steering, and present a technique of finding optimal steering angles that minimize the Cramér-Rao bound (CRB) for angle estimation. The CRB and mean squared error (MSE) of the angle estimate using the resulting optimal steering angles are compared with those using the widely used DFT-based beam steering.
Year
DOI
Venue
2015
10.1109/LSP.2015.2453152
IEEE Signal Processing Letters
Keywords
Field
DocType
Beamspace transformation, correlated noise, cramer-rao bound, DFT beams, subarray formation
Steering angle,Mathematical optimization,Telecommunications,Noise measurement,Algorithm,Beam steering,Radar systems,Mean squared error,Unitary state,Beam (structure),Radar antennas,Mathematics
Journal
Volume
Issue
ISSN
22
11
1070-9908
Citations 
PageRank 
References 
0
0.34
7
Authors
4
Name
Order
Citations
PageRank
Sanghyouk Choi101.35
Joohwan Chun239635.12
inchan paek300.68
Jonghun Jang400.34