Application
of Adaptive Arrays to Atmospheric Remote Sensing
Speaker: Hui Tong
Time: Thursday 1:
Place: EERC 226
Abstract:
The
Turbulent Eddy Profiler (TEP) is a volume imaging 915~MHz radar, designed for
high-resolution observations of the boundary layer. This unique radar was designed
and built with 61 independent receivers allowing the implementation of
sophisticated beamforming/imaging algorithms.
Using this important capability, estimation of three-dimensional maps of
echo power, radial velocity and spectrum width are possible within a 25 degree
cone above the radar. Radial velocity maps can be exploited to generate
estimates of the three-dimensional wind field. Experimental results are
presented from the so-called pulse-pair beamforming method which is an
efficient algorithm for generating the spectral moments from an imaging radar.
The algorithms used for these estimation problems will be discussed along with
numerous interesting case studies of boundary layer structure and dynamics.
References:
· B. D. Van Veen, K. M. Buckley, “Beamforming: A Versatile Approach to Spatial Filtering,” IEEE ASSP Magazine, April 1988.