Target localization in distributed MIMO radar
King Fahd University of
Petroleum and Minerals
Tuesday, January 19, 2010
1:00 p.m. – 2:00 p.m.
Building 59 Room 2002
Multiple-Input Multiple-Output (MIMO) radar concept is
based on a set of widely separated transmit and
receive radars having the ability to jointly process the
received signals. For most applications, time
synchronization among radars is a sufficient requirement.
These are classified as non-coherent systems. High
resolution target location estimation is based on
phase synchronization among radars and is defined as
coherent processing. The lower bound on target
localization error was derived by use of the
Cramér-Rao Lower Bound (CRLB) on
target localization accuracy for coherent MIMO radar
systems. The spatial advantage is found to be proportional
to MN where M is the number of transmit radars
and N is the number of receive radars. The coherence
advantage is proportional to fc/B
where fc is
the signal carrier frequency and B is the bandwidth.
In low SNR, the estimation capabilities are predominated by
Thinned and randomized nature of elements in the MIMO radar
results in the ability to break the grating lobes and leads
to the reduction of peak side lobe level proportional
MN. In this seminar, we also discuss the possibility to
trade-off bandwidth to the number of radar elements by the
use of multi-carrier signals.