Technical Background and Principles for the Examples of MIMO Radar System

Burhan Davarcioglu

Abstract


This paper establishes the classical linear model of signal
of the multiple-input multiple-output (MIMO) radar system with
distributed apertures, the problem of radar waveform design for
target identification and classification. Both the ordinary radar with
a single transmitter and receiver and the recently proposed MIMO
radar are considered. Most radar systems operate by radiating a
specific electromagnetic signal into a region and detecting the echo
returned from the reflecting targets. A random target impulse
response is used to model the scattering characteristics of the
extended (nonpoint) target, and two radar waveform design
problems with constraints on waveform power have been
investigated. The first one is to design waveforms that maximize the
conditional mutual information between the random target impulse
response and the reflected waveforms given the knowledge of
transmitted waveforms. The second one is to find transmitted
waveforms that minimize the mean square error in estimating the
target impulse response. MIMO radar has the potential to
significantly enhance the flexibility and performance of radar
technology.

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