Analyzing Of Low Altitude Mimo Radarbeampattern Design
نویسندگان
چکیده
A multiple input multiple output (MIMO) radar is an emerging field which has attracted many researchers recently. In this type of radar, unlike an standard phased array radar, one can choose transmitted probing signals freely to maximize the power around the locations of the targets of interest, or more generally to approximate a given transmit beam-pattern, or to minimize the cross-correlation of the signals reflected back to the radar by the targets of interest. These signals can be correlated to each other or non-correlated. Many papers have investigated beampattern design and waveforming in MIMO radars. One of the most famous approaches for beampattern design is named covariance based method which design cross-correlation matrix of transmitted signals instead of the own signalsdirectly. Many papers have investigated the problem of MIMO radar beampattern design in an ideal operational environment. But one of the important operational situations which causes faults and errors to the radar systems is low altitude track, detection and etc. It is because of in low altitude operations beside of the desire reflected signals multipath signals will be received too. In this article it is desirable to study the effect of multipath of a MIMO radar system which is employing cross-correlation matrix of transmitted signals to designing the transmitted beampattern. MATLAB software is being employed for simulations.
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