GRADIENT DESCENT-BASED POWER ALLOCATION AND RECEIVERS’ POSITIONING IN MIMO RADARS

Document Type: Research Paper

10.22099/ijste.2014.2568

Abstract

In MIMO (Multiple Input Multiple Output) radar systems multiple antennas at
transmit and receive sides are used to improve the detection performance. Two important
parameters which have an effect on the coverage and performance of these systems are: the
transmitters’ power and the receivers’ positions. In this paper, assuming the Rayleigh scatter
model for the target, the probability of detection is obtained for a MIMO radar system, by
designing the Neyman-Pearson detector. Then, an iterative procedure is proposed for
appropriate positioning of the receive antennas’, such that this probability of detection is
improved. Finally, the transmitters’ powers are determined based on the gradient descent
algorithm.

Keywords