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Receiver Placement in Passive MIMO Radar Systems
, M.Sc. Thesis Sharif University of Technology ; Nayebi, Mohammad Mahdi (Supervisor) ; Behnia, Fereidoon (Supervisor)
Abstract
There are a wide variety of radar systems that one of them is MIMO Radars. After a spark in communication in 1998 that developed MIMO communication, recently there has been a great attention towards MIMO radar systems. Researchers have studied this topic from several points of view. Generally, MIMO radar systems are divided into two categories: MIMO radars widely separated antennas and MIMO radars with collocated antennas. One of the important issues of widely separated MIMO radars, is the placement manner of receivers in the geometrical area. This radar’s performance is very dependent to placement of the antennas, because the performance is dependent to relative position of...
Optimum Detector and Power Allocation of MIMO Radar Systems
, M.Sc. Thesis Sharif University of Technology ; Nayebi, Mohammad Mehdi (Supervisor) ; Behnia, Fereidoon (Co-Advisor)
Abstract
MIMO (Multi Input Multi Output) Radars issue is a new topic in Radar systems field and power allocation in these systems is very important to improve their performance.In this thesis, at first, two optimum detectors for MIMO radars with widely separated antennas are designed. In the first one, received signal in all receivers is gathered in a central processor and centralized detection is performed. This type of detection needs too much process power and is complex. Because of complexity of detector, probability of detection is very difficult to derive and deflection criterion is used for evaluating system performance. In the second one, each receiver processes received signals from all...
Detector Design for MIMO Radars with Widely Separated Antennas
, Ph.D. Dissertation Sharif University of Technology ; Nayebi, Mohammad Mehdi (Supervisor)
Abstract
The use of multiple-input multiple-output (MIMO) radar to overcome traditional radar weaknesses has received much attention in recent studies.For example, the detection of targets with low radar cross section (RCS) level is still very difficult since the target can be seen only from one side. MIMO radars by diversity of locations or waveforms solve this problem. One of the fundamental problems in the design of MIMO radars is optimal detectors.This problem has been investigated in recent years under various assumptions. We studied this subject under some assumptions such as single point target, Swerling scattering models for radar cross section and Gaussian interference.In this paper we...