A reconfigurable intelligent surface (RIS) is a nearly-passive flat layer made of inexpensive elements that can add tunable phase shift to the impinging electromagnetic wave and are controlled by low-power electronic circuit. This paper considers fundamental problem target detection in RIS-aided multiple-input multiple-output (MIMO) radar. At first, general signal model introduced, which includ...

The feasibility of using GPS as a bistatic radar illuminator for the purposes of air target detection is examined. The power budget analysis is first performed assuming the use of a single satellite, but is followed by a discussion of the expected improvements when multiple satellites are employed. The analysis includes the effect of GPS signal strength dynamic range, also known as the ‘near-fa...

Bistatic SAR uses separated transmitter and receiver flying on different platforms. This configuration is envisaged to achieve benefits like the exploitation of additional information contained in the bistatic reflectivity of targets, reduced vulnerability in military systems or forward looking SAR imaging. The feasibility of the bistatic concept was already demonstrated by experimental investi...

In this paper, we investigate the exploitation of the polarimetric diversity signal properties in a bistatic polarimetric MIMO radar to improve the performance of joint estimation of direction of arrival (DOA) and direction of departure (DOD) of targets using combined ESPRIT-RootMUSIC technique. Numerical simulations are carried out to illustrate the performance of the proposed approach.

In this paper we introduce different multi-frequency approaches for improving target detection performance in FM radio based Passive Bistatic Radar (PBR). Specifically, we consider the high diversity of the FM radio signals received over different carrier frequencies spanning the 88÷108MHz band since it represents the basis for the request of a multi-frequency operation. The joint exploitation ...

Device-Free localization is a promising technique for indoor positioning in infrastructures, as it eliminates the reliance on custom and costly hardware. In this study, we present development of compact cost-effective bistatic radar sensor that utilizes DW3000 UWB transceivers. The effectiveness was evaluated through comprehensive assessments various channels, with particular emphasis channel 9...

GPS bistatic signals have applications for remote sensing in collecting data such as soil moisture content, surface altitude or wave speed. Prior research using these signals has been limited by the low signal power of the bistatic GPS signals. Leveraging off of a previous effort that used a 15-element array, NAVSYS Corporation has developed an advanced bistatic GPS receiver that uses a 109-ele...

The traditional second order statistics approach of using only the hermitian covariance for non circular signals, does not take advantage of the information contained in the complementary covariance of these signals. Radar systems often use non circular signals such as Binary Phase Shift Keying (BPSK) signals. Their noncicular property can be exploited together with the dual centrosymmetry of t...