The signal processing in the bistatic SAR case is more complex than the monostatic synthetic aperture radar (SAR) case due to issues such as the range history of the target echo signal, time synchronization error, time-varying Doppler rate because of squint, etc. In this paper, a monostatic equivalent geometry model of bistatic SAR is established; the mechanism of the System time synchronizatio...

In this paper, a new concept for increasing the airport security is proposed. The proposed innovative system is studied and developed in the ATOM (Airport detection and Tracking Of dangerous Materials by active and passive sensors arrays) project, funded by the European Commission. It foresees the definition of a multi-sensor approach that integrates active and passive radar sensors with curren...

Bistatic synthetic aperture radar (SAR) enables new defense as well as environmental applications where the characteristics of the bistatic reflectivity can be exploited. Experimental results obtained with microwave systems have been reported but not much is published using lower frequencies (< 1GHz). FOI has been active in this part of the electromagnetic spectrum for many years with the devel...

The transfer of the forward scatter (FS) concept to passive coherent location (FS PCL) systems provides a new emerging area of research. This article is dedicated to the investigation of various aspects of a bistatic passive coherent location (PCL) system operating in the FS mode. For efficient signal processing, appropriate FS PCL system analysis is presented. It is shown that using a relative...

Recently joint radar communication (JRC) systems have gained considerable interest for several applications such as vehicular communications, indoor localization and activity recognition, covert military satellite based remote sensing. In these frameworks, bistatic/passive deployments with directional beams explore the angular search space identify mobile users/radar targets. Subsequently, link...

Some outcomes of a feasibility analysis of a spaceborne bistatic radar mission for soil moisture retrieval are presented in this paper. The study starts from the orbital design of the configuration suitable for soil moisture estimation identified in a previous study. This configuration is refined according to the results of an analysis of the spatial resolution. The paper focuses on the assessm...

In monostatic continuous wave (CW) radar the dominant waveform is periodic linear frequency modulation, mostly because its stretch processing requires sampling rate much lower than the bandwidth. In a bistatic scene a clean copy of the transmitted signal, required in stretch processing, is not available to the receiver. That opens the competition for other periodic waveforms. The authors study ...

A novel scheme to achieve three-dimensional (3D) target location in bistatic radar systems is evaluated. The proposed scheme develops the additional information of the bistatic radar, that is the transmit angles, to estimate the 3D coordinates of the targets by using multiple-input multiple-output techniques with a uniform circular array on transmit and a uniform linear array on receive. The tr...

In this article, we consider the joint estimation of direction-of-departure (DOD) and direction-ofarrival (DOA) information of maneuvering targets in a bistatic multiple-input multiple-output (MIMO) radar system that exploits spatial time-frequency distribution (STFD). STFD has been found useful in solving various array processing problems, such as direction finding and blind source separation,...

The performance and capabilities of a bistatic spaceborne synthetic aperture radar (SAR) are analyzed, where the transmitter and receiver are in different orbits. Such a configuration may be optimized for a broad range of applications like frequent monitoring, wide swath imaging, single-pass crosstrack interferometry, along-track interferometry, resolution enhancement or radar tomography.