This paper reviews the concept of a forward-scatter radar (FSR) which exploits the enhanced bistatic radar cross-section of a target in the forward direction (as opposed to the conventional back-scatter direction). FSR has the potential to reliably detect and track small air-vehicles with high sensitivity. Fundamentals of radar (including monostatic, bistatic, and multistatic) and a brief histo...

We present a new passive, over-the-horizon (OTH) radar system consisting of the transmitters for the HF radio station WWV and the dipole-antenna array that comprises the first station of the Long Wavelength Array (LWA), or “LWA1.” We demonstrate that these two existing facilities, which are operated for separate purposes, can be used together as a relatively powerful bistatic, HF radar, capable...

Hugh Griffiths holds the THALES/Royal Academy Chair of RF Sensors in the Department of Electronic and Electrical Engineering at University College London, England. From 2006–2008 he was Principal of the Defence Academy of Management and Technology. He received the MA degree in Physics from Oxford University in 1975, then spent three years working in industry, before joining University College L...

Abstract—A comprehensive facet model for bistatic synthetic aperture radar (Bis-SAR) imagery of dynamic ocean scene is presented in this paper. An efficient facet scattering model is developed to calculate the radar cross section (RCS) of the ocean surface for BisSAR firstly. Further more, this facet model is combined with a bistatic velocity bunching (V B) modulation of long ocean waves to obt...

The Radar Cross Section of a target plays an important role in the detection of targets by radars‎. ‎This paper presents a new method to predict the bistatic and monostatic RCS of coated electrically large objects. ‎The bodies can be covered by lossy electric and/or magnetic Radar Absorbing Materials (RAMs)‎. ‎These materials can be approximated by the Fresnel reflection coefficients‎. ‎The pro...

An analysis is presented of the results from recent trials to gather 2.4 GHz bistatic sea clutter, and in particular, of fitting the compound K distribution model both to bistatic clutter data and to simultaneously-acquired monostatic clutter data. It is found that the K distribution provides a good fit to the bistatic data, but that the bistatic clutter is significantly less ‘spiky’ than that ...

The motivations for this thesis are the investigation of bistatic Synthetic Aperture Radar (SAR) image formation and the development of bistatic SAR algorithms to accommodate various bistatic SAR geometries. Traditional monostatic SAR algorithms based on frequency domain methods assume a single square root (a hyperbolic) range equation. In bistatic SAR data, the range history of a target has a ...

We present a description and analysis of the German WW2 bistatic radar system Klein Heidelberg. A brief account is given of the nature of the electronic war between the Allied bomber aircraft and the German air defence system, to show the context in which the Klein Heidelberg system evolved. This is followed by a description of the development of Klein Heidelberg, a technical description, and a...

Aim at overcoming limitations from a single fixed aspect in monostatic inverse synthetic aperture radar (ISAR) system, bistatic radar system becomes a hot research topic in ISAR imaging. However, it is become more difficult to obtain a high resolution ISAR image of maneuvering target in receiver centered region area of bistatic radar for time varying bistastic angle and equivalent line of sight...

Either passive calibration targets are expensive and complex to manufacture or their bistatic RCS levels are significantly lower than the monostatic RCS levels of targets such as spheres, dihedraland trihedral corner reflectors. In this paper the performance of an active calibration target with relative high bistatic RCS values is illustrated as a reference target for bistatic RCS measurements....