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Denial of bistatic hosting by spatialtemporal waveform design

Summary: Denial of bistatic hosting by spatial­temporal
waveform design
H.D. Griffiths, M.C. Wicks, D. Weiner, R. Adve, P.A. Antonik and I. Fotinopoulos
Abstract: A set of theoretical techniques to prevent a radar from being used by a bistatic radar
receiver as a non-cooperative illuminator are analysed. This works by radiating in addition to the
radar signal waveform, a `masking signal' waveform which is orthogonal to the radar signal
waveform, both in the coding domain and the spatial domain. A number of different coding
schemes are analysed. Two spatial coding methods are presented and analysed: the first uses a pair
of interferometer elements at the extremities of the radar antenna array; the second uses a Butler
matrix to generate a set of orthogonal beams. System-level calculations are presented to show the
level of masking of the radar signal received by a bistatic radar receiver, and the suppression of the
masking signal in the host radar echo. Some ideas for further work are presented.
1 Introduction
Many countries have invested heavily in the development of
advanced surveillance systems and technologies. Of
increasing concern is the threat that potential adversaries
may use bistatic technologies to take advantage of
significant investment in advanced sensors by our own
countries [1, 2]. With relatively inexpensive receiver
systems, an adversary could use the signals as bistatic


Source: Adve, Raviraj - Department of Electrical and Computer Engineering, University of Toronto


Collections: Engineering