Non-coherent cooperative jammer for multi-platform applications

Abstract

Cooperative coherent systems are well-known in radar and countermeasures communities where the transmitter and receiver antennas are co-located on the same platform; hence, the radio frequency (RF) sources are synchronized and the physical separation of coherent systems is limited or confined within the same platform. To improve the effectiveness of cooperative countermeasure systems, it is highly desired to significantly increase the physical separation between cooperative elements. In this paper, we study a non-coherent cooperative RF system where the cooperative elements are located on two separate platforms without hard-line connections to them. Hence, the cooperative signal exchange among multiple cooperative elements has to be transmitted via an RF link and the non-coherent cooperative system would allow the RF source to be located on a separate platform, thus increasing the physical separation. The two cooperative elements are operated with two separate local oscillators, which leads to large non-coherency between multiple platforms.

Theory and Design of Blink Jamming

“…where p n is the power of the skin return and, j n is the power of the jammer. Substituting (12) into (9) results in:…”

“…This combination of characteristics makes a detailed understanding of formation jamming and how to design effective attacks using it highly desirable. Unfortunately, there is little open literature on the subject of formation jamming outside brief mentions in a few text books, [6] and [8], that the technique exists and several conference papers that are limited to high-level modelling of the technique [9][10][11][12][13][14].…”