Off-board influence system

Patent metadata

Field	Value
Publication number	US-9778000-B2
Application number	US-201615182932-A
Country	US
Kind code	B2
Filing date	Jun 15, 2016
Priority date	Sep 7, 2012
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

An influence system including open cell structures with one or more fractal reflective or resonating structures, wherein the fractal reflective or resonating structures are adapted to produce an emitted reflective or resonance signal that approximately matches a target electromagnetic signal reflection or resonance profile comprising a plurality of electromagnetic signal characteristics, said plurality of electromagnetic signal characteristics, a tow yoke coupled to one end of said blanket comprising a floatation chamber section, a tow cable adapted to tow said tow yoke and blanket, said tow cable comprising a low electromagnetic observable material or having a radar absorptive material coating.

First claim

The invention claimed is:

1. A method of operation for an system comprising:
providing an influence system comprising:
a blanket formed with one or more fractal antenna sections adapted to resonate or reflect a plurality of electromagnetic signals based on reception of said plurality of electromagnetic signals, an orientation of one or more said source entities, and a position of the one or more source entities;
a control system with said influence system adapted to control a position and orientation of said blanket with respect to said one or more source entities;
a sensor system adapted to sense said plurality of electromagnetic signals and position and orient said support system and blanket so as to maximize reflections and resonance of said plurality of electromagnetic signals from said blanket and a support system adapted to position said blanket with respect to one or more said source entities;
mounting the influence system on the support system;
coupling the control system with said influence system;
sensing the plurality of electromagnetic signals;
identifying the plurality of electromagnetic signals from sources emitted or received from or by one or more source entities wherein the behavior of the plurality of electromagnetic signals is to be influenced in a predetermined way;
determining a position of the one or more source entities and an orientation of the one or more source entities based on the position of the one or more source entities; and
positioning and orienting the support system and blanket to resonate or reflect a plurality of electromagnetic signals.

2. A method of operating a system comprising:
determining an electromagnetic (EM) signal reflection or resonance profile comprising a plurality of electromagnetic signal characteristics, said signal characteristics comprise an electromagnetic signal reflection or resonance off of a moving structure, said electromagnetic signals comprise electromagnetic signals emitted from a mobile entity tracking or navigation system, wherein the electromagnetic signal reflection has a maximum intensity within an angle of approximately zero degrees to 30 degrees from a first plane, wherein said signal characteristics further comprise a threshold signal intensity value which is determined based on said EM signal reflection or resonance;
providing an influence system comprising a blanket formed with one or more fractal antenna sections adapted to resonate or reflect a plurality of said electromagnetic signal reflection or resonance profiles adapted to simulate an electromagnetic signal reflection or resonance from said moving structure, wherein said influence system further comprises a support structure adapted to orient said blanket to control said reflection or resonance to approximate said threshold signal intensity value; and
positioning said influence system in a path of the plurality of electromagnetic signals of the mobile entity tracking or navigation system so as to maximize resonance or reflection of said electromagnetic signals towards said mobile entity tracking or navigation system.

Assignees

• Us Navy

Inventors

• Stocke Jr William R

Classifications

• H01Q15/14

  Reflecting surfaces; Equivalent structures {(electromagnetic shields H01Q1/526)} · CPC title

• H01Q1/34

  Adaptation for use in or on ships, submarines, buoys or torpedoes (for subaqueous use H01Q1/04) · CPC title

• F41J2/00 Primary

  Reflecting targets, e.g. radar-reflector targets; Active targets transmitting electromagnetic {or acoustic} waves · CPC title

• H01Q17/00 Primary

  Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems · CPC title

• H01Q1/36

  Structural form of radiating elements, e.g. cone, spiral, umbrella; {Particular materials used therewith}(H01Q1/08, H01Q1/14 take precedence) · CPC title