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Multi-element Magnetic Receiver for Interference Suppression and Signal Enhancement

A signal and antenna element technology, applied in the field of magnetic communication systems, can solve the problems of magnetic communication system direction finding operation difficulties, inaccurate signal power, and reduction

Inactive Publication Date: 2016-06-01
LOCKHEED MARTIN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as mentioned above, magnetic communication systems suffer from inaccuracies and signal power reductions that make direction finding operations difficult.

Method used

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  • Multi-element Magnetic Receiver for Interference Suppression and Signal Enhancement
  • Multi-element Magnetic Receiver for Interference Suppression and Signal Enhancement
  • Multi-element Magnetic Receiver for Interference Suppression and Signal Enhancement

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Embodiment Construction

[0016] It should be understood that the drawings and description of the present invention have been simplified to show elements that are relevant to a clear understanding of the present invention, but that many other features found in a typical magnetic communication system, such as an underground magnetic communication system, have been removed for clarity. element. However, since such elements are well known in the art and since they do not facilitate a better understanding of the invention, a discussion of such elements is not provided herein. The disclosure herein is committed to all such changes and modifications known to those skilled in the art.

[0017] In the following detailed description, reference is made to the accompanying drawings, which show by way of illustration specific embodiments in which the invention may be practiced. It should be understood that the various embodiments of the invention, although different, are not necessarily mutually exclusive. Furth...

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Abstract

A system and method for enhancing magnetic communication signals is provided. A multi-element receiver is used to generate multiple input signals. A set of weights is generated and applied to the signals using, for example, the calculated covariances of the plurality of input signals. Weights are used to generate a single output signal that represents the weighted sum of the input signals.

Description

[0001] This application claims priority to US Patent Application Serial No. 13 / 164,375, filed June 20, 2011, entitled "Multi-element Magnetic Receiver For Interference Suppression And Signal Enhancement," the subject matter of which is incorporated by reference in its entirety. technical field [0002] The present invention relates to magnetic communication systems, and more particularly to magnetic communication receivers and methods for interference suppression and signal enhancement. Background technique [0003] Underground communication systems, such as those based on radio frequency (RF) and magnetic signals, suffer from noise and other types of interference that prevent their intended operation. For example, the orientation of a transmitter and / or the relative positions of the transmitter and receiver can affect the direction and strength of the emitted field relative to the receiver. Also, intermediate media such as the atmosphere, land, and man-made obstacles can af...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/08
CPCH04B7/0848H04B7/086H04B7/0865
Inventor T.M.帕克斯R.瓦西维奇D.勒文
Owner LOCKHEED MARTIN CORP