Directional signal modulation by means of switched spaced antennas |
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Authors: | Baghdady EJ |
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Affiliation: | EJB Res. Associates, Weston, MA; |
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Abstract: | The theory of modulation by hopping or by commutation among a number of spaced antennas is presented. The theory brings out the important considerations and criteria for determining the separation of discrete antennas in time and/or space that produces a desired modulation. In addition, antenna hopping and commutation are proposed for generating direction-dependent spread spectrum to enhance receiving system anti-interference processing gain and/or transmitted signal camouflage and LPI, as well as to provide an effective means for channel monitoring and analytical probing |
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