Multipath-adapted holographic communications apparatus and

39 Pages·2013·3.31 MB·English

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US 20050100077A1
(19) United States
(12) Patent Application Publication (10) Pub. No.: US 2005/0100077 A1
Rosen et al. (43) Pub. Date: May 12, 2005
(54) MULTIPATH-ADAPTED HOLOGRAPHIC Publication Classi?cation
COMMUNICATIONS APPARATUS AND
METHODS (51) Int. C1.7 ..................................................... .. H04B 1/69
(52) US. Cl. ............................................................ ..375/130
(76) Inventors: Lowell Rosen, La Jolla, CA (US);
Robert F. Gazdzinski, San Diego, CA
(Us) (57) ABSTRACT
Correspondence Address:
Robert F. Gazdzinski, Esq.
Galdlillski & Associates Improved apparatus and methods for utilizing holographic
Suite 375 Waveforms for a variety of purposes including communica
11440 West Bernardo Court tion, ranging, and detection. In one exemplary embodiment,
San Diego’ CA 92127 (Us) the holographic Waveforms are transmitted over an RF
bearer medium to provide, inter alia, highly covert commu
(21) Appl' NO': 10/910’913 nications, radar systems, and microWave data links. Multi
(22) Filed: Aug 3’ 2004 path propagation is compensated for by either ?ltering the
multipath signals in the decoded baseband, or alternatively
Rdated U_S_ App?cation Data adding the various signals, using a poWer spectrum. Meth
ods of providing multiple access and high bandwidth data
(60) Provisional application No. 60/492,628, ?led on Aug. transmission are also disclosed. Improved apparatus utiliz
4, 2003. Provisional application No. 60/529,152, ?led ing these features; e.g., a Wireless miniature covert trans
on Dec. 11, 2003. ceiver/locator, are also disclosed.
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